hesi a2 anatomy and physiology practice test 2023 HESI A2 Anatomy and Physiology Practice Test 2023 - Nursing Elites
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HESI A2

HESI A2 Anatomy and Physiology Practice Test 2023

1. Which type of tissue connects bones to other bones?

Correct answer: B

Rationale: The correct answer is B: Ligaments. Ligaments are tough, flexible connective tissues that connect bones to other bones, providing stability and support to joints. Tendons (choice A) connect muscles to bones, enabling movement. Cartilage (choice C) is a firm, rubbery material that cushions bones at joints. Muscles (choice D) are contractile tissues responsible for movement. Therefore, when looking for the tissue that connects bones to other bones, ligaments are the most appropriate choice.

2. What is the main function of the lymphatic system?

Correct answer: C

Rationale: The main function of the lymphatic system is to fight infections. It achieves this by filtering lymph, returning excess tissue fluid to the bloodstream, and aiding in the body's immune response. The lymphatic system is crucial in protecting the body against pathogens and maintaining overall health. Choices A, B, and D are incorrect because transporting oxygen, producing hormones, and transporting nutrients are functions performed by other systems in the body, like the respiratory, endocrine, and circulatory systems, respectively.

3. What is the role of the large intestine in the digestive system?

Correct answer: B

Rationale: The correct answer is B: Absorbing water and forming solid waste. The large intestine plays a crucial role in absorbing water from the remaining indigestible food matter and forming solid waste (feces) to be excreted from the body. This process helps in maintaining the body's fluid balance and eliminating waste efficiently. Choices A, C, and D are incorrect because the large intestine is not primarily responsible for absorbing nutrients, breaking down fats, or secreting digestive enzymes. These functions are mainly carried out in the small intestine.

4. Which of the following organs is involved in the immune system?

Correct answer: C

Rationale: The appendix is involved in the immune system as it is believed to play a role in maintaining and protecting beneficial gut bacteria, especially after gastrointestinal illnesses. This helps in restoring the balance of intestinal bacteria crucial for immune function. The heart (Choice A), bronchi (Choice B), and esophagus (Choice D) are not directly involved in the immune system's functions. The heart pumps blood, the bronchi are part of the respiratory system, and the esophagus is responsible for transporting food to the stomach.

5. What is the function of the liver in digestion?

Correct answer: A

Rationale: The liver's main role in digestion is to produce bile, a substance that aids in the breakdown and absorption of fats in the small intestine. Bile emulsifies fats, helping enzymes break them down into smaller molecules for easier absorption in the digestive tract. Therefore, the correct answer is A: 'To produce bile.' Storing glucose, secreting digestive enzymes, and detoxifying harmful substances are functions of the liver, but they are not primarily related to digestion.

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