The gallbladder is part of the

Correct Answer: C

Rationale: The gallbladder is part of the digestive system (C), storing bile. It’s not endocrine (A), urinary (B), or nervous (D).

Correct Answer: D

Rationale: The ovaries are in the reproductive system (D), producing eggs and hormones. Not skeletal (A), nervous (B), or lymphatic (C).

Correct Answer: A

Rationale: The corpus callosum connects the left and right brain (A). Not skeletal-neural (B), brain-spinal (C, via brainstem), or thalamus-hypothalamus (D).

Correct Answer: D

Rationale: Bile enters the duodenum (D) via the bile duct. Cecum (A), jejunum (B), and ileum (C) are later in the tract.

Correct Answer: C

Rationale: The vulva (C) is primary female external genitalia. Gonads (A, ovaries) are internal, testes (B) are male, and uterus (D) is internal.