The dorsal body cavity contains which of the following organs?

Correct Answer: B

Rationale: The dorsal cavity encircles the brain and spinal cord, protecting the nervous system's core along the back. Nurses monitor this for trauma like concussions excluding ventral organs like the heart or kidneys. This focus distinguishes it from other cavities, ensuring care targets the neurological backbone effectively.

Correct Answer: D

Rationale: In childbirth, cervical stretching triggers oxytocin release, intensifying contractions and further stretching the cervix. This escalating cycle accelerates delivery, a classic amplification process. Nurses monitor this to ensure progression, intervening if it stalls, as it contrasts with stabilizing mechanisms. The hormone surge and stretch reinforce each other, driving labor to completion, highlighting a rare but critical physiological escalation essential for birth.

Correct Answer: A

Rationale: In anatomical position (standing, palms forward), the thumb is lateral, on the hand's outer side relative to the midline, not medial (B, inner), proximal (C, closer to attachment), or superficial (D, surface). Its lateral placement (radius side) aids opposition, a key human trait, making A correct.

Correct Answer: A

Rationale: The ventral cavity (front) includes pleural (B, lungs), thoracic, pelvic, and abdominal , but not spinal (A, dorsal, with cranial). Anatomically, ventral splits into thoracic and abdominopelvic; spinal lies posterior, protecting the cord, making A the exception.

Correct Answer: B

Rationale: The diaphragm separates thoracic (chest) from abdominopelvic cavities, a muscular dome, unlike mediastinum (A, chest divider), abdominal wall, sternum, or nonexistent septum. Anatomically, it regulates breathing, marking cavity boundaries, making E correct.