HESI A2
HESI A2 Version 1 Anatomy and Physiology Questions
Question 1 of 5
Which of the following epithelial types is correctly matched with its major function?
Correct Answer: D
Rationale: The correct answer is D. Simple columnar epithelium is matched correctly with its major function of secretion or absorption. Simple squamous epithelium is best suited for diffusion due to its thin structure, while stratified squamous epithelium is mainly for protection against mechanical stress and pathogens. Stratified squamous epithelium does not function primarily in diffusion. Therefore, understanding the structure and function relationship of different epithelial types is crucial for correctly identifying their major functions.
Question 2 of 5
What is the response of cells in the collecting tubules in the nephrons when antidiuretic hormone (ADH) is secreted?
Correct Answer: C
Rationale:
Question 3 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.
Question 4 of 5
What is the name of the process in the lungs by which oxygen is transported from the air to the blood?
Correct Answer: B
Rationale: The correct answer is B, diffusion. Diffusion is the process by which oxygen moves from an area of high concentration (in the air) to an area of low concentration (in the blood) through the alveoli in the lungs. Osmosis involves the movement of water molecules across a semipermeable membrane, not oxygen molecules. Dissipation refers to the dispersal or scattering of something. Reverse osmosis is a process used in water purification, which is not relevant to the transport of oxygen in the lungs.
Question 5 of 5
What cavity of the heart normally has the thickest wall?
Correct Answer: C
Rationale: