APMLE Recall Questions Physiology With Correct
Answers
1. What hormone is secreted by the zona glomerulosa of the adrenal gland Zona fasciculate
Zona reticularis - (ANSWERS)Adrenal medulla? Aldosterone, Glucocorticoids, Androgens,
Catecholamines
2. Where is erythropoietin made Hormone made to promote formation of RBC -
(ANSWERS)Kidney
3. What increases diffusion - (ANSWERS)Solubility
4. Comparison of pulmonary and systemic circulation - (ANSWERS)Blood flow volume is equal
5. What does aldosterone do - (ANSWERS)Increased reabsorption of Na+ and decreased
secretion of K+
6. What is the fastest conducting axon - (ANSWERS)Large myelinated
7. Which of the following require energy - (ANSWERS)Active transport
8. Which ion is a clotting factor - (ANSWERS)Calcium
9. Rapid repolarization is result of - (ANSWERS)K+ efflux
10. What is lacking in smooth muscle - (ANSWERS)Troponin
11. Competitive inhibition can be reversed by - (ANSWERS)Increasing substrate
12. Iron is carried in the blood by - (ANSWERS)Transferrin
13. Best measure of excretion capacity of kidneys - (ANSWERS)Creatinine clearance
14. What aids the absorption of Vit B12 from intestine - (ANSWERS)Intrinsic factor
15. What is the dicrotic notch - (ANSWERS)Closure of aortic valve and accompanying back
pressure
16. Best way to build up skeletal muscle is - (ANSWERS)Exercise
17. ADH (vasopressin) is secreted by what part of the pituitary gland - (ANSWERS)Posterior lobe
18. What secretes rennin - (ANSWERS)Juxtaglomerular cells adjacent to afferent arterioles
, APMLE Recall Questions Physiology With Correct
Answers
19. 65% of glomerular filtrate is reabsorbed where - (ANSWERS)Proximal convoluted tubule
20. Where does aldosterone act - (ANSWERS)Distal tubules
21. Where is melatonin produced - (ANSWERS)Pineal gland
22. Hard contraction of muscle resulting from sustained stimulus - (ANSWERS)Tetanus
23. Which cell has the fastest AP - (ANSWERS)Nerve cell
24. What is true of both sympathetic and parasympathetic responses - (ANSWERS)Presynaptic
release of Ach
25. What represents and AV delay - (ANSWERS)Increased PR segment
26. What represents purkinje - (ANSWERS)ST segment
27. Calcium binds to which molecules to produce muscle contraction - (ANSWERS)Troponin -
skeletal m. & Calmodulin - smooth muscle
28. After an MI, what is elevated - (ANSWERS)First 6 hrs EKG is gold standard: troponin is used
w/in 1st 8 hr, CK-MB is test of choice in 1st 24 hr post MI, LDH1 is test of choice from 2-7 days
post MI. EKG changes can include ST elevation (transmural ischemia) and Q waves (transmural
infarct)
29. What degrades blood clots - (ANSWERS)Plasmin
30. What does the T wave represent - (ANSWERS)Ventricular repolarization
31. What drives the AP in neuronal cells - (ANSWERS)Na+ uptake
32. Actin and myosin are together in which band - (ANSWERS)A Band
33. Increase urinary flow by: - (ANSWERS)Dilating afferent arterioles (which will increase gfr
and rbf)
34. The major difference b/w skeletal and smooth muscle - (ANSWERS)Comparison of the
contractile filaments
Answers
1. What hormone is secreted by the zona glomerulosa of the adrenal gland Zona fasciculate
Zona reticularis - (ANSWERS)Adrenal medulla? Aldosterone, Glucocorticoids, Androgens,
Catecholamines
2. Where is erythropoietin made Hormone made to promote formation of RBC -
(ANSWERS)Kidney
3. What increases diffusion - (ANSWERS)Solubility
4. Comparison of pulmonary and systemic circulation - (ANSWERS)Blood flow volume is equal
5. What does aldosterone do - (ANSWERS)Increased reabsorption of Na+ and decreased
secretion of K+
6. What is the fastest conducting axon - (ANSWERS)Large myelinated
7. Which of the following require energy - (ANSWERS)Active transport
8. Which ion is a clotting factor - (ANSWERS)Calcium
9. Rapid repolarization is result of - (ANSWERS)K+ efflux
10. What is lacking in smooth muscle - (ANSWERS)Troponin
11. Competitive inhibition can be reversed by - (ANSWERS)Increasing substrate
12. Iron is carried in the blood by - (ANSWERS)Transferrin
13. Best measure of excretion capacity of kidneys - (ANSWERS)Creatinine clearance
14. What aids the absorption of Vit B12 from intestine - (ANSWERS)Intrinsic factor
15. What is the dicrotic notch - (ANSWERS)Closure of aortic valve and accompanying back
pressure
16. Best way to build up skeletal muscle is - (ANSWERS)Exercise
17. ADH (vasopressin) is secreted by what part of the pituitary gland - (ANSWERS)Posterior lobe
18. What secretes rennin - (ANSWERS)Juxtaglomerular cells adjacent to afferent arterioles
, APMLE Recall Questions Physiology With Correct
Answers
19. 65% of glomerular filtrate is reabsorbed where - (ANSWERS)Proximal convoluted tubule
20. Where does aldosterone act - (ANSWERS)Distal tubules
21. Where is melatonin produced - (ANSWERS)Pineal gland
22. Hard contraction of muscle resulting from sustained stimulus - (ANSWERS)Tetanus
23. Which cell has the fastest AP - (ANSWERS)Nerve cell
24. What is true of both sympathetic and parasympathetic responses - (ANSWERS)Presynaptic
release of Ach
25. What represents and AV delay - (ANSWERS)Increased PR segment
26. What represents purkinje - (ANSWERS)ST segment
27. Calcium binds to which molecules to produce muscle contraction - (ANSWERS)Troponin -
skeletal m. & Calmodulin - smooth muscle
28. After an MI, what is elevated - (ANSWERS)First 6 hrs EKG is gold standard: troponin is used
w/in 1st 8 hr, CK-MB is test of choice in 1st 24 hr post MI, LDH1 is test of choice from 2-7 days
post MI. EKG changes can include ST elevation (transmural ischemia) and Q waves (transmural
infarct)
29. What degrades blood clots - (ANSWERS)Plasmin
30. What does the T wave represent - (ANSWERS)Ventricular repolarization
31. What drives the AP in neuronal cells - (ANSWERS)Na+ uptake
32. Actin and myosin are together in which band - (ANSWERS)A Band
33. Increase urinary flow by: - (ANSWERS)Dilating afferent arterioles (which will increase gfr
and rbf)
34. The major difference b/w skeletal and smooth muscle - (ANSWERS)Comparison of the
contractile filaments
