HESI A2
HESI A2 Version 1 Anatomy and Physiology Questions
Question 1 of 5
What is the most abundant type of cell in the epidermis?
Correct Answer: C
Rationale:
Question 2 of 5
Which hormone is responsible for preparing the endometrium of the uterus for pregnancy?
Correct Answer: B
Rationale: Estrogen is the hormone responsible for initiating the preparation of the endometrium of the uterus for pregnancy. Estrogen helps thicken the endometrial lining, which is crucial for the implantation of a fertilized egg. It plays a vital role in the menstrual cycle and is primarily produced by the ovaries.
Question 3 of 5
How much air does an adult inhale in an average breath?
Correct Answer: A
Rationale: An adult typically inhales around 500 mL of air in an average breath. This volume is known as tidal volume, representing the amount of air inspired or expired during normal breathing. Tidal volume plays a crucial role in efficient gas exchange in the lungs and maintaining adequate oxygen levels in the body. It is essential for proper respiratory function and ensuring the body receives the necessary oxygen for cellular respiration and overall metabolism.
Question 4 of 5
Which of the following hormones decreases the concentration of blood glucose?
Correct Answer: A
Rationale: Insulin is the hormone responsible for decreasing the concentration of blood glucose levels by promoting the uptake and storage of glucose in cells. When blood glucose levels rise, insulin is released to help cells absorb excess glucose, thereby lowering its concentration in the bloodstream. Glucagon, growth hormone, and glucocorticoids, in contrast, all play roles in increasing blood glucose levels through different mechanisms.
Question 5 of 5
To where are all the nutrients that enter the hepatic portal vein routed for decontamination?
Correct Answer: D
Rationale: When nutrients are absorbed from the digestive tract, they enter the hepatic portal vein and are transported directly to the liver. The liver acts as a filter, processing and detoxifying these nutrients before they are further distributed to the rest of the body. Therefore, the correct answer is the liver, which plays a crucial role in detoxifying substances that enter the body through the digestive system.