Question 1

Which of the following best describes the process of hemopoiesis and its regulation in the adult human body?

Accepted Answer

Hemopoiesis occurs primarily in the red bone marrow, where hemocytoblasts differentiate into myeloid and lymphoid lineages under the influence of erythropoietin and colony stimulating factors.

Question 2

A patient with blood type AB negative requires a transfusion. Which of the following blood types is compatible for transfusion?

Accepted Answer

AB negative

Question 3

During the cardiac cycle, which event corresponds to the opening of the mitral (bicuspid) valve?

Accepted Answer

Atrial systole, when atrial pressure exceeds ventricular pressure

Question 4

Which equation correctly represents cardiac output ($$CO) $$and its relationship to stroke volume ($$SV) $$and heart rate ($$HR$$)?

Accepted Answer

$$CO = SV 	imes HR$$

Question 5

A patient experiences anaphylactic shock. Which homeostatic response is most likely to occur?

Accepted Answer

Widespread vasodilation and increased capillary permeability, leading to decreased blood pressure

Question 6

Which of the following best describes the function of the lymphatic system?

Accepted Answer

Returning interstitial fluid to the bloodstream, providing immune defense, and absorbing lipids from the digestive tract

Question 7

Which of the following is a property unique to adaptive immunity compared to innate immunity?

Accepted Answer

Memory, allowing for a faster and stronger response upon subsequent exposure to the same antigen

Question 8

Which equation represents the relationship between pressure ($$P$$), flow ($$Q$$), and resistance ($$R) in $$blood vessels?

Accepted Answer

$$Q = \dfrac{P}{R}$$

Question 9

Which of the following mechanisms is primarily responsible for the exchange of gases in the alveoli during external respiration?

Accepted Answer

Simple diffusion driven by partial pressure gradients

Question 10

A patient with chronic obstructive pulmonary disease (COPD) has decreased alveolar surface area. Which respiratory volume is most likely to be affected?

Accepted Answer

Vital capacity

Question 11

Which hormone increases water reabsorption in the collecting ducts of the nephron, thereby decreasing urine output?

Accepted Answer

Antidiuretic hormone (ADH)

Question 12

Which equation best represents the calculation of glomerular filtration rate ($$GFR) $$based on net filtration pressure ($$NFP) $$and filtration coefficient ($$K_f$$)?

Accepted Answer

$$GFR = K_f 	imes NFP$$

Question 13

Which of the following is a consequence of hyperkalemia and the body's response to it?

Accepted Answer

Increased muscle excitability and secretion of aldosterone to promote potassium excretion

Question 14

Which buffer system is most dominant in the extracellular fluid for maintaining acid-base balance?

Accepted Answer

Bicarbonate buffer system

Question 15

Which of the following best describes the process of gluconeogenesis?

Accepted Answer

Formation of glucose from non-carbohydrate sources such as amino acids and glycerol

Question 16

During the absorptive state, which hormone is primarily responsible for promoting glucose uptake and storage?

Accepted Answer

Insulin

Question 17

Which anatomical structure in the male reproductive system is responsible for the production of spermatozoa?

Accepted Answer

Seminiferous tubules

Question 18

Which phase of the uterine cycle is characterized by thickening of the endometrium under the influence of estrogen?

Accepted Answer

Proliferative phase

Question 19

Which event occurs during the dilation stage of labor?

Accepted Answer

Cervical effacement and opening to allow passage of the fetus

Anatomy & Physiology II: Comprehensive Final Exam Study Guide

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