HESI A2
HESI A2 Version 1 Anatomy and Physiology Questions
Question 1 of 5
What are the chemical messengers that control growth, differentiation, and the metabolism of specific target cells called?
Correct Answer: A
Rationale: Hormones are the correct answer. Hormones are signaling molecules produced by glands in the endocrine system. They travel through the bloodstream to target cells, where they regulate various physiological processes like growth, differentiation, and metabolism. Neurons are nerve cells that transmit information, glands produce and release hormones, and second messengers are molecules involved in intracellular signal transduction.
Question 2 of 5
What do ceruminous glands secrete?
Correct Answer: B
Rationale:
Question 3 of 5
Arrector pili are responsible for which action?
Correct Answer: D
Rationale:
Question 4 of 5
Where is the parathyroid gland located?
Correct Answer: A
Rationale: The parathyroid gland is located in the neck. It consists of four small glands situated behind the thyroid gland. These glands play a crucial role in regulating calcium levels in the body. The correct anatomical location of the parathyroid gland is in the neck, specifically behind the thyroid gland, making choice A the correct answer.
Question 5 of 5
Which hormone stimulates milk production in the breasts during lactation?
Correct Answer: C
Rationale: Prolactin is the hormone responsible for stimulating milk production in the breasts during lactation. It is produced by the pituitary gland and plays a crucial role in the initiation and maintenance of lactation. While norepinephrine, antidiuretic hormone, and oxytocin have roles in various physiological processes, they do not directly stimulate milk production. Therefore, the correct answer is prolactin.