Following administration of nitroglycerin to a man with crushing chest pressure, he experiences a significant increase in his heart rate. this is most likely the result of?
Answer:
Following administration of nitroglycerin to a man with crushing chest pressure, he experiences a significant increase in his heart rate. this is most likely the result of angina.
Patients who have a systolic pressure of higher than 100 mm Hg and the recommended, unexpired medication should be given nitroglycerin. In the pre-hospital scenario, a patient should only get three (3) nitroglycerin pills or sprays. Regardless of whether the drug is otherwise appropriate for the situation of the patient, it is not a good idea to give a patient an outdated prescription. A sublingual tablet is available for oral administration of nitroglycerin. The pills are often taken as required, either five to ten minutes before performing tasks that might trigger angina episodes or as soon as an attack begins. The oral route is used in part to prevent medication breakdown. Sublingual absorption can, in general, be more effective for some medications than intestinal uptake.
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Which clinical manifestation, when found in newborns, may indicate the presence of cystic fibrosis?
Meconium ileus, in newborns, may indicate the presence of cystic fibrosis
Cystic fibrosis is a genetic disorder mainly associated with cells capable of producing mucus. These cells are found in sweat glands, digestive system and lungs belonging to respiratory system. Thus, the abnormality in mucus production, in sticky and thick nature, disrupts the normal functioning of human body. They block the ducts and tubes, which can result in life threatening condition.
The mutation responsible for cystic fibrosis occurs in the gene CFTR, which is abbreviated form of Cystic fibrosis trans membrane conductance regulator. The primary function of gene is to regulate the exchange of fluids and salts present in the cells.
Meconium ileus refers to the inability of bowel movement in the newborn. This occurs due to thick and sticky mucus, which is indicative of cystic fibrosis, as discussed above.
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A carbohydrate composed of two covalently-bonded simple sugars (monosaccharides) is called a(n)?
A carbohydrate composed of two covalently bonded simple sugars is called a disaccharide.
Carbohydrates or sugars are one of the four main categories of the macromolecules that make up living things (the other three being nucleic acids, proteins and lipids). It can either be a simple sugar (sugar monomer or monosaccharide) or a polymer of simple sugars.
Carbohydrates are composed entirely of carbon, oxygen and hydrogen atoms. Simple sugars or monosaccharides contain six carbon atoms, twelve hydrogen atoms and six oxygen atoms. When two monosaccharides bond covalently, they form a disaccharide.
Some examples of disaccharides include:
Sucrose or table sugar - It is made up of one glucose molecule and one fructose moleculeLactose or milk sugar - It is made up of one glucose and one galactose moleculeMaltose or malt sugar - It is made up of two glucose molecules.Learn more about carbohydrates here:
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The imaging method that uses a rapidly changing magnetic field to induce brief electrical current pulses in the brain that then trigger action potentials in the neuron is called:__________
The imaging method that uses a rapidly changing magnetic field to induce brief electrical current pulses in the brain that then trigger action potentials in the neuron is called functional magnetic resonance imaging
However, this imaging technique is usually used to evaluate region of blood flow changes in the cortex of the brain that occur during patient performance of specific tasks
What is a neuron?A neuron can be defined as the basic and functional unit of the nervous system. Below are some types of neurons:
Sensory neuronsMotor neuronsIntermediate neuronsThe neurons of the nervous system are responsible for transmitting information and signals from one of the the nervous system to another.
The nervous system generally is divided into
Central nervous systemPeripheral nervous systemThe central nervous systemis divided into the
BrainSpinal cordThe Peripheral nervous system is divided into:
Somatic nervous systemAutonomic nervous systemThe autonomic nervous system is divided into:
Sympathetic nervous systemParasympathetic nervous systemSo therefore, the imaging method that uses a rapidly changing magnetic field to induce brief electrical current pulses in the brain that then trigger action potentials in the neuron is called functional magnetic resonance imaging
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Identify the hormone abbreviations and classify them by their main target organs.
