Question 1

Which of the following correctly lists the levels of organization in the human body from simplest to most complex?

Accepted Answer

Atom, molecule, cell, tissue, organ, organ system, organism

Question 2

A patient is lying face up on an examination table with their palms facing forward. This position is best described as:

Accepted Answer

Supine

Question 3

Which directional term would best describe the relationship of the heart to the lungs?

Accepted Answer

The heart is medial to the lungs.

Question 4

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

Accepted Answer

Frontal (coronal)

Question 5

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

Accepted Answer

It maintains a stable internal environment despite external changes.

Question 6

Which of the following is NOT one of the four elements that make up 96% of the human body?

Accepted Answer

Calcium

Question 7

In a chemical reaction, which of the following best describes a catalyst?

Accepted Answer

A substance that increases the rate of a reaction without being consumed.

Question 8

Which organic molecule is primarily responsible for storing genetic information?

Accepted Answer

Nucleic acids

Question 9

A tissue sample is observed to have tightly packed cells with little extracellular matrix, forming a protective barrier on the body surface. This tissue is most likely:

Accepted Answer

Epithelial tissue

Question 10

Which type of muscle tissue is both striated and involuntary?

Accepted Answer

Cardiac muscle

Question 11

Which of the following is a function of neuroglia in nervous tissue?

Accepted Answer

Providing structural and metabolic support to neurons

Question 12

Which of the following best describes the function of keratinocytes in the epidermis?

Accepted Answer

Producing keratin to provide strength and waterproofing

Question 13

A patient has a cut that only affects the epidermis. Which of the following layers is most likely to be actively dividing to repair the damage?

Accepted Answer

Stratum basale

Question 14

Which of the following best describes the function of sweat glands in the integumentary system?

Accepted Answer

Regulating body temperature through evaporative cooling

Question 15

A cross-section of the body that divides it into superior and inferior parts is made along which plane?

Accepted Answer

Transverse plane

Question 16

Which of the following best describes the relationship between a reactant and a product in a chemical equation?

Accepted Answer

A reactant is a starting substance that is changed into a product.

Question 17

Which of the following organic molecules is primarily used for long-term energy storage in the body?

Accepted Answer

Lipids

Question 18

A histology slide shows cells embedded in a matrix with fibers and ground substance. This tissue is most likely:

Accepted Answer

Connective tissue

Question 19

Which of the following best describes the function of melanin in the skin?

Accepted Answer

It protects underlying tissues from ultraviolet (UV) radiation.

Question 20

A patient presents with a loss of function in the neurons of the peripheral nervous system. Which of the following symptoms would most likely be observed?

Accepted Answer

Loss of sensation and impaired movement in limbs

Anatomy & Physiology: Foundational Concepts and Systems Overview

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