Question 1

Which of the following best describes the relationship between anatomy and physiology?

Accepted Answer

Anatomy is the study of body structures, and physiology is the study of how those structures function together.

Question 2

Arrange the following levels of organization from simplest to most complex: tissue, organ, chemical, cellular, organ system, organismal.

Accepted Answer

Chemical, cellular, tissue, organ, organ system, organismal

Question 3

A patient has a wound on the anterior, distal region of the upper limb. Which of the following best describes the location?

Accepted Answer

The wound is on the front of the forearm near the wrist.

Question 4

Which body cavity contains the heart and lungs?

Accepted Answer

Thoracic cavity

Question 5

Which plane divides the body into superior and inferior parts?

Accepted Answer

Transverse (cross) plane

Question 6

Which element is the most abundant in the human body by mass?

Accepted Answer

Oxygen

Question 7

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 8

Water is considered a 'universal solvent' due to which property?

Accepted Answer

Its ability to form hydrogen bonds

Question 9

Which of the following best explains why water has a high surface tension?

Accepted Answer

Hydrogen bonds between water molecules create cohesion at the surface.

Question 10

Which organelle is responsible for producing ATP through cellular respiration?

Accepted Answer

Mitochondrion

Question 11

A tissue sample shows cells with a single layer of flat cells lining the air sacs of the lungs. Which tissue type is this?

Accepted Answer

Simple squamous epithelium

Question 12

Which type of connective tissue is the most rigid and functions to protect and support the body?

Accepted Answer

Bone (osseous tissue)

Question 13

Which of the following is a function of the integumentary system?

Accepted Answer

Regulation of body temperature

Question 14

Which protein is responsible for the waterproof and protective properties of the epidermis?

Accepted Answer

Keratin

Question 15

A burn that destroys the entire epidermis and dermis, resulting in a gray-white or charred appearance, is classified as:

Accepted Answer

Third-degree burn

Question 16

Which of the following best describes the function of gap junctions in tissues?

Accepted Answer

They allow direct communication between adjacent cells.

Question 17

Which of the following is a characteristic of smooth muscle tissue?

Accepted Answer

It is involuntarily controlled and found in the walls of hollow organs.

Question 18

Which layer of the epidermis is responsible for producing new skin cells and contains melanocytes?

Accepted Answer

Stratum basale

Question 19

A patient presents with a suspicious skin lesion. According to the ABCDE rule for melanoma, which characteristic is most concerning?

Accepted Answer

A lesion with irregular borders and multiple colors

Question 20

Which of the following best explains why cardiac muscle tissue heals poorly after injury?

Accepted Answer

It is replaced largely with scar tissue due to limited regenerative capacity.

Anatomy & Physiology Unit 1–4 Exam Review: Human Body Orientation, Chemistry, Cells & Tissues, Integumentary System

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