Which blood vessels carry oxygenated blood away from the heart to the body tissues?

Correct Answer: B

Rationale: Arteries transport oxygen-rich blood from the heart to tissues, powering cellular function. Unlike veins or capillaries, they're built for pressure, driving circulation. Nurses track arterial health like in hypertension ensuring oxygen delivery supports bodily vitality.

Correct Answer: A

Rationale: Epithelial tissue blankets surfaces and cavities like skin or gut lining protecting and absorbing. Unlike supportive or signaling tissues, it's a barrier and interface. Nurses assess it for breaches like ulcers ensuring its integrity safeguards underlying structures.

Correct Answer: D

Rationale: The humerus spans the upper arm, linking shoulder to elbow, supporting movement. Unlike leg or forearm bones, it's the arm's structural anchor. Clinicians focus here for fractures, ensuring its integrity restores arm function.

Correct Answer: B

Rationale: Villi amplify the small intestine's absorptive surface, capturing nutrients efficiently. Unlike lung or hair structures, they're digestive specialists. Clinicians address them in malabsorption like celiac disease ensuring nutrition fuels the body.

Correct Answer: D

Rationale: Anatomy studies both the structure of body parts and their relationships, distinguishing it from physiology, which focuses on function. Option D (A and B only) is correct as it encompasses both aspects. For example, anatomy examines the femur's shape and its articulation with the pelvis, not how it moves (physiology). This dual focus helps understand bodily organization, crucial for medical fields like surgery, where structural knowledge guides intervention.