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, cell, tissue, organ, organ system, organism

Question 2

A patient is lying face up on an examination table with their palms facing forward and feet slightly apart. Which anatomical position is this describing?

Accepted Answer

Anatomical position

Question 3

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

Accepted Answer

The heart is medial to the lungs.

Question 4

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

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 function of serous membranes?

Accepted Answer

They line and lubricate body cavities to reduce friction between organs.

Question 7

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

Accepted Answer

Appendix

Question 8

Which of the following is an example of a negative feedback mechanism in the human body?

Accepted Answer

Regulation of blood glucose by insulin

Question 9

Which component of a feedback loop detects changes in a regulated variable?

Accepted Answer

Receptor

Question 10

Why is negative feedback the most common mechanism for maintaining homeostasis in the body?

Accepted Answer

It reverses deviations from a set point to maintain stability.

Question 11

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

Accepted Answer

The thin walls of alveoli in the lungs facilitate rapid gas exchange.

Question 12

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

Accepted Answer

Electrochemical gradient

Question 13

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

Accepted Answer

By releasing chemical messengers such as hormones and neurotransmitters

Question 14

A patient is diagnosed with pericarditis, an inflammation of the serous membrane surrounding the heart. Which serous membrane is affected?

Accepted Answer

Pericardium

Question 15

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

Accepted Answer

Production of movement

Question 16

A cross-section of the brain is made along the transverse plane. Which of the following best describes the resulting sections?

Accepted Answer

Superior and inferior portions

Question 17

Which organ is located in the dorsal body cavity?

Accepted Answer

Brain

Question 18

Which of the following best describes the sagittal plane?

Accepted Answer

Divides the body into right and left portions

Question 19

Which of the following is an example of a positive feedback mechanism?

Accepted Answer

Blood clotting cascade

Question 20

A patient has a tumor in the left hypochondriac region. Which organ is most likely affected?

Accepted Answer

Spleen

Introduction to Anatomy & Physiology: Structural Organization, Terminology, and Core Principles

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