Mammary Gland - PRL
Pituitary - TRH, GHRH, CRH
Pituitary - TRH, GHRH, CRHLiver, Fat, Muscle - GH, IGF
Pituitary - TRH, GHRH, CRHLiver, Fat, Muscle - GH, IGFThyroid - TSH
Pituitary - TRH, GHRH, CRHLiver, Fat, Muscle - GH, IGFThyroid - TSHTestis/Ovaries - LH/FSH
Pituitary - TRH, GHRH, CRHLiver, Fat, Muscle - GH, IGFThyroid - TSHTestis/Ovaries - LH/FSHAdrenal Cortex - ACTH
What are hormones ?Chemicals called hormones function in the body as messenger molecules. They are created in one area of the body and then go to other areas where they assist regulate how cells and organs function. For instance, the pancreatic beta cells produce the hormone insulin.
Hormones alter gene expression or cellular function and have an impact on behaviour by raising the probability that particular behaviours will take place in response to particular inputs. This is accomplished through hormones' effects on people's sensory systems, central integrators, and/or periphery effectors.Learn more about Hormones here:
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The pop-out phenomenon illustrates that some stimuli almost inevitably trigger? difference threshold. sensory adaptation. selective inattention. priming. transduction.
The pop-out phenomenon illustrates that some stimuli almost inevitably trigger is Selective inattention.
Selective inattention- Lack of conscious attention to certain physical or emotional stimuli. For example, concentrating on a single speaker during a party where many individuals are speaking.
Stimuli- A change in the internal or external environment is referred to as a stimulus. anything that affects or triggers a brief spike in physiological activity or reaction in the body as a whole or in any individual sections.
Physiological Activity- A field of biology that studies the procedures and endeavors that sustain life, or the actions and procedures used by a live entity or any of its components to operate.
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Which finding is associated with thyroid storm?
a. tremors
b. hypothermia
c. bradycardia
d. fatigue
Hypothermia is associated with thyroid storm.
What is a thyroid storm and what causes it?Thyrotoxic crisis, often known as a thyroid storm, is an uncommon but potentially fatal illness in which your thyroid abruptly generates and releases massive amounts of thyroid hormone. Usually, a sudden incident or disease, such surgery or an infection, is what triggers it.
What happens during a thyroid storm?Untreated or inadequately treated hyperthyroidism is a risk factor for thyroid storm, a potentially fatal medical illness. Heart rate, blood pressure, and body temperature can all reach dangerously high levels while experiencing a thyroid storm. Thyroid storm frequently results in death without immediate, vigorous treatment.
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A mechanism that generates musical vibrations and launches them into the air is called a(n) _____.
Mechanism that generates musical vibrations and launches them into the air is called an aerophone.
What is an aerophone?An aerophone is a musical instrument that generates sound by causing air to vibrate without the use of any type of strings or membranes and without the vibration of the instrument itself that add the sound. Whistles, blowholes, cup mouthpieces, reeds, organs, and the free aerophone are the six types of aerophones. With the vibration of air, the sound is produced which makes the mechanism of aerophones.
We know that many instruments make vibration when the musician strikes the strings. The trumpets, tuba, harmonica, horn, accordion, clarinet, piccolo, flute, saxophone, accordion and whistle are the examples of Aerophone. These instruments sound very good when they are played as a band as compared to sole performance.
So we can conclude that Mechanism that generates musical vibrations and launches them into the air is called an aerophone.
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In the same science fair, Tina asks the question "Does caffeine
increase the
heart rate of an earthworm?" In Test 1, she measures
the heart rate by looking at the earthworm under a microscope, the
earthworm has a heart rate of 50 bpm (beats per minute). In Test 2,
she places a few drops of caffeine on the earthworm's skin and
measures the
rate again. In this test, the heart rate is 68 bpm.
6) What is the manipulated variable?
How many drops of caffeine she drops on the worm is the manipulated variable.
In an experiment, the independent variable is a manipulated variable. Due to the fact that you may alter it, it is termed the "manipulated" one. In other words, you can choose in advance whether to raise it or lower it. Only one variable should be changed at a time throughout an experiment.
The Independent variable is Caffeine's impact. the production and use of nitrogen fertilizers, as well as the burning of fossil fuels in autos, power plants, and industries, are dependent variables that are local in scope. the heart rate of the worm is the responding variable in this experiment.
When an earthworm is given a stimulant like caffeine, its heart rate rises. Does coffee make an earthworm's heart beat faster? is the research topic upon which the experiment is based. The effect of coffee is the independent variable in this research question, and the response it causes is a change in heart rate (the dependent variable) This brings us to the following theory: "If an earthworm is given a stimulant like caffeine, then its heart rate accelerates."
