WGU D312 ANATOMY AND PHYSIOLOGY 1 EXAM.

WGU D312 ANATOMY AND PHYSIOLOGY
1 EXAM
Objective Assessment (OA) | 150 Questions with Verified Answers
2026 Update | Graded A+ | Complete Practice Test Bank




SECTION 1: ANATOMICAL TERMINOLOGY & BODY ORGANIZATION
Questions 1–20




Question 1

Which plane divides the body into top and bottom sections?

A) Sagittal plane
B) Coronal plane
C) Transverse plane
D) Midsagittal plane

Correct answer: C

Rationale: The transverse plane (horizontal plane) divides the body into superior (top) and
inferior (bottom) sections. The coronal plane divides into front and back; the sagittal plane
divides into left and right .




Question 2

Which directional term means "toward the head"?

A) Caudal
B) Cephalic
C) Ventral
D) Distal

Correct answer: B

,Rationale: Cephalic means toward the head, which is the same as superior for humans. Caudal
means toward the tail; ventral means toward the belly; distal means farther from the trunk .




Question 3

The term "proximal" means:

A) Toward the midline
B) Away from the surface
C) Closer to the trunk or point of origin
D) Toward the back

Correct answer: C

Rationale: Proximal indicates a structure closer to the trunk or the point of origin of a limb. Distal
is the opposite; medial means toward the midline .




Question 4

Which cavity contains the brain?

A) Vertebral cavity
B) Thoracic cavity
C) Cranial cavity
D) Abdominal cavity

Correct answer: C

Rationale: The cranial cavity is enclosed by the skull and contains the brain. The vertebral cavity
contains the spinal cord; the thoracic cavity contains the heart and lungs .




Question 5

What does the coronal plane divide the body into?

A) Top and bottom sections
B) Left and right sections
C) Front and back sections

,D) Diagonal sections

Correct answer: C

Rationale: The coronal (frontal) plane is a vertical plane that divides the body into anterior (front)
and posterior (back) sections .




Question 6

The term "caudal" means:

A) Toward the head
B) Toward the tail or lower part of the body
C) Toward the belly
D) Toward the back

Correct answer: B

Rationale: Caudal means toward the tail or lower part of the body. In humans, this refers to a
position closer to the feet or the lower end of the spine .




Question 7

What structure separates the thoracic cavity from the abdominal cavity?

A) Mediastinum
B) Diaphragm
C) Rib cage
D) Peritoneum

Correct answer: B

Rationale: The diaphragm is a muscular structure that separates the thoracic cavity (containing
the heart and lungs) from the abdominal cavity (containing digestive organs) .




Question 8

What is the anatomical term for the thigh region?

, A) Crural
B) Femoral
C) Brachial
D) Coxal

Correct answer: B

Rationale: The femoral region refers to the thigh. Crural refers to the lower leg; brachial refers to
the arm; coxal refers to the hip .




Question 9

The term "ventral" means:

A) Toward the back
B) Toward the head
C) Toward the belly
D) Toward the tail

Correct answer: C

Rationale: Ventral means toward the belly or front of the body, which is the same as anterior.
Dorsal means toward the back .




Question 10

Which quadrant contains the left lobe of the liver, stomach, pancreas, and portions of the small
and large intestines?

A) Right upper quadrant (RUQ)
B) Left upper quadrant (LUQ)
C) Right lower quadrant (RLQ)
D) Left lower quadrant (LLQ)

Correct answer: B

Rationale: The left upper quadrant includes the left lobe of the liver, stomach, pancreas, and
portions of the small and large intestines .