The calf is ___ to the knee.

Correct Answer: B

Rationale: The calf is distal (farther from attachment) to the knee, which is proximal (closer to thigh attachment). It's not deep (A, depth-related), proximal, or both. Distal aligns with anatomy's limb terminology, marking the calf below the knee.

Correct Answer: C

Rationale: Axillary refers to the armpit, not acromial (A, shoulder), brachial (B, arm), or sternal (D, chest). Anatomical terms like axillary pinpoint regions, vital for procedures like lymph node checks, confirming C.

Correct Answer: D

Rationale: The sagittal plane divides left and right (e.g., midsagittal at midline), unlike coronal/frontal (A, B, front-back), or transverse (C, top-bottom). Anatomical planes standardize sectioning, vital for imaging like MRI, confirming D.

Correct Answer: A

Rationale: The diaphragm, a muscular sheet, separates thoracic (chest) and abdominopelvic cavities, unlike mediastinum (B, chest divider), sternum (C, breastbone), or ventral cavity (D, broader). Anatomically, it regulates breathing and cavity distinction, confirming A.

Correct Answer: B

Rationale: The mediastinum, a central thoracic region, contains the heart, thymus, and trachea, but not lungs, which are in pleural cavities. Anatomically, this midline space organizes chest structures, excluding lateral lungs.