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Identify the process or environment in this list that is not affected by microorganisms
In this list, the process or environment that is not affected by microorganisms.
a. oxygen cycles
What connection exists between bacteria and the oxygen cycle?
The connection between water contamination and the oxygen cycle in microorganisms is a final example. Nutrients that are normally abundant in polluted water will encourage the rapid growth of bacteria and other organisms. As they grow, the oxygen in the water is depleted.
b. global temps
The nitrogen and carbon cycles are just two of the many environmental processes that microbes are involved in. They are prevalent in almost every habitat, including the air, soil, the bottom of the deepest oceans, far below the Earth's surface, and settings with a wide variety of pressure, temperature, and chemical composition.
c. human health
Numerous mechanisms exist through which microorganisms can have an effect on human health. Pathogen-related molecular patterns are the main microbial elements associated with human health (PAMPs).
e. all have microbial involvement
correct:
all have microbial involvement
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Where is smooth muscle typically found? select one:
a. stomach.
b. intestine.
c. kidney.
d. kidney and liver.
e. stomach and intestine.
smooth muscle is typically found in:
e. stomach and intestine
The walls of hollow organs like the stomach, intestines, bladder, and uterus, as well as the walls of passageways like blood and lymph vessels and the tracts of the respiratory, urinary, and reproductive systems, are all made of smooth muscle.
An example of a smooth muscle found in the eyes is the ciliary muscle, which also affects the lens's shape by expanding and contracting the iris.
In response to cold temperatures, smooth muscle cells in the skin, such as those of the arrector pili, cause hair to stand upright.
Definition Smooth muscle:
Different systems use smooth muscle, a type of muscle tissue, to exert pressure on organs and arteries. Sheets or strands of smooth muscle cells make up smooth muscle.
Actin and myosin fibers that run through these cells are supported by a scaffolding of other proteins. When ATP is released for utilization by the myosin, smooth muscle contracts as a result of the stimulus. In contrast to the "on-or-off" contraction of skeletal muscle, the amount of ATP released by smooth muscle is proportional to the intensity of the stimulus.
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The minor groove contains less information about the identity of base pairs than the major groove because of the.
The minor groove contains less information about the identity of base pairs than the major groove because of the major groove has more chemical information than the minor groove.
Minor groove of the DNA is the segment of DNA where the backbone strands are close together. it provides less space for the proteins from the outside to come and interact and hence it contains less information.
Major groove is the segment where the backbones are the farthest possible space. This grove can accommodate a variety of proteins to come and interact non-covalently with the DNA and hence provides much more information about the DNA.
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The subconscious mechanism by which the body is able to regulate posture and movement is called:_________
The subconscious mechanism by which the body is able to regulate posture and movement is called proprioception.
What is Proprioception?This is also referred to as kinaesthesia or the sixth sense of individuals as result of its importance in the body system. It comprises of receptors which are known as proprioreceptors and mechanoreceptors which are present in the muscles, joints etc.
The mechanism is a subconscious one in which they assist in the body being able to regulate posture and movement through the receptors present in the skeletal and muscular system which is therefore why it was chosen as the correct choice.
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Which organelle plays a role in intracellular digestion?
a. golgi apparatus
b. lysosome
c. ribosome
d. chloroplast
e. plasmodesma
Answer: B. Lysosome
Organelles known as lysosomes are membrane-bounded compartments containing a variety of hydrolytic enzymes, which are the primary sites of intracellular digestion.
The organelle plays a role in intracellular digestion is lysosome. The correct option is b.
A Lysosome is a cell organelle that contains digestive enzymes and Lysosome is the membrane-bound cell organelle. Lysosomes are engaged in a variety of cellular functions. They degrade extraneous or worn-out cell components. They could be utilized to eliminate invading viruses and bacteria.
If a cell is injured beyond repair, lysosomes can assist it self-destruct in a process known as programmed cell death, or Apoptosis.
so, the correct option is b. lysosome.
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One of the keys to eating well in college is to? eat a complete breakfast. only eat salad. avoid all fats. never eat meals out.
A comprehensive breakfast with complex carbs, protein, and good unsaturated fats, such whole grain toast with peanut butter and bananas, is one way to eat healthily while at college.
How might college students' eating habits be improved?General Advice Have a positive attitude toward food and take pleasure in what you eat. Eat breakfast every day; include protein-rich foods like eggs, almonds, Greek yoghurt, or peanut butter within an hour of waking up. Eat regularly, preferably every three to four hours.
