the motor cortex helps the brain by monitoring and controlling the bodys movement where is the motor cortex located within the brain
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HESI A2

HESI A2 Anatomy and Physiology 2023

1. The motor cortex is essential for monitoring and controlling body movements. Where is the motor cortex located within the brain?

Correct answer: C

Rationale: The motor cortex is located in the frontal portion of the brain, specifically in the precentral gyrus of the frontal lobe. It plays a crucial role in planning, controlling, and executing voluntary movements. Choice A, 'Top, middle portion of the parietal lobe,' is incorrect because the motor cortex is not located in the parietal lobe but rather in the frontal lobe. Choice B, 'Back of the head,' is incorrect as it refers to the occipital lobe, not where the motor cortex is situated. Choice D, 'Around the auditory cortex,' is incorrect as the motor cortex is not located around the auditory cortex but in the frontal lobe, as mentioned earlier.

2. What is the best description of the term Gravid?

Correct answer: B

Rationale: The term 'Gravid' means being pregnant or expecting a child. Therefore, the correct answer is B. Choice A, 'Thin,' is incorrect as it does not relate to the term Gravid. Choice C, 'Infected,' is also incorrect as it is not a relevant description of the term. Choice D, 'Healing,' is unrelated to the term Gravid and is therefore incorrect.

3. What is the probability of rolling an even number on a six-sided die?

Correct answer: A

Rationale: The correct answer is A, 50%. A standard six-sided die has three even numbers (2, 4, 6) out of six possible outcomes. The probability of rolling an even number is therefore 3 out of 6, which simplifies to 50%. Choices B, C, and D are incorrect because they do not accurately reflect the probability of rolling an even number on a six-sided die.

4. Another word for PRECAUTION is?

Correct answer: B

Rationale: Another word for PRECAUTION is a preventive measure because both terms refer to actions taken in advance to prevent something untoward from happening. They are proactive steps aimed at avoiding potential risks or harm. While a routine procedure and habit may involve general practices, a preventive measure specifically denotes a proactive step taken to avert potential dangers or issues. 'Routine procedure' is incorrect as it does not necessarily imply preventive action. 'Habit' is incorrect as it refers to repeated behaviors rather than proactive steps. 'Safeguard' is incorrect as it generally means protection rