Question 1

Which of the following best describes the primary function of the circulatory system in the human body?

Accepted Answer

To transport nutrients, gases, and wastes throughout the body

Question 2

A patient presents with difficulty breathing and chest pain. Which organ system is most likely compromised, and what is its primary function?

Accepted Answer

Respiratory system; exchange of oxygen and carbon dioxide

Question 3

Which anatomical term describes a structure that is closer to the head than another structure?

Accepted Answer

Superior

Question 4

During exercise, the heart rate increases to supply more oxygen to muscles. Which two organ systems are primarily involved in this response?

Accepted Answer

Respiratory and circulatory systems

Question 5

Which equation correctly represents the calculation of cardiac output ($CO$) in the human body?

Accepted Answer

$CO = HR 	imes SV$

Question 6

A person has a stroke volume ($SV$) of 70 mL and a heart rate ($HR$) of 80 beats per minute. What is their cardiac output ($CO$)?

Accepted Answer

$CO = 5600 	ext{ mL/min}$

Question 7

Which of the following best explains the role of the kidneys in homeostasis?

Accepted Answer

They filter blood to remove wastes and regulate water, electrolyte, and acid-base balance

Question 8

A patient is unable to produce sufficient stomach acid. Which digestive process will be most affected?

Accepted Answer

Chemical digestion of proteins

Question 9

Which hormone is primarily responsible for regulating blood glucose levels after a meal?

Accepted Answer

Insulin

Question 10

Which of the following scenarios best illustrates the concept of negative feedback in physiology?

Accepted Answer

An increase in blood glucose stimulates insulin release, which lowers blood glucose

Question 11

Which anatomical plane divides the body into right and left halves?

Accepted Answer

Sagittal plane

Question 12

A patient with kidney failure is unable to regulate potassium ($K^+$) levels. What is a potential consequence?

Accepted Answer

Impaired nerve and muscle function

Question 13

Which process occurs at the glomerulus in the nephron?

Accepted Answer

Filtration of blood plasma

Question 14

Which equation best represents the calculation of body mass index ($BMI$)?

Accepted Answer

$BMI = \frac{weight\ (kg)}{height^2\ (m^2)}$

Question 15

A person weighs 70 kg and is 1.75 m tall. What is their BMI?

Accepted Answer

$BMI = 22.86$

Question 16

Which of the following is a function of the lymphatic system?

Accepted Answer

Return of excess tissue fluid to the bloodstream and immune defense

Question 17

Which organ system is primarily responsible for the production of gametes?

Accepted Answer

Reproductive system

Question 18

A patient has a blood pH of 7.1. Which organ system is most likely involved in correcting this imbalance?

Accepted Answer

Urinary system

Question 19

Which of the following best describes the process of glomerular filtration rate ($GFR$) regulation in the kidneys?

Accepted Answer

GFR is regulated by changes in blood pressure and the constriction or dilation of afferent and efferent arterioles

Question 20

Which of the following scenarios demonstrates the integration of the nervous and endocrine systems in maintaining homeostasis?

Accepted Answer

The hypothalamus detects changes in body temperature and signals the pituitary to release hormones

Anatomy and Physiology II (KN 231) – Course Overview and Study Guide

Study Guide - Practice Questions