HESI A2
HESI A2 Version 1 Anatomy and Physiology Questions
Question 1 of 5
Which structure is located on the sternum?
Correct Answer: A
Rationale: The xiphoid process is the structure located at the bottom of the sternum. It is a small cartilaginous process that ossifies with age. The sesamoid bone is a small bone embedded within a tendon, not typically found on the sternum. The hyoid bone is a U-shaped bone located in the neck, not on the sternum. 'Ossified' refers to a structure that has become hardened like bone, but it is not a specific structure located on the sternum.
Question 2 of 5
The calcaneus is located in what part of the body?
Correct Answer: A
Rationale:
Question 3 of 5
Which structure of the nervous system carries action potential in the direction of a synapse?
Correct Answer: B
Rationale: The correct answer is B: axon. The axon is a long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body towards other neurons or target cells, such as muscles or glands, including towards a synapse. The cell body contains the nucleus and other organelles but does not carry action potentials. While a neuron is the overall structural and functional unit of the nervous system, the axon is specifically responsible for transmitting action potentials.
Question 4 of 5
Which type of cholesterol is considered to be the healthiest?
Correct Answer: B
Rationale: High-Density Lipoprotein (HDL) cholesterol is considered the healthiest type of cholesterol because it helps remove LDL cholesterol from the arteries, reducing the risk of heart disease. HDL acts as a scavenger, carrying cholesterol away from the arteries to the liver where it can be processed and eliminated from the body. Having high levels of HDL cholesterol is associated with a lower risk of cardiovascular diseases.
Question 5 of 5
Which structure of the eye picks up color?
Correct Answer: B
Rationale: