Question 1

Which of the following best describes the primary function of the integumentary system?

Accepted Answer

Protection against environmental hazards

Question 2

A patient presents with muscle weakness and fatigue. Laboratory tests reveal low calcium ion concentration in the blood. Which hormone is most likely deficient?

Accepted Answer

Parathyroid hormone (PTH)

Question 3

Which of the following equations correctly represents the Henderson-Hasselbalch equation used to estimate blood pH?

Accepted Answer

$$pH = pK_a + \log_{10} \left( \frac{[$$HCO_3$$^-]}{[H_2CO_3]} \right)$$

Question 4

A person accidentally touches a hot stove and immediately withdraws their hand. Which of the following best describes the neural pathway involved?

Accepted Answer

Somatic reflex arc

Question 5

Which of the following best explains why red blood cells placed in a hypotonic solution swell and may burst?

Accepted Answer

Water moves into the cell by osmosis

Question 6

A patient is diagnosed with Type 1 diabetes mellitus. Which organ is primarily affected, and what is the main physiological problem?

Accepted Answer

Pancreas; insufficient insulin production

Question 7

Which of the following best describes the role of the sarcoplasmic reticulum in skeletal muscle contraction?

Accepted Answer

It stores and releases calcium ions ($$Ca^{2+})$$

Question 8

A patient with chronic hypertension is at increased risk for which of the following cardiovascular complications?

Accepted Answer

Atherosclerosis and left ventricular hypertrophy

Question 9

Which of the following is the correct sequence of events in the transmission of a nerve impulse across a chemical synapse?

Accepted Answer

Action potential arrival, calcium influx, neurotransmitter release, postsynaptic receptor activation

Question 10

Which of the following best describes the function of antidiuretic hormone (ADH) in the urinary system?

Accepted Answer

Increases water reabsorption in the collecting duct

Question 11

A person is breathing rapidly and deeply after strenuous exercise. Which of the following best explains this physiological response?

Accepted Answer

To increase oxygen delivery and remove excess carbon dioxide ($$CO_2)$$

Question 12

Which of the following is a correct description of the Frank-Starling law of the heart?

Accepted Answer

The greater the end-diastolic volume, the greater the force of contraction

Question 13

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

Accepted Answer

Returning interstitial fluid to the bloodstream and immune defense

Question 14

A patient with a deficiency in intrinsic factor will most likely develop which condition?

Accepted Answer

Pernicious anemia

Question 15

Which of the following equations correctly represents cardiac output ($$CO$$)?

Accepted Answer

$$CO = Stroke\ Volume 	imes Heart\ Rate$$

Question 16

A patient is experiencing metabolic acidosis. Which of the following compensatory mechanisms is most likely to occur?

Accepted Answer

Increased respiratory rate to expel $$CO_2$$

Question 17

Which of the following best describes the role of the small intestine in digestion?

Accepted Answer

Absorption of nutrients and chemical digestion

Question 18

A patient with damage to the Broca's area of the brain would most likely experience which of the following symptoms?

Accepted Answer

Difficulty producing speech

Question 19

Which of the following hormones is primarily responsible for stimulating ovulation in the female reproductive cycle?

Accepted Answer

Luteinizing hormone (LH)

Question 20

A patient is unable to absorb fats due to a blockage in the common bile duct. Which vitamin deficiency is most likely to develop?

Accepted Answer

Vitamin D

BIO232 Human Physiology: Course Schedule and Topic Overview

Study Guide - Practice Questions

Study Guide - Flashcards