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PHCY 500 Physiology Questions Exams And 100% Answers
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PHCY 500 Physiology QuestionsExams And 100% Answers
To prevent metabolic acidosis, what compound does your kidney reabsorb? - Answer
bicarbonate
What enzyme in the kidney is involved in helping maintain blood pH? - Answer carbonic
anhydrase
For a drug that is filtered by the kidney, what factors would impact its ability to be
filtered? - Answer molecular binding, protein size, and neuron function
An increase in serum potassium would cause what hormone to be secreted to help
maintain homeostasis? - Answer aldosterone
Angiotensin II is formed by the enzyme ACE. The more angiotensin II circulating will
result in - Answer increased blood pressure
Constrictions of the renal afferent arteriole will cause GFR to - Answer decrease
Over a normal range of mean arterial pressure (MAP), as MAP increases, GFR will -
Answer remain unchanged
Which molecule is most likely to reabsorbed from the urine? A drug that is lipophilic and
- Answer neutral in charge
What would happen if you blocked sodium channels on the neuron? - Answer It would
prevent depolarization
In your own words, describe afterload? - Answer Pressure that arteries put on blood
flowing out of the heart to the rest of the body
What factors would cause mean arterial pressure (or blood pressure) to increase? -
Answer vasoconstriction
What fiber type is associated with the sensation of sharp pain that can be located? -
Answer A-delta fiber
What is the role of the spinothalamic tract in detecting pain? - Answer intensity and
location of pain
If you wanted to slow the conduction of a neuron, I would increase the release of this
excitatory neurotransmitter from the synapse - Answer glutamate
What would happen if you blocked sodium channels on the neuron? - Answer it would
, prevent depolarization
A patient is feeling very tired and has a low metabolic rate. To diagnosis dysfunction of
the thyroid gland, this hormone produced by the thyroid would be measured in blood
because it is responsible for controlling metabolic rate - Answer T4
Leg movement helps blood return to the heart. What heart chamber would be first to
receive blood as a result of leg movement - Answer right atrium
High levels of this phagocytic white blood cell may indicate inflammation and thus an
infection. It is the most abundant white blood cell in your blood - Answer neutrophil
A patient experiencing low blood sugar may be given an injection of this hormone which
is produced by the pancreas and increases blood glucose - Answer glucagon
Medications can control heart rhythm by impacting this molecule that acts through
L-channels which contribute to the slow, phase 2 part of the cardiac action potential. -
Answer calcium
This valve sits between the right atrium and ventricle - Answer tricuspid
Romiplostim is used to stop bleeding by increasing the production of these cells from
megakaryocytes - Answer platelets
Some diuretics work in the central part of the nephron because this section absorbs
more salt water. By blocking this section of the nephron, a patient can remove more
water. What part of the nephron do these diuretics work at? - Answer Henle's loop
A carbohydrate based medication may be broken down in the mouth by this enzyme -
Answer amylase
Dysfunction of the heart can lead to the atria not depolarizing properly. On an EKG, this
change in atria depolarization would likely change this EKG component - Answer
P-wave
For some anemias, treatment involves supplementation with this mineral that helps red
blood cells carry oxygen. - Answer iron
A patient in the emergency department who has a low heart rate may be give a drug that
stimulates this neural pathway to increase heart rate - Answer sympathetic nervous
system
An athlete maintains normal cardiac output even though they have a lower resting heart
rate. This is because they have a higher __1__ or volume of blood pumped from
ventricles per beat. - Answer stroke volume
After the COVID vaccine, people are protected by their immune system because of
antibodies secreted by these cells. - Answer B-cells
Difficulty breathing (dyspnea) impacts the total volume of inspired air with each breath
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