which type of nutrient does not provide the body with energy
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HESI A2

Anatomy HESI A2

1. 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.

2. Which gland produces hormones that regulate metabolism?

Correct answer: B

Rationale: The thyroid gland is responsible for producing hormones, such as thyroxine, that play a crucial role in regulating metabolism, energy production, and overall growth and development in the body. The pituitary gland, while important for hormone regulation, does not primarily regulate metabolism. The adrenal gland is responsible for producing hormones like cortisol and adrenaline, which are more related to stress response than direct metabolism regulation. The pineal gland mainly produces melatonin, which regulates sleep-wake cycles and not metabolism. Therefore, the correct answer is the thyroid gland.

3. Which part of the brain is responsible for processing emotions?

Correct answer: B

Rationale: The correct answer is the amygdala. It is a small, almond-shaped structure located within the temporal lobe of the brain. The amygdala plays a crucial role in processing emotions such as fear, anger, pleasure, and other emotional responses. It is involved in the formation of emotional memories and helps regulate emotional responses to various stimuli. The frontal lobe is mainly responsible for higher cognitive functions such as decision-making and problem-solving, not processing emotions. The parietal lobe is involved in processing sensory information and spatial awareness, while the occipital lobe is primarily responsible for processing visual information.

4. Which hormone is produced by the adrenal cortex?

Correct answer: B

Rationale: The correct answer is B, Cortisol. Cortisol is the hormone produced by the adrenal cortex. It plays a crucial role in regulating metabolism, immune response, and managing stress. Insulin is produced by the pancreas, thyroxine by the thyroid gland, and glucagon by the pancreas. Therefore, choices A, C, and D are incorrect as they are not hormones produced by the adrenal cortex.

5. What is the function of the stomach in the digestive system?

Correct answer: B

Rationale: The correct answer is B: 'To break down food.' The stomach plays a crucial role in the digestive system by breaking down food using gastric acid and digestive enzymes. This process transforms the food into a semi-liquid mixture known as chyme, which is further digested in the small intestine. Choices A, C, and D are incorrect because the stomach does not primarily absorb nutrients, produce bile, or store waste. These functions are carried out by other organs in the digestive system such as the small intestine, liver, and large intestine, respectively.

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