HESI A2
HESI A2 Anatomy and Physiology Practice Exam
1. How does the skeletal system work with the nervous system?
- A. The bones transmit signals about body position to the brain.
- B. Pain nerves within bones notify the brain of injuries.
- C. The vertebrae of the spine protect the spinal cord.
- D. Bone marrow generates and houses nerve cells.
Correct answer: C
Rationale: The skeletal system collaborates with the nervous system by providing protection and support for critical nervous system components. The vertebrae of the spine play a crucial role in safeguarding the spinal cord, a key component of the nervous system responsible for transmitting messages between the brain and the body. Protecting the spinal cord is essential to prevent neurological complications. Choices A, B, and D are incorrect because while bones do play a role in body position and can sense pain, the primary focus of the skeletal system's interaction with the nervous system is to protect vital components like the spinal cord, rather than generating nerve cells.
2. Where is a gallstone most likely to cause pain?
- A. In the upper right quadrant of the abdomen
- B. In the lower right quadrant of the abdomen
- C. In the umbilical region
- D. Along the pelvic girdle
Correct answer: A
Rationale: A gallstone is most likely to cause pain in the upper right quadrant of the abdomen. This specific area corresponds to the location of the gallbladder. When a gallstone blocks the flow of bile from the gallbladder, it can lead to inflammation and pain in this region. The pain may also radiate to the back or right shoulder blade due to referred pain patterns associated with gallbladder issues. Choices B, C, and D are incorrect because gallstone pain is typically felt in the upper right quadrant of the abdomen, not the lower right quadrant, umbilical region, or along the pelvic girdle.
3. Which is another name for thiamine?
- A. Vitamin B1
- B. Vitamin B2
- C. Vitamin B6
- D. Vitamin D
Correct answer: A
Rationale: Thiamine is another name for Vitamin B1. It is an essential vitamin that plays a crucial role in energy metabolism and is important for the proper functioning of the nervous system. Vitamin B2 is riboflavin, not thiamine. Vitamin B6 is pyridoxine, not thiamine. Vitamin D is a different vitamin responsible for calcium absorption and bone health, not thiamine. Therefore, the correct answer is Vitamin B1.
4. The anterior chamber of the eye lies between the ___________.
- A. iris and lens
- B. lens and retina
- C. cornea and iris
- D. retina and optic nerve
Correct answer: A
Rationale: The anterior chamber of the eye is the fluid-filled space located between the cornea and the iris in the front part of the eye. It contains aqueous humor and helps maintain intraocular pressure. The space between the iris and the lens is known as the anterior chamber, making option A, 'iris and lens,' the correct choice. Options B, C, and D are incorrect because they do not describe the correct anatomical location of the anterior chamber.
5. Which mineral is considered an antioxidant?
- A. Selenium
- B. Calcium
- C. Sulfur
- D. Iron
Correct answer: A
Rationale: Selenium is the correct answer. It is considered an antioxidant mineral that plays a crucial role in protecting cells from damage caused by free radicals. Selenium is an essential component of the body's antioxidant defense system, promoting overall health and well-being. Calcium (Choice B), Sulfur (Choice C), and Iron (Choice D) are not typically classified as antioxidant minerals. While these minerals have other important functions in the body, they do not primarily act as antioxidants like selenium.
Similar Questions
Access More Features
HESI A2 Basic
$89/ 30 days
- 3,000 Questions with answers
- 30 days access @ $89
HESI A2 Premium
$129.99/ 90 days
- Actual HESI A 2 Questions
- 3,000 questions with answers
- 90 days access @ $129.99