HESI A2
HESI A2 Version 1 Anatomy and Physiology Questions
Question 1 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 2 of 5
What contributes to phagocytosis in white blood cells?
Correct Answer: D
Rationale:
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
A man has a growth on his skin and a small sample needs to be removed and observed under a microscope. Which procedure will be used?
Correct Answer: C
Rationale:
Question 5 of 5
What substance makes up the pads that provide support between the vertebrae?
Correct Answer: B
Rationale: Cartilage is the substance that makes up the pads providing support between the vertebrae. These pads, known as intervertebral discs, consist of tough outer layers of fibrous cartilage and a gel-like inner core. Cartilage plays a crucial role in cushioning the vertebrae, absorbing shock, and maintaining flexibility in the spine.