If you don't consume a balanced diet, you can really be harming your body in addition to being physically unable to engage in the activities you want to.
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Which measurement assesses the difference between measured cations (sodium and potassium) and anions (chloride and bicarbonate) in the blood?
The measurement that assesses the difference between measured cations (sodium and potassium) and anions (chloride and bicarbonate) in the blood is known as the Electrolyte test.
What is an electrolyte test?An electrolyte test may be characterized as a type of blood test that significantly acts measures or estimates the level of electrolyte imbalance in the body of an individual.
During the test, the actual level of electrolytes such as salts and minerals are estimated. This includes a variety of substances like sodium, potassium, chloride, carbonate, and bicarbonate ions. These compounds are typically found in the blood and conduct electrical impulses within the body of an individual.
Therefore, the electrolyte test is the measurement that assesses the difference between measured cations (sodium and potassium) and anions (chloride and bicarbonate) in the blood.
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You are observing a tissue under the microscope and notice dark concentric circles of matrix and osteocytes in lacunae. You identify this tissue as __________.
Bone tissue
You are observing a tissue under the microscope and notice dark concentric circles of matrix and osteocytes in lacunae. You identify this tissue as bone tissue.
What does bone tissue look like?Osteons or haversian systems are tightly packed together to form compact bone. The osteon is made up of concentric rings (lamellae) of matrix surrounding a central canal known as the osteonic (haversian) canal. The bone cells (osteocytes), which are situated between the rings of matrix, are found in regions known as lacunae.Which 4 tissues are present in bones?Osteoblasts, osteocytes, osteoclasts, and osteogenic cells are the four types of bone cells that make up bone tissues.How does bone tissue develop?The recruitment and growth of bone progenitor cells from neighboring tissues is the first step in the development of bone tissue. Next come differentiation, matrix production, and mineralization.
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Which type of tissue, in the circulatory system, is involved in regulating airflow to alveoli?
Answer:
answer is the smooth muscle
Explanation:
the smooth muscle is involved in regulating airflow and alveoli
___ is drug use that is not common within a social group and that is disapproved of by the majority. multiple choice question. deviant drug use drug abuse drug misuse recreational drug use
Deviant drug use is not common within a social group and that is disapproved of by the majority.
What is a deviant usage of drugs?If substance abuse is characterized as an illness or a crime, the loss of control linked to addiction is regarded as aberrant behavior that deviates from accepted social norms. Drugs that have been labeled addictive also have the ability to make users fearful as a preventative measure. There has been an attachment made between heredity and the idea of deviation, which appears to be more remote from a biological reason. Deviance was often believed to have genetic roots in the nineteenth century. Whether a person chooses to accept or reject the label, society and that person work together to create deviation.Learn more about the deviant drug with the help of the given link:
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can be organized around several themes. as the biological hierarchy builds from molecules on up to ecosystems, each level has blank that result from interactions among component parts. life's basic unit of blank is the cell, which occurs in two basic forms − prokaryotic and eukariotic. as organisms interact with the environment, blank cycle within an ecosystem, while blank flows one way from sunlight → chemical energy → heat. according to the core theme of blank, all of life is related by common descent. life has diversified as blank has led to the gradual accumulation of adaptations that fit populations to the environment.
The fill in the blanks will be filled as following-
can be organized around several themes. as the biological hierarchy builds from molecules on up to ecosystems, each level has emergent properties that result from interactions among component parts. life's basic unit of structure and function is the cell, which occurs in two basic forms − prokaryotic and eukaryotic.
as organisms interact with the environment, nutrients cycle within an ecosystem, while energy flows one way from sunlight → chemical energy → heat. according to the core theme of evolution, all of life is related by common descent. life has diversified as emergent properties has led to the gradual accumulation of adaptations that fit populations to the environment.
Emergent properties are the critical attributes of the biological systems, which helps us understand the interaction at a larger level.
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You want to count only the viable cells in a sample. What is the best technique to do this?.
The best technique to count only the viable cells in a sample is the plate count method.
Viable cells are living and healthy cells among a population of cells under certain conditions. These are the metabolically active cells. The cells are important to know about various properties of the species of growing cells. This property is also widely used in drug testing.
