HESI A2 A&P 2025 LATEST UPDATE WITH QUESTIONS
AND VERIFIED ANSWERS
What is the function of parathyroid hormone?
A. Increasing energy levels
B. Stimulating cell reproduction
C. Speeding up metabolism
D. Activating vitamin D - ANSWER-D. The parathyroid hormone regulates calcium in the body
through several means, one of which is increasing the production of activated vitamin D.
Which feature of the ear is most medial?
A. Pinna
B. Tympanic membrane
C. Cochlea
D. Outer canal - ANSWER-C. The most medial feature is the one closest to the middle of the
body.
Which of the following are considered normal values for the measure of a person's pulse and
blood pressure?
A. 55 beats per minute and 75 over 60 mm Hg
B. 72 beats per minute and 120 over 80 mm Hg
C. 100 beats per minute and 140 over 100 mm Hg
D. 160 beats per minute and 100 over 70 mm Hg - ANSWER-B. The average person in good
health has a pulse of about 72 beats per minute and a blood pressure of 120 over 80 mm Hg.
How does a sagittal section divide the body?
A. Into right and left regions
, HESI A2 A&P 2025
B. Into upper and lower regions
C. Into front and back regions
D. Between the dorsal and ventral cavities - ANSWER-A. A sagittal section occurs along a
longitudinal plane, dividing the body into right and left regions.
How is pepsin used by the body?
A. To break down proteins
B. To break down starches
C. To emulsify fats and oils
D. To absorb water and nutrients - ANSWER-A. Pepsin aids chemical digestion in the stomach by
breaking down proteins.
The esophagus is part of the __________
A. endocrine system
B. digestive system
C. respiratory system
D. nervous system - ANSWER-B. The esophagus is the passage that connects the pharynx to the
stomach.
Which mineral supports the function of the thyroid?
A. Manganese
B. Iodine
C. Phosphorus
D. Zinc - ANSWER-B. Iodine is the key mineral in thyroid hormone production. Iodine deficiency
can cause a goiter, swelling of the thyroid gland.
The cheekbones are _________ to the nose.
, HESI A2 A&P 2025
A. anterior
B. proximal
C. deep
D. lateral - ANSWER-D. The cheeckbones are to the right and left of the nose, meaning that they
are lateral to it, or away from the body's midline.
Which organ system is primarily responsible for generating antibodies?
A. The endocrine system
B. The digestive system
C. The lymphatic system
D. The nervous system - ANSWER-C. Antibodies are formed when an antigen stimulates B cells,
special lymphocytes, to produce specialized proteins that combat foreign substances or
organisms.
The lateral side of the right knee would be ______.
A. the kneecap.
B. closest to the left knee.
C. farthest from the left knee.
D. on the underside of the knee. - ANSWER-C. Something that is lateral is toward the outer side
of the body. The side of the right knee farthest from the left knee would fit this description.
In which part of the lungs do nearly all the gaseous exchanges between air and blood take
place?
A. Pleura.
B. Trachea.
C. Bronchioles.
D. Alveoli. - ANSWER-D. The alveoli are the tiny air sacs in the lungs where the exchange of
oxygen and carbon dioxide takes place.
, HESI A2 A&P 2025
How do the intercostal muscles between the ribs assist with respiration?
A. By protecting the delicate bronchioles and alveoli.
B. By signaling a decrease in intra-alveolar pressure.
C. By enlarging and reducing the space in the thorax.
D. By maintaining a medial separation between pleurae. - ANSWER-C. The ribs themselves
protect the lungs (choice A), but the intercostals are muscles that expand and contract the
chest, allowing it to draw in and expel air.
In which organ do muscles push food into the stomach via peristalsis?
A. Mouth.
B. Small intestine.
C. Epiglottis.
D. Esophagus. - ANSWER-D. The esphagus connects the stomach and the oral cavity in the
human digestive system.
For the average person, what is true about caloric intake?
A. It should increase with age after age 25.
B. It should decline with age after age 25.
C. It should remain constant over a lifetime.
D. It should decline and then increase with age. - ANSWER-B. The height of calorie intake for
healthy, active people is approximately their mid-20s. After that, calorie intake should decline
slightly as energy needs decline.
Which is an anterior muscle?
A. Gluteus maximus