Question 1

Which of the following best describes the principle of homeostasis in the human body?

Accepted Answer

The maintenance of a constant internal environment despite external changes.

Question 2

A patient is lying face up on an examination table. What is the correct anatomical term for this position?

Accepted Answer

Supine

Question 3

Which directional term describes a structure that is farther from the point of attachment to the trunk than another structure?

Accepted Answer

Distal

Question 4

Which body plane divides the body into anterior and posterior sections?

Accepted Answer

Coronal (frontal)

Question 5

Which of the following is NOT a characteristic of living things?

Accepted Answer

Inability to respond to stimuli

Question 6

Which of the following best illustrates negative feedback in homeostasis?

Accepted Answer

Regulation of body temperature returning to normal after a fever

Question 7

Which organ is found in the thoracic cavity?

Accepted Answer

Heart

Question 8

A serous membrane differs from a mucous membrane in that:

Accepted Answer

It covers organs and lines closed body cavities.

Question 9

Which structural level of the body is defined as a group of similar cells and their extracellular matrix performing a common function?

Accepted Answer

Tissue

Question 10

If a physician is examining a patient’s abdomen using the quadrant system, which organ would most likely be found in the right upper quadrant?

Accepted Answer

Liver

Question 11

Which of the following is an example of positive feedback?

Accepted Answer

Release of oxytocin to intensify uterine contractions during childbirth

Question 12

Which directional term would best describe the nose in relation to the ears?

Accepted Answer

Medial

Question 13

Which of the following best describes the function of the mesentery?

Accepted Answer

It anchors organs to the body wall and provides a pathway for nerves and vessels.

Question 14

Which of the following is the correct order of structural levels in the human body from smallest to largest?

Accepted Answer

Chemical, cell, tissue, organ, organ system, organism

Question 15

A transverse plane divides the body into which of the following sections?

Accepted Answer

Superior and inferior

Question 16

Which of the following is a real-life example of homeostasis involving the respiratory system?

Accepted Answer

Increasing breathing rate to maintain blood pH during exercise

Question 17

Which of the following best describes the role of a receptor in a negative feedback mechanism?

Accepted Answer

It detects changes in a variable.

Question 18

Which membrane lines cavities that open to the outside of the body?

Accepted Answer

Mucous membrane

Question 19

A patient has a stab wound that penetrates the parietal pleura. Which cavity has been entered?

Accepted Answer

Pleural cavity

Question 20

Which of the following equations best represents the concept of homeostasis as a dynamic equilibrium?

Accepted Answer

$$Set\ point \pm Normal\ range = Homeostasis$$

Introduction to Human Anatomy and Physiology: Organization, Homeostasis, and Body Structure

Study Guide - Practice Questions