NCMA Anatomy and Physiology 3

Question 1

Which bony structure encloses and protects the brain?

Accepted Answer

Cranium

Answer

The cranium (skull) is the rigid bony structure that surrounds and protects the brain from physical trauma.

Question 2

What is the normal resting respiratory rate for a healthy adult?

Accepted Answer

12–20 breaths per minute

Answer

A normal adult resting respiratory rate is 12–20 breaths per minute; rates outside this range may indicate a medical concern.

Question 3

Which part of a neuron receives incoming signals from other neurons?

Accepted Answer

Dendrite

Answer

Dendrites are branched extensions of a neuron that receive chemical signals from other neurons and convey them toward the cell body.

Question 4

The term 'homeostasis' refers to which of the following?

Accepted Answer

The body's ability to maintain a stable internal environment

Answer

Homeostasis is the body's self-regulating process that maintains stable internal conditions such as temperature, pH, and glucose levels despite external changes.

Question 5

Which blood type is considered the universal donor for red blood cell transfusions?

Accepted Answer

Type O negative

Answer

Type O negative blood lacks A, B, and Rh antigens on red blood cells, making it compatible with all blood types and usable in emergencies.

NCMA - National Certified Medical Assistant Practice Test

NCMA - National Certified Medical Assistant Practice Test

NCMA Anatomy and Physiology 3