HESI Practice Test: Video 4 Answers (25 Questions)

Question 1

Which gland regulates metabolism by secreting thyroxine?

Accepted Answer

Thyroid gland

Answer

The thyroid gland secretes thyroxine (T4), which controls metabolic rate.

Question 2

Which layer of the skin contains melanocytes responsible for producing pigment?

Accepted Answer

Stratum basale

Answer

Melanocytes are located in the stratum basale (deepest layer of the epidermis), where they produce melanin and transfer it to surrounding keratinocytes to provide skin color and UV protection.

Question 3

Which part of the brain is primarily responsible for coordinating voluntary muscle movements and maintaining balance?

Accepted Answer

Cerebellum

Answer

The cerebellum, located at the back and bottom of the brain, coordinates fine motor movements, balance, and posture by integrating sensory input and adjusting motor output for smooth, precise actions.

Question 4

What type of muscle tissue is found in the walls of blood vessels?

Accepted Answer

Smooth muscle

Answer

Smooth muscle lines hollow organs and vessels and contracts involuntarily.

Question 5

How many types of basic tissues does a human have?

Accepted Answer

4

Answer

The human body is organized into four fundamental types of tissues, each with specialized structures and functions. These are epithelial tissue (for covering and lining), connective tissue (for support and binding), muscle tissue (for movement), and nervous tissue (for communication and control). These basic tissues combine to form organs and organ systems.

HESI (ATI) Practice Test

HESI (ATI) Practice Test

HESI Practice Test: Video 4 Answers (25 Questions)