HESI A2 Anatomy and Physiology Practice Exam

Correct Answer: A

Rationale: The correct answer is A: iris and lens. The anterior chamber of the eye is the space between the cornea (in front) and the iris and lens (behind). The cornea covers the front of the eye, and the iris is the colored part of the eye that controls the size of the pupil. The lens is located behind the iris and helps to focus light onto the retina at the back of the eye. Therefore, the correct placement of the anterior chamber is between the iris and lens. The other choices are incorrect because the lens and retina are not adjacent to each other in the eye, the cornea and iris are both in front of the anterior chamber, and the retina and optic nerve are located at the back of the eye, behind the lens.

Correct Answer: B

Rationale: The correct answer is B: proximal. The shoulder is proximal to the elbow because "proximal" refers to a structure being closer to the point of attachment or origin, which is the case for the shoulder in relation to the elbow. The other choices are incorrect because: A: Posterior refers to the back side, not the proximity. C: Distal means farther away from the point of attachment, which is opposite to the relationship between the shoulder and elbow. D: Medial refers to being closer to the midline of the body, not the point of attachment in this context.

Correct Answer: D

Rationale: Failed to generate a rationale after 5 retries.

Correct Answer: C

Rationale: The correct answer is C: Tofu. Tofu, made from soybeans, is a complete protein source, providing all essential amino acids needed by the body. It is a significant protein source for individuals on a vegan diet. Eggs (A) and fish (B) are animal products and not suitable for a vegan diet. Leafy greens (D) are not a significant source of protein compared to tofu and may not provide enough protein for a person following a vegan diet.

Correct Answer: A

Rationale: The correct answer is A because the gallbladder is located in the upper right quadrant of the abdomen. When a gallstone blocks the bile duct, it can cause pain in this area due to the distension and inflammation of the gallbladder. Choices B, C, and D are incorrect because gallstone pain is typically felt in the upper right quadrant where the gallbladder is located, not in the lower right quadrant, umbilical region, or along the pelvic girdle.