what is the role of the liver in detoxification
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HESI A2

Anatomy HESI A2 Practice Test

1. What is the role of the liver in detoxification?

Correct answer: C

Rationale: The correct answer is C. The liver's primary function in detoxification is to convert harmful toxins into less harmful substances. This process helps in safeguarding the body from the adverse effects of toxins and is essential for maintaining overall health. Choices A, B, and D are incorrect because secreting bile, storing glucose, and producing insulin are functions of the liver unrelated to detoxification.

2. Which type of nutrient does not provide the body with energy?

Correct answer: A

Rationale: The correct answer is A. Vitamins are essential nutrients that the body needs in small amounts but do not provide energy like carbohydrates, fats, and proteins do. Carbohydrates, fats, and proteins are macronutrients that supply energy to the body when broken down during metabolism. Vitamins, on the other hand, play crucial roles in various bodily functions but are not a source of energy. They are essential for supporting growth, immune function, and overall health, but do not contribute directly to energy production. Choices B, C, and D are incorrect because carbohydrates, fats, and proteins are macronutrients that provide energy to the body when metabolized.

3. Which of the following is not part of the axial skeletal system?

Correct answer: D

Rationale: The correct answer is D, the radius. The axial skeleton comprises bones located along the central axis of the body. It includes the skull, ribs, breastbone (sternum), vertebrae, and sacrum. The radius, on the other hand, is a bone of the forearm, part of the appendicular skeleton. The appendicular skeleton consists of the bones of the limbs and their girdles, not the central axial bones.

4. Which of the following are considered normal values for the measure of a person’s pulse and blood pressure?

Correct answer: B

Rationale: Normal values for pulse rate typically range between 60 to 100 beats per minute, while normal blood pressure values are usually around 120/80 mm Hg. Option B falls within these normal ranges for both pulse rate and blood pressure, making it the correct choice. Choices A, C, and D have either pulse rate, blood pressure, or both values outside the normal ranges, making them incorrect.

5. What is the primary function of the heart?

Correct answer: B

Rationale: The primary function of the heart is to pump oxygenated blood and nutrients throughout the body, supplying cells with vital substances. Choice A is incorrect as the kidneys are responsible for filtering blood. Choice C is incorrect as waste removal is primarily handled by organs like the kidneys and liver. Choice D is incorrect as regulating body temperature is mainly controlled by mechanisms such as sweating and shivering, not the heart.

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