WGU D312 Anatomy & Physiology I | OA |
Objective Assessment | 287 Questions and Answers
| 2026 Update | 100% Correct.
1. Which feedback mechanism is most commonly used to
maintain homeostasis?
a) Positive feedback
b) Negative feedback
c) Feed-forward control
d) Homeostatic imbalance
Answer: b) Negative feedback
Rationale: Negative feedback reverses a change to
maintain set point (e.g., body temperature, blood
glucose). Positive feedback amplifies change (e.g.,
childbirth).
2. The maintenance of a stable internal environment is
called:
a) Metabolism
1
,b) Homeostasis
c) Adaptation
d) Responsiveness
Answer: b) Homeostasis
Rationale: Homeostasis refers to dynamic equilibrium in
internal conditions despite external changes.
3. Which body cavity contains the brain?
a) Thoracic
b) Abdominal
c) Cranial
d) Pelvic
Answer: c) Cranial
Rationale: The cranial cavity encloses the brain; the
vertebral cavity encloses the spinal cord.
4. The pleural cavity is part of which larger cavity?
a) Abdominopelvic
b) Thoracic
c) Dorsal
2
,d) Cranial
Answer: b) Thoracic
Rationale: The thoracic cavity contains the pleural (lungs)
and pericardial (heart) cavities.
5. A section dividing the body into superior and inferior
portions is:
a) Sagittal
b) Frontal
c) Transverse
d) Oblique
Answer: c) Transverse
Rationale: Transverse (horizontal) plane makes
top/bottom divisions. Frontal = anterior/posterior;
Sagittal = left/right.
6. Which organ is in the right upper quadrant (RUQ)?
a) Spleen
b) Appendix
c) Liver
3
, d) Stomach
Answer: c) Liver
Rationale: RUQ contains liver, gallbladder, right kidney.
Spleen and stomach are LUQ; appendix is RLQ.
7. Which term means "farther from the point of
attachment"?
a) Proximal
b) Distal
c) Medial
d) Superficial
Answer: b) Distal
Rationale: Distal = away from trunk/attachment;
proximal = closer.
8. The serous membrane lining the abdominal cavity wall
is the:
a) Visceral peritoneum
b) Parietal peritoneum
c) Visceral pleura
4
Objective Assessment | 287 Questions and Answers
| 2026 Update | 100% Correct.
1. Which feedback mechanism is most commonly used to
maintain homeostasis?
a) Positive feedback
b) Negative feedback
c) Feed-forward control
d) Homeostatic imbalance
Answer: b) Negative feedback
Rationale: Negative feedback reverses a change to
maintain set point (e.g., body temperature, blood
glucose). Positive feedback amplifies change (e.g.,
childbirth).
2. The maintenance of a stable internal environment is
called:
a) Metabolism
1
,b) Homeostasis
c) Adaptation
d) Responsiveness
Answer: b) Homeostasis
Rationale: Homeostasis refers to dynamic equilibrium in
internal conditions despite external changes.
3. Which body cavity contains the brain?
a) Thoracic
b) Abdominal
c) Cranial
d) Pelvic
Answer: c) Cranial
Rationale: The cranial cavity encloses the brain; the
vertebral cavity encloses the spinal cord.
4. The pleural cavity is part of which larger cavity?
a) Abdominopelvic
b) Thoracic
c) Dorsal
2
,d) Cranial
Answer: b) Thoracic
Rationale: The thoracic cavity contains the pleural (lungs)
and pericardial (heart) cavities.
5. A section dividing the body into superior and inferior
portions is:
a) Sagittal
b) Frontal
c) Transverse
d) Oblique
Answer: c) Transverse
Rationale: Transverse (horizontal) plane makes
top/bottom divisions. Frontal = anterior/posterior;
Sagittal = left/right.
6. Which organ is in the right upper quadrant (RUQ)?
a) Spleen
b) Appendix
c) Liver
3
, d) Stomach
Answer: c) Liver
Rationale: RUQ contains liver, gallbladder, right kidney.
Spleen and stomach are LUQ; appendix is RLQ.
7. Which term means "farther from the point of
attachment"?
a) Proximal
b) Distal
c) Medial
d) Superficial
Answer: b) Distal
Rationale: Distal = away from trunk/attachment;
proximal = closer.
8. The serous membrane lining the abdominal cavity wall
is the:
a) Visceral peritoneum
b) Parietal peritoneum
c) Visceral pleura
4
