Question 1

Which of the following best describes the function of Type II alveolar cells in the lungs?

Accepted Answer

They secrete surfactant to reduce surface tension and prevent alveolar collapse.

Question 2

A patient is diagnosed with an obstruction in the trachea. Which of the following would most likely be impaired as a result?

Accepted Answer

The passage of air from the larynx to the bronchi.

Question 3

During inspiration, which of the following changes occurs in the thoracic cavity?

Accepted Answer

Thoracic volume increases and intrapulmonary pressure decreases.

Question 4

Which equation correctly represents the relationship between glomerular filtration rate (GFR), net filtration pressure (NFP), and filtration coefficient (Kf) in the kidneys?

Accepted Answer

$$GFR = K_f 	imes NFP$$

Question 5

A patient with severe dehydration has a high plasma osmolarity. How will this affect antidiuretic hormone (ADH) secretion and urine output?

Accepted Answer

ADH secretion will increase, leading to decreased urine output.

Question 6

Which of the following structures is responsible for the storage and maturation of sperm cells?

Accepted Answer

Epididymis

Question 7

A patient is experiencing metabolic acidosis. Which respiratory compensation would you expect?

Accepted Answer

Increased respiratory rate to decrease $$CO_2$$ levels.

Question 8

Which of the following best describes the countercurrent multiplier mechanism in the nephron?

Accepted Answer

It creates a concentration gradient in the medulla to allow water reabsorption from the collecting duct.

Question 9

Which hormone is primarily responsible for stimulating ovulation in the female reproductive cycle?

Accepted Answer

Luteinizing hormone (LH)

Question 10

A patient has a blockage in the left pulmonary artery. Which of the following will most directly be affected?

Accepted Answer

Blood flow from the right ventricle to the left lung.

Question 11

Which of the following best explains why the scrotum is located outside the body cavity?

Accepted Answer

To maintain a temperature lower than core body temperature for optimal sperm production.

Question 12

Which of the following equations correctly represents the relationship between minute ventilation ($$V_E$$), tidal volume ($$V_T$$), and respiratory rate ($$f$$)?

Accepted Answer

$$V_E = V_T 	imes f$$

Question 13

Which of the following is a function of the prostate gland?

Accepted Answer

It secretes a fluid that enhances sperm motility and viability.

Question 14

A patient with damage to the external urethral sphincter would most likely experience which of the following?

Accepted Answer

Loss of voluntary control over urination.

Question 15

Which of the following best describes the role of surfactant in the lungs?

Accepted Answer

It reduces surface tension in the alveoli, preventing collapse during exhalation.

Question 16

Which of the following is the correct sequence of structures that urine passes through from the nephron to the external environment?

Accepted Answer

Collecting duct → minor calyx → major calyx → renal pelvis → ureter → bladder → urethra

Question 17

Which of the following best describes the function of the cremaster muscle?

Accepted Answer

It elevates the testes to regulate their temperature.

Question 18

A patient with chronic obstructive pulmonary disease (COPD) has difficulty exhaling air. Which of the following best explains this problem?

Accepted Answer

Loss of elastic recoil in the alveoli increases residual volume.

Question 19

Which of the following is the primary site of fertilization in the female reproductive tract?

Accepted Answer

Uterine tube (fallopian tube)

Question 20

Which of the following best describes the function of the juxtaglomerular apparatus in the kidney?

Accepted Answer

It regulates blood pressure and glomerular filtration rate by releasing renin.

Anatomy & Physiology Study Guide: Respiratory, Urinary, and Reproductive Systems

Study Guide - Practice Questions

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