Anatomy HESI A2 - Nurselytic

Correct Answer: C

Rationale: The correct answer is C: The lymphatic system. Antibodies are produced by specialized white blood cells called B-lymphocytes (or B cells) in response to foreign substances known as antigens. The lymphatic system includes lymph nodes, lymphatic vessels, tonsils, thymus, and spleen, which work together to produce and store antibodies to help the body fight off infections and diseases.


Choice A, the endocrine system, is incorrect because it is responsible for hormone regulation, not antibody production.


Choice B, the digestive system, is incorrect because its main function is to break down food and absorb nutrients, not produce antibodies.


Choice D, the nervous system, is incorrect as it is responsible for transmitting signals throughout the body and coordinating body functions, not generating antibodies.

Correct Answer: B

Rationale: Schwann cells are a type of neuroglia found in the peripheral nervous system. They are responsible for producing the myelin sheath around axons of neurons, which helps with the conduction of nerve impulses.
Therefore, Schwann cells are typically found in the nervous system.

Choices A, C, and D are incorrect because Schwann cells are specifically associated with the nervous system and are not found in the digestive, skeletal, or muscular systems.

Correct Answer: D

Rationale: The correct answer is D: reproductive system. The ovaries are essential organs of the female reproductive system. They play a vital role in producing eggs and secreting hormones like estrogen and progesterone. The skeletal system (choice
A) consists of bones and tissues that support the body, the nervous system (choice
B) controls body functions and responses, and the lymphatic system (choice
C) helps the body fight off infections.
Therefore, the ovaries belong to the reproductive system.

Correct Answer: D

Rationale: A common finding in a whiplash injury is a traumatic injury to ligaments. Whiplash occurs due to sudden hyperextension and hyperflexion of the neck, leading to strain or tearing of ligaments in the neck. This can manifest as neck pain, stiffness, and limited range of motion. While other complications like cardiopulmonary problems, side-to-side spinal curvature, or eventual herniation of discs are not typically associated with whiplash injuries.

Correct Answer: D

Rationale: The mitral valve, also known as the bicuspid valve, separates the left atrium and the left ventricle of the heart. Its primary function is to prevent the backflow of blood from the left ventricle to the left atrium during the heart's contraction.
Therefore, option D, 'Left atrium and left ventricle,' is the correct answer.

Choices A, B, and C are incorrect because they do not represent the parts separated by the mitral valve.