Plate count method is the widely used laboratory technique to determine the count of viable cells. It is a multi-step process that requires strict aseptic and non-contaminated environment to obtain the accurate results. The result obtained is several colonies of cells that can be seen through unaided eyes.
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why do the hottest days and coldest days of summer and winter occur about one month after the longest day or night?
The hottest days and coldest days of summer and winter occur about one month after the longest day or night because the land and oceans have to warm up, too, before the truly hot summer heat can begin.
What is Summer?This is a type of season which is characterized by the sun being very hot at that time of the year. There is usually very little precipitation and the temperature is usually high during this period.
Winter on the other hand, is the coldest time of the season and is characterized by low sunlight and a very low temperature.
However, the hottest days and coldest days of summer and winter occur about one month after the longest day or night because of the time taken to warm up the land and oceans before the season starts before the summer heat begins to be felt.
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explain how polar molecules can dissolve other polar molecules
Answer:
Explanation:
In a polar solvent, the molecules of solvent are attracted to each other by the partial charges on the ends of the molecules. When a polar solute is added, the positive polar ends of the solute molecules attract the negative polar ends of the solvent molecules and vice versa.
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If someone had a cut in their skin through which a bacterium entered, but that bacterium was then destroyed by a neutrophil, this would be an example of?
Failed external innate immunity, but successful internal innate immunity
What is Immunity ?Immunity in biology refers to an organism's capacity to fend off harmful microbes. Both specific and generic components contribute to immunity. Regardless of their antigenic makeup, the nonspecific components serve as barriers to or eliminators of a variety of infections.
There are two types of immunity: active and passive. Active immunity happens when our own immune system defends us against a pathogen. When we are shielded against a virus by immunity we have acquired from another person, this is known as passive immunity.Learn more about Immunity here:
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If a cell has a relatively high energy need, you would expect it to have _________ mitochondria than a cell with a lower energy need.
Answer:
more
Explanation:
as precipitation falls back into the earth which of the following occurs
a transpiration
b absorption
c flooding
evaporation
Answer:D) evaporation
Explanation:
The accurate answer is transpirtation :)
Indicate which of the hardy-weinberg conditions is being violated in this example: some moths on a tree are easier to see due to their lighter color and therefore are eaten by predators more often.
The Hardy-Weinberg assumption was broken because the moths that were eaten by the predators were being selected because of their lighter color, which makes some moths on a tree easier to see and, as a result, more frequently consumed by predators.
What is predators ?
Predators are living things that go after and kill prey. The term "prey" refers to the living things that predators eat. Both carnivores and omnivores can be predators.
Predators include lions, tigers, sharks, and snakes. Genotypes resulting from mutation and recombination exhibit varying levels of reproduction and survival during selection.
In a selection, the geno type or phenotype that produces the most offspring on average over the course of its life is said to be the "most fit." It is influenced by geography, history, the environment, and genetics.
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3.1 Explain FOUR mechanisms that the South African government is using deal
The South African government does everything in its power to combat crime.
It has developed a national crime prevention strategy that examines various areas of crime,
Taking the government as an example
1- is seeking a compilation of crime data. The government is looking into the issue because crime data is highly unreliable.
2-is seeking media organizations to assist in spreading awareness of certain offences. They want to educate the public about fighting and violent crime.
3. Classifying crimes and assigning punishments to each category. This is for criminals who need to be aware of the penalties they will face.
4-Increasing the executive authority of weapons, identifying smuggling routes, collaborating with neighboring states, etc. to bring the existing crime rate under some control.
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How does the cryosphere help the biosphere ability to sustain life?
Answer: The cryosphere acts like a reflective shield, protecting Earth from getting too warm.
Explanation:
Snow and ice reflect more sunlight than open water or bare ground. The presence of snow and ice affects the heat and cooling of the earth's surface, affecting the planet's energy balance.
Transcription occurs in/at the __________ and produces __________ from a(n) __________ template.
Transcription occur in the cytoplasm in prokaryotes and in nucleus of eukaryotes and produces Complementary strands from an template Strand.
What do you mean by Transcription?Transcription is the process of copying segment of DNA into RNA. The segment of DNA transcribed into RNA molecules that can incode protein are said to produce messenger RNA. Other segment of DNA are copied into RNA molecules called non coding RNA 's .
Transcription takes place in nucleus of Eukaryotes,it uses DNA as a template makes an RNA molecules.
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