HESI A2
Anatomy and Physiology Hesi A2 Practice Test Questions
Question 1 of 5
What role does the liver play in metabolism?
Correct Answer: B
Rationale: The correct answer is B: '
To detoxify harmful substances.' The liver is primarily responsible for detoxifying harmful substances present in the blood as part of its role in metabolism. While the liver does produce bile to aid in digestion and stores glucose for energy regulation, its main function in metabolism is detoxification. The liver does not produce insulin; insulin is produced by the pancreas to regulate blood sugar levels.
Question 2 of 5
Which structure is part of both the male reproductive system and the urinary system?
Correct Answer: B
Rationale: The correct answer is the Urethra. The urethra is a structure that plays a role in both the male reproductive system, by carrying semen, and the urinary system, by carrying urine. It serves as a common pathway for both reproductive and excretory functions in males. The Testes (
Choice
A) are part of the male reproductive system but not the urinary system. The Prostate (
Choice
C) is also part of the male reproductive system but not the urinary system. The Penis (
Choice
D) is primarily involved in the male reproductive system as the organ that delivers semen during sexual intercourse.
Question 3 of 5
Which of the following is known as the production of red blood cells?
Correct Answer: B
Rationale: Erythropoiesis specifically refers to the process of producing red blood cells (erythrocytes) in the bone marrow. Hematopoiesis is the broader term that encompasses the production of all types of blood cells, including red blood cells, white blood cells, and platelets. Phagocytosis is the process by which cells engulf and digest particles, while thrombopoiesis is the production of platelets.
Therefore, the correct answer is B as it directly relates to the production of red blood cells.
Question 4 of 5
Which nutrients are important for bone health?
Correct Answer: B
Rationale: Calcium and phosphorus are crucial nutrients for bone health as they are essential minerals required for bone strength, density, and various body functions. Adequate intake of calcium and phosphorus through the diet is important for maintaining healthy bones and preventing conditions like osteoporosis. Vitamin D helps with calcium absorption, but it is not the main nutrient responsible for bone health. Iron and zinc are important for other bodily functions, not specifically bone health. Magnesium and sodium, while important for overall health, are not as directly linked to bone health as calcium and phosphorus.
Question 5 of 5
Which of the following statements best describes endocrine glands?
Correct Answer: B
Rationale: The correct answer is B: 'They secrete chemicals into the blood.' Endocrine glands release hormones directly into the bloodstream to regulate various body functions. This process helps in maintaining homeostasis and coordinating different physiological processes within the body.
Choice A is incorrect as endocrine glands do not absorb chemicals from the blood; instead, they release hormones.
Choice C is incorrect as endocrine glands do not filter chemicals from the blood; they secrete hormones.
Choice D is incorrect as endocrine glands do not absorb chemicals from the lymphatic system; they release hormones into the bloodstream.