HESI A2 Anatomy and Physiology Practice Exam

Correct Answer: C

Rationale: The correct answer is C: 26. The human foot consists of 26 bones, including the tarsal bones, metatarsal bones, and phalanges. Understanding human anatomy is crucial for healthcare professionals and students. Choice A (6) is too few for the complexity of the foot structure. Choice B (16) is close but doesn't account for all the bones in the foot. Choice D (36) is too high and likely includes bones from other parts of the body. Identifying the correct number of bones in the foot is essential for proper diagnosis and treatment of foot-related conditions.

Correct Answer: C

Rationale: The correct answer is C: 26. The human foot consists of 26 bones, including the tarsal bones, metatarsal bones, and phalanges. Understanding human anatomy is crucial for healthcare professionals and students. Choice A (6) is too few for the complexity of the foot structure. Choice B (16) is close but doesn't account for all the bones in the foot. Choice D (36) is too high and likely includes bones from other parts of the body. Identifying the correct number of bones in the foot is essential for proper diagnosis and treatment of foot-related conditions.

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.