The posterior cavity is lined by three membranous layers called:

Correct Answer: C

Rationale: The dorsal (posterior) cavity's cranial and vertebral spaces are lined by meninges (dura, arachnoid, pia), not thoracic, mediastinum, or parietal (D, cavity lining type). Meninges protect the brain and spinal cord, a key anatomical feature.

Correct Answer: B

Rationale: Nervous (brain, nerves) and endocrine (hormones) systems coordinate body functions, unlike cardiovascular (A, C, circulation), or respiratory (D, breathing). Anatomy highlights their integrative roles e.g., stress response making B correct.

Correct Answer: C

Rationale: Homeostasis maintains internal stability (e.g., temperature), not hemostasis (A, clotting), regulation (B, broad), or systemic (D, body-wide). Anatomy and physiology emphasize this balance, critical for survival, confirming C.

Correct Answer: A

Rationale: MRI (magnetic resonance) is contraindicated with metal due to magnetic interference, unlike PET (B, positron), X-Ray, or CAT (D, CT). Anatomical imaging safety relies on this distinction, making A correct.

Correct Answer: C

Rationale: Medial, means toward the body's midline e.g., the nose medial to the ears. Lateral is away from midline, proximal closer to attachment, superior above, and inferior below. In anatomical position, medial orients structures centrally, critical for describing symmetry and proximity, like heart medial to lungs, making C accurate.