BIO 255 Exam 2 Anatomy and
Physiology Compilation Actual
Exam 2026/2027 – 100% Verified |
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1. Which blood vessel class is the largest and is
characterized by having a thick tunica media
dominated by elastic laminae?
o Answer: Elastic arteries.
2. Which of the following is NOT considered an organ of
the lymphatic system?
o Answer: Pancreas.
3. The lymphatic capillary bed drains fluid directly from
where?
o Answer: Interstitial fluid.
4. Which blood vessel carries deoxygenated but nutrient-
rich blood from the intestines to the liver?
o Answer: Hepatic portal vein.
,5. The majority of venous blood from veins originating
above the diaphragm will drain into which blood
vessel before draining into the heart?
o Answer: Superior vena cava.
6. Lymph from above the diaphragm on the left side, and
bilaterally below the diaphragm is returned to the
venous circulation by way of the:
o Answer: Thoracic duct.
7. A drop of blood is in the axillary vein. What is the next
vessel that blood will enter?
o Answer: Subclavian vein.
8. The circle of Willis, or cerebral anastomosis, ensures
blood flow is consistent to the:
o Answer: Brain.
9. The hepatic portal system transports blood from:
o Answer: The intestines to the liver.
10. T cells mature where?
o Answer: Thymus.
11. Which of the following factors is NOT important in
assuring adequate venous return to the heart?
o Answer: All of these factors contribute to venous return.
12. During capillary filtration, plasma proteins that
remain in the blood do what?
o Answer: Maintain the colloid osmotic (oncotic) pressure of
the blood.
,13. Blood from the brain is drained by the:
o Answer: Internal jugular vein.
14. Where do you find red and white pulp in the
lymphatic system?
o Answer: Spleen .
15. Which of the following classes of blood vessels
contain the largest proportion of the body's blood?
o Answer: Veins.
16. Running would do what physiologically?
o Answer: Venous return to the heart increases .
17. When capillary filtration exceeds capillary
reabsorption beyond normal values, such as right-side
heart failure, the resulting accumulation of interstitial
fluid is known as:
o Answer: Edema.
18. The _________ supplies the majority of
deoxygenated blood to the small intestine and
proximal 2/3 of the large intestine.
o Answer: Superior mesenteric artery.
19. The __________ artery is a common vessel used to
check for pulse.
o Answer: Radial artery.
20. What is the innermost layer of a blood vessel?
o Answer: Tunica Intima.
, 21. What is the middle layer of a blood vessel made of
smooth muscle?
o Answer: Tunica Media.
22. What is the outermost layer of a blood vessel that
anchors it?
o Answer: Tunica Externa.
23. What are blood vessels that carry blood away from
the heart?
o Answer: Arteries.
24. What are blood vessels that carry blood back to
the heart?
o Answer: Veins.
25. In which vessels does the exchange of oxygen,
nutrients, and waste occur?
o Answer: Capillaries.
26. What structure in veins prevents the backflow of
blood?
o Answer: Valves .
27. What is the major artery that leaves the heart?
o Answer: Aorta .
28. What is the fluid that drains into the lymphatic
system called?
o Answer: Lymph .
29. Which lymphatic organ is responsible for filtering
blood and removing old red blood cells?
Physiology Compilation Actual
Exam 2026/2027 – 100% Verified |
Detailed Rationales – Pass
Guaranteed – A+ Graded (INSTANT
DOWNLOAD)
1. Which blood vessel class is the largest and is
characterized by having a thick tunica media
dominated by elastic laminae?
o Answer: Elastic arteries.
2. Which of the following is NOT considered an organ of
the lymphatic system?
o Answer: Pancreas.
3. The lymphatic capillary bed drains fluid directly from
where?
o Answer: Interstitial fluid.
4. Which blood vessel carries deoxygenated but nutrient-
rich blood from the intestines to the liver?
o Answer: Hepatic portal vein.
,5. The majority of venous blood from veins originating
above the diaphragm will drain into which blood
vessel before draining into the heart?
o Answer: Superior vena cava.
6. Lymph from above the diaphragm on the left side, and
bilaterally below the diaphragm is returned to the
venous circulation by way of the:
o Answer: Thoracic duct.
7. A drop of blood is in the axillary vein. What is the next
vessel that blood will enter?
o Answer: Subclavian vein.
8. The circle of Willis, or cerebral anastomosis, ensures
blood flow is consistent to the:
o Answer: Brain.
9. The hepatic portal system transports blood from:
o Answer: The intestines to the liver.
10. T cells mature where?
o Answer: Thymus.
11. Which of the following factors is NOT important in
assuring adequate venous return to the heart?
o Answer: All of these factors contribute to venous return.
12. During capillary filtration, plasma proteins that
remain in the blood do what?
o Answer: Maintain the colloid osmotic (oncotic) pressure of
the blood.
,13. Blood from the brain is drained by the:
o Answer: Internal jugular vein.
14. Where do you find red and white pulp in the
lymphatic system?
o Answer: Spleen .
15. Which of the following classes of blood vessels
contain the largest proportion of the body's blood?
o Answer: Veins.
16. Running would do what physiologically?
o Answer: Venous return to the heart increases .
17. When capillary filtration exceeds capillary
reabsorption beyond normal values, such as right-side
heart failure, the resulting accumulation of interstitial
fluid is known as:
o Answer: Edema.
18. The _________ supplies the majority of
deoxygenated blood to the small intestine and
proximal 2/3 of the large intestine.
o Answer: Superior mesenteric artery.
19. The __________ artery is a common vessel used to
check for pulse.
o Answer: Radial artery.
20. What is the innermost layer of a blood vessel?
o Answer: Tunica Intima.
, 21. What is the middle layer of a blood vessel made of
smooth muscle?
o Answer: Tunica Media.
22. What is the outermost layer of a blood vessel that
anchors it?
o Answer: Tunica Externa.
23. What are blood vessels that carry blood away from
the heart?
o Answer: Arteries.
24. What are blood vessels that carry blood back to
the heart?
o Answer: Veins.
25. In which vessels does the exchange of oxygen,
nutrients, and waste occur?
o Answer: Capillaries.
26. What structure in veins prevents the backflow of
blood?
o Answer: Valves .
27. What is the major artery that leaves the heart?
o Answer: Aorta .
28. What is the fluid that drains into the lymphatic
system called?
o Answer: Lymph .
29. Which lymphatic organ is responsible for filtering
blood and removing old red blood cells?
