The small, finger-like projections in the small intestine that increase its surface area for nutrient absorption are called:

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: 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.

Correct Answer: B

Rationale: The pinky is lateral (farther from midline) to the thumb, which is more medial on the hand. It's not distal (A, farther from attachment), medial, or proximal (D, closer to attachment). Lateral fits anatomy's hand orientation in anatomical position.

Correct Answer: A

Rationale: Oral denotes the mouth, unlike mental (B, chin), buccal (C, cheek), or otic (D, ear). This term's specificity in anatomy ensures clear communication, such as in dental contexts, making A correct.