HESI A2
HESI A2 Anatomy and Physiology Practice Test 2023 Questions
Question 1 of 5
What is the primary function of the adrenal glands?
Correct Answer: B
Rationale: The correct answer is B: To regulate metabolism and stress response. The adrenal glands produce hormones like cortisol and adrenaline, which play a crucial role in regulating metabolism and the body's response to stress. Insulin production is primarily done by the pancreas (not adrenal glands), fighting infections is the role of the immune system (not adrenal glands), and while the adrenal glands do play a role in blood pressure regulation, it is not their primary function.
Question 2 of 5
What is the primary function of the large intestine?
Correct Answer: A
Rationale: The correct answer is A: To absorb water and form solid waste. The large intestine's primary function is to absorb water and electrolytes from the indigestible food residue that enters it from the small intestine. This process helps in forming solid waste (feces) for elimination. The other choices are incorrect because B is the function of the pancreas and small intestine, C is the function of the endocrine system and not the large intestine, and D is the function of the small intestine where nutrient absorption mainly occurs.
Question 3 of 5
Which of the following organs is involved in the immune system?
Correct Answer: C
Rationale: The correct answer is C: Appendix. The appendix is a part of the immune system as it contains lymphoid tissue that helps in immune responses. It plays a role in maintaining gut microbiota and fighting off infections. The other choices, heart, bronchi, and esophagus, are not directly involved in the immune system. The heart is responsible for pumping blood, the bronchi are air passages in the lungs, and the esophagus is a tube that connects the throat to the stomach. Therefore, the appendix is the only organ listed that is directly associated with the immune system.
Question 4 of 5
What is the main function of the lymphatic system?
Correct Answer: C
Rationale: The correct answer is C: To fight infections. The lymphatic system plays a crucial role in the body's immune response by filtering and trapping pathogens, producing white blood cells, and transporting immune cells to areas of infection. This function helps the body defend against harmful bacteria, viruses, and other pathogens. The other choices are incorrect because: A: To transport oxygen - This is the function of the circulatory system, specifically the red blood cells carrying oxygen to tissues. B: To produce hormones - Hormone production is primarily carried out by the endocrine system, not the lymphatic system. D: To transport nutrients - Nutrient transportation is mainly handled by the digestive system through the bloodstream, not the lymphatic system.
Question 5 of 5
What is the main function of the nervous system?
Correct Answer: C
Rationale: The correct answer is C: Regulating body temperature. The nervous system plays a vital role in maintaining homeostasis by controlling body temperature through signals to sweat glands and blood vessels. Choices A, B, and D are incorrect because transporting blood is primarily done by the circulatory system, protecting the body from infection is the role of the immune system, and digesting food is the function of the digestive system.
Similar Questions
Join Our Community Today!
Join Over 10,000+ nursing students using Nurselytic. Access Comprehensive study Guides curriculum for HESI A2-HESI A2 and 3000+ practice questions to help you pass your HESI A2-HESI A2 exam.
Subscribe for Unlimited Access