The sagittal plane divides the human body into:

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: 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.

Correct Answer: A

Rationale: Superior denotes a position closer to the head, aligning with the cephalic direction in anatomical terms. It's used to compare structures like the eyes being superior to the mouth offering a vertical hierarchy. In clinical practice, nurses apply this to locate issues, such as superior lung infections, ensuring precise communication. It contrasts with tailward or front-back terms, anchoring orientation in the body's upright framework for effective care and study.

Correct Answer: A

Rationale: The heart lies below the clavicle, a correct inferior relationship in anatomical terms. This positioning aids clinicians in chest assessments like heart sounds relative to the collarbone. Other pairings misalign: shoulders are proximal to wrist bones, fingers extend beyond hand bones, and eyes sit between eyebrows. Nurses use such relationships to pinpoint locations, ensuring accurate diagnostics and interventions.

Correct Answer: D

Rationale: The dorsal cavity houses the brain and spinal cord, a correct anatomical fact reflecting its back-side role. Nurses target this for neurological care like spinal taps unlike ventral or diaphragmatic separations. Other statements err: the diaphragm divides chest from abdomen, reproductive organs sit partly outside ventral bounds, and the spinal cord isn't abdomino-pelvic. This clarity guides precise health focus.