CCMA Anatomy and Physiology Basics 1

Question 1

Which organ system is responsible for regulating body temperature, sensation, and serving as a barrier against infection?

Accepted Answer

Integumentary system

Answer

The integumentary system (skin, hair, nails, glands) is the body's first line of defense and regulates temperature through sweat and blood vessel dilation.

Question 2

The SA (sinoatrial) node is responsible for which cardiac function?

Accepted Answer

Initiating the electrical impulse that sets the heart rate

Answer

The SA node, located in the right atrium, is the heart's natural pacemaker and generates the electrical impulse that initiates each heartbeat.

Question 3

Which plane divides the body into right and left halves?

Accepted Answer

Sagittal plane

Answer

The sagittal plane divides the body into right and left sections; the midsagittal plane divides it into equal halves.

Question 4

What is the name of the large muscle responsible for breathing that separates the thoracic and abdominal cavities?

Accepted Answer

Diaphragm

Answer

The diaphragm contracts and flattens during inhalation, increasing thoracic volume and drawing air into the lungs.

Question 5

The medical term for the front surface of the body is:

Accepted Answer

Answer

Anterior (also called ventral) refers to the front-facing surface of the body.

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA Anatomy and Physiology Basics 1