Question 1

Which of the following correctly lists the major structural levels of organization in the human body from simplest to most complex?

Accepted Answer

Chemical, cellular, tissue, organ, organ system, organism

Question 2

A patient is lying face up with arms at their sides and palms facing forward. Which anatomical position is this describing?

Accepted Answer

Supine anatomical position

Question 3

Which directional term best describes the relationship of the heart to the lungs?

Accepted Answer

Medial

Question 4

A surgeon makes a cut that divides the body into anterior and posterior sections. Which anatomical plane is this?

Accepted Answer

Frontal (coronal) plane

Question 5

Which organ system is primarily responsible for transporting nutrients, gases, and wastes throughout the body?

Accepted Answer

Cardiovascular system

Question 6

Which of the following best describes the principle of homeostasis?

Accepted Answer

The maintenance of a stable internal environment despite external changes

Question 7

In a negative feedback loop, which component detects changes in a variable and sends information to the control center?

Accepted Answer

Receptor

Question 8

Which of the following is an example of positive feedback in the human body?

Accepted Answer

Release of oxytocin during childbirth to intensify uterine contractions

Question 9

Which gradient is responsible for the movement of sodium ions into a neuron during an action potential?

Accepted Answer

Electrochemical gradient

Question 10

Which body cavity contains the heart and lungs?

Accepted Answer

Thoracic cavity

Question 11

A patient complains of pain in the right lower quadrant of the abdominopelvic region. Which organ is most likely involved?

Accepted Answer

Appendix

Question 12

Which serous membrane directly covers the surface of the lungs?

Accepted Answer

Visceral pleura

Question 13

Which of the following best explains why negative feedback is more common than positive feedback in maintaining homeostasis?

Accepted Answer

Negative feedback opposes changes, keeping variables within a normal range

Question 14

Which of the following best illustrates the relationship between structure and function?

Accepted Answer

The thin walls of alveoli allow for efficient gas exchange

Question 15

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Production of movement

Question 16

A patient has a cut on the anterior surface of the antebrachial region. Where is the injury located?

Accepted Answer

Front of the forearm

Question 17

Which of the following best describes how cells communicate in a multicellular organism?

Accepted Answer

By releasing chemical messengers that bind to receptors on target cells

Question 18

Which of the following is a correct description of the transverse plane?

Accepted Answer

Divides the body into superior and inferior portions

Question 19

Which organ system is responsible for producing hormones that regulate metabolism, growth, and reproduction?

Accepted Answer

Endocrine system

Question 20

A patient is experiencing difficulty breathing due to fluid accumulation in the pleural cavity. Which serous membrane is directly affected?

Accepted Answer

Parietal pleura

Introduction to Anatomy & Physiology: Structural Organization, Terminology, and Homeostasis

Study Guide - Practice Questions