Which type of tissue covers body surfaces and lines body cavities?

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: 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.

Correct Answer: B

Rationale: The correct order is atom (smallest), molecule, organelle, cell, tissue, organ, organ system, organism (most complex). B aligns with this, starting with atoms forming molecules (e.g., water), then organelles (e.g., ribosomes), cells, tissues (e.g., muscle), organs (e.g., heart), systems (e.g., circulatory), and organisms (e.g., human). Other options misplace levels, disrupting anatomy's logical progression.

Correct Answer: C

Rationale: The nose is medial (closer to midline) to the ears, which are lateral (sides of head). It's not lateral, anterior (B, though forward of ears), or both. Medial reflects anatomy's midline reference, accurately positioning the nose centrally on the face.