BIOS 255 Anatomy & Physiology III
Exam 2 Chamberlain Actual
2026/2027 – Complete Questions with
Detailed Rationales | 100% Verified
Answers – Pass Guaranteed – A+
Graded INSTANT DOWNLOAD
Topic 1: Blood Vessels and Hemodynamics
Q1: Which peripheral resistance factor can be controlled most
quickly to adjust blood flow?
Answer: Vessel radius
Rationale: Vessel radius changes through vasoconstriction and
vasodilation, which are rapid physiological adjustments. Vessel
length and blood viscosity change slowly, and reticulocyte
count/angiogenesis are not immediate factors in peripheral
resistance.
Q2: What is the target tissue of ANP (Atrial Natriuretic
Peptide), a hormone that lowers blood pressure?
Answer: Kidney nephron
Rationale: ANP acts on the kidney nephrons to increase the
excretion of sodium and water, which reduces blood volume and
consequently lowers blood pressure .
, Q3: Which chemical does Aldosterone reclaim in the kidney to
help elevate blood pressure?
Answer: Sodium
Rationale: Aldosterone promotes sodium reabsorption in the
kidneys. Water follows sodium osmotically, increasing blood
volume and blood pressure .
Q4: A patient has a blood hydrostatic pressure of 30 mmHg,
an Interstitial Fluid Osmotic Pressure of 0 mmHg, a Blood
Colloid Osmotic pressure of 15 mmHg, and an Interstitial
Fluid Hydrostatic Pressure of 1 mmHg. What will be the result
at the capillary bed?
Answer: Filtration
Rationale: The Net Filtration Pressure (NFP) = (Forces favoring
filtration) - (Forces favoring reabsorption). NFP = (30 + 0) - (15 +
1) = 30 - 16 = 14 mmHg. A positive NFP means fluid will be
pushed out of the capillary (filtration) .
Q5: What is the Mean Arterial Pressure (MAP) for a patient
with a systolic pressure of 120 mmHg and a diastolic pressure
of 80 mmHg?
Answer: 93.34 mmHg
Rationale: MAP = Diastolic Pressure + (1/3 × Pulse Pressure).
Pulse Pressure = Systolic - Diastolic = 120 - 80 = 40. MAP = 80 +
(1/3 × 40) = 80 + 13.33 = 93.33 mmHg .
Q6: Blood in the left common carotid artery was previously in
which artery?
Answer: Arch of the aorta
, Rationale: The left common carotid artery branches directly from
the arch of the aorta, making it the immediate upstream vessel .
Q7: Blood in the subclavian vein flows into which vein next on
its way back to the heart?
Answer: Brachiocephalic vein
Rationale: The subclavian vein and internal jugular vein merge to
form the brachiocephalic vein on each side .
Q8: Which blood vessels take oxygenated blood to the brain?
Answer: Carotid artery
Rationale: The carotid arteries are the major arteries supplying
oxygenated blood to the brain. Jugular veins drain deoxygenated
blood from the head .
Q9: Which process occurs when blood vessels widen, leading
to increased blood flow and decreased blood pressure?
Answer: Vasodilation
Rationale: Vasodilation is the widening of blood vessels. This
decreases resistance, leading to increased blood flow and a
subsequent decrease in blood pressure .
Topic 2: Lymphatic System
Q10: What is the name of the lymphatic tissue found lining
the organs of the respiratory, digestive, urinary, and
reproductive tracts?
Answer: MALT (Mucosa-Associated Lymphoid Tissue)
, Rationale: MALT is a diffuse system of small concentrations of
lymphoid tissue found in various submucosal membrane sites of
the body, including the gastrointestinal, respiratory, and
genitourinary tracts .
Q11: What is the correct order of lymphatic flow?
Answer: Lymphatic capillaries → lymphatic vessels → lymph
nodes → lymphatic trunks → lymphatic ducts
Rationale: Lymph fluid is collected from tissues by lymphatic
capillaries, then flows through progressively larger vessels and
nodes before entering the bloodstream via the trunks and ducts .
Q12: Which lymphatic organ is found in the mediastinal
cavity, between the lungs, and superficial to the heart?
Answer: Thymus gland
Rationale: The thymus gland is located in the superior
mediastinum, the area behind the sternum and between the
lungs .
Q13: Which lymphatic duct is responsible for the drainage of
the right lower extremity?
Answer: Thoracic duct
Rationale: The thoracic duct drains lymph from the entire lower
body and the left upper quadrant. The right lymphatic duct only
drains the right upper quadrant. Therefore, the lower right
extremity drains into the thoracic duct .
Q14: What is the largest lymphatic organ?
