The stomach would lie in the ___ quadrant of the abdominopelvic cavity.

Correct Answer: A

Rationale: The stomach is in the upper left quadrant, below the diaphragm, left of midline, unlike lower left, upper right, or lower right. Quadrant mapping in anatomy pinpoints organs for diagnosis, confirming A.

Correct Answer: B

Rationale: Positive feedback amplifies change (e.g., childbirth contractions), unlike homeostasis (A, stability), negative feedback (C, reversal), or homeothermic (D, temperature). Anatomy highlights this in rare escalating processes, confirming B.

Correct Answer: B

Rationale: The sagittal plane divides the body into left and right portions, as per the document (answer B). This vertical plane runs longitudinally, with the midsagittal plane splitting symmetrically. Unlike transverse (A, C, horizontal), coronal (D, front-back), or cavity-specific divisions, sagittal is key in anatomy for lateral symmetry analysis e.g., comparing left and right brain hemispheres. Its precision aids in imaging and surgical planning, distinguishing it from other planes.

Correct Answer: D

Rationale: The stomach, initiates food breakdown via mechanical churning and secretes gastric juice (acid, enzymes) that kills bacteria. The liver produces bile, heart pumps blood, colon absorbs water, and skin protects. Anatomically, the stomach's acidic environment (pH A.5-C.5) digests and sterilizes, aligning with digestion's start, confirming D.

Correct Answer: A

Rationale: Negative feedback, restores homeostasis by countering deviations e.g., cooling when overheated. Stimulus triggers, sensor detects, positive feedback amplifies (e.g., childbirth), and disease disrupts. Anatomically, negative feedback (thermoregulation) stabilizes variables like temperature, making A the self-correcting mechanism.