Quizlet HESI A2 Anatomy and Physiology

Correct Answer: A

Rationale: The correct answer is A: To produce bile. The liver's primary function in the digestive system is to produce bile, which aids in the digestion and absorption of fats. B is incorrect because the liver does not secrete digestive enzymes; that is primarily the role of the pancreas. C is incorrect as the liver does not store glucose; it helps regulate blood glucose levels. D is incorrect because the liver does not store bile; instead, bile is stored in the gallbladder.

Correct Answer: A

Rationale: The correct answer is A: To transmit signals and coordinate body activities. The nervous system is responsible for sending and receiving signals throughout the body to regulate various functions and coordinate activities. This includes sensory perception, motor responses, and communication between different parts of the body. The other choices are incorrect because the immune system (B) fights infections, the endocrine system (C) produces hormones, and the thermoregulatory system (D) regulates body temperature, which are functions separate from the primary role of the nervous system.

Correct Answer: B

Rationale: The correct answer is B: Heart. The heart is not a component of the central nervous system (CNS) as it is part of the cardiovascular system. The CNS consists of the brain, spinal cord, and retina. The brain controls cognitive functions, the spinal cord transmits nerve signals, and the retina is a part of the visual system. Choice B is incorrect as the heart's function is to pump blood and is not involved in CNS functions.

Correct Answer: A

Rationale: Vitamin C is the correct answer as it enhances the absorption of non-heme iron found in plant-based foods. It forms a strong bond with iron, making it easier for the body to absorb. Vitamin D helps with calcium absorption, Vitamin K is crucial for blood clotting, and Vitamin B12 is important for nerve function and red blood cell production. However, they do not directly assist in iron absorption like Vitamin C does.

Correct Answer: A

Rationale: The correct answer is A: Glomerulus. The glomerulus is a network of tiny blood vessels located within the Bowman's capsule. It is responsible for filtering blood and removing waste products, such as urea and excess ions, to form urine. The other choices, Bowman's capsule, Loop of Henle, and Collecting duct, are all involved in the process of urine formation, but they do not directly filter blood. Bowman's capsule surrounds the glomerulus and collects the filtered fluid, the Loop of Henle reabsorbs water and ions, and the Collecting duct further concentrates urine. Therefore, the glomerulus is specifically responsible for the initial filtration of blood in the kidney.