Answer: Spleen
Exam 2 Chamberlain Actual
2026/2027 – Complete Questions with
Detailed Rationales | 100% Verified
Answers – Pass Guaranteed – A+
Graded INSTANT DOWNLOAD
Topic 1: Blood Vessels and Hemodynamics
Q1: Which peripheral resistance factor can be controlled most
quickly to adjust blood flow?
Answer: Vessel radius
Rationale: Vessel radius changes through vasoconstriction and
vasodilation, which are rapid physiological adjustments. Vessel
length and blood viscosity change slowly, and reticulocyte
count/angiogenesis are not immediate factors in peripheral
resistance.
Q2: What is the target tissue of ANP (Atrial Natriuretic
Peptide), a hormone that lowers blood pressure?
Answer: Kidney nephron
Rationale: ANP acts on the kidney nephrons to increase the
excretion of sodium and water, which reduces blood volume and
consequently lowers blood pressure .
, Q3: Which chemical does Aldosterone reclaim in the kidney to
help elevate blood pressure?
Answer: Sodium
Rationale: Aldosterone promotes sodium reabsorption in the
kidneys. Water follows sodium osmotically, increasing blood
volume and blood pressure .
Q4: A patient has a blood hydrostatic pressure of 30 mmHg,
an Interstitial Fluid Osmotic Pressure of 0 mmHg, a Blood
Colloid Osmotic pressure of 15 mmHg, and an Interstitial
Fluid Hydrostatic Pressure of 1 mmHg. What will be the result
at the capillary bed?
Answer: Filtration
Rationale: The Net Filtration Pressure (NFP) = (Forces favoring
filtration) - (Forces favoring reabsorption). NFP = (30 + 0) - (15 +
1) = 30 - 16 = 14 mmHg. A positive NFP means fluid will be
pushed out of the capillary (filtration) .
Q5: What is the Mean Arterial Pressure (MAP) for a patient
with a systolic pressure of 120 mmHg and a diastolic pressure
of 80 mmHg?
Answer: 93.34 mmHg
Rationale: MAP = Diastolic Pressure + (1/3 × Pulse Pressure).
Pulse Pressure = Systolic - Diastolic = 120 - 80 = 40. MAP = 80 +
(1/3 × 40) = 80 + 13.33 = 93.33 mmHg .
Q6: Blood in the left common carotid artery was previously in
which artery?
Answer: Arch of the aorta
, Rationale: The left common carotid artery branches directly from
the arch of the aorta, making it the immediate upstream vessel .
Q7: Blood in the subclavian vein flows into which vein next on
its way back to the heart?
Answer: Brachiocephalic vein
Rationale: The subclavian vein and internal jugular vein merge to
form the brachiocephalic vein on each side .
Q8: Which blood vessels take oxygenated blood to the brain?
Answer: Carotid artery
Rationale: The carotid arteries are the major arteries supplying
oxygenated blood to the brain. Jugular veins drain deoxygenated
blood from the head .
Q9: Which process occurs when blood vessels widen, leading
to increased blood flow and decreased blood pressure?
Answer: Vasodilation
Rationale: Vasodilation is the widening of blood vessels. This
decreases resistance, leading to increased blood flow and a
subsequent decrease in blood pressure .
Topic 2: Lymphatic System
Q10: What is the name of the lymphatic tissue found lining
the organs of the respiratory, digestive, urinary, and
reproductive tracts?
Answer: MALT (Mucosa-Associated Lymphoid Tissue)
, Rationale: MALT is a diffuse system of small concentrations of
lymphoid tissue found in various submucosal membrane sites of
the body, including the gastrointestinal, respiratory, and
genitourinary tracts .
Q11: What is the correct order of lymphatic flow?
Answer: Lymphatic capillaries → lymphatic vessels → lymph
nodes → lymphatic trunks → lymphatic ducts
Rationale: Lymph fluid is collected from tissues by lymphatic
capillaries, then flows through progressively larger vessels and
nodes before entering the bloodstream via the trunks and ducts .
Q12: Which lymphatic organ is found in the mediastinal
cavity, between the lungs, and superficial to the heart?
Answer: Thymus gland
Rationale: The thymus gland is located in the superior
mediastinum, the area behind the sternum and between the
lungs .
Q13: Which lymphatic duct is responsible for the drainage of
the right lower extremity?
Answer: Thoracic duct
Rationale: The thoracic duct drains lymph from the entire lower
body and the left upper quadrant. The right lymphatic duct only
drains the right upper quadrant. Therefore, the lower right
extremity drains into the thoracic duct .
Q14: What is the largest lymphatic organ?
Answer: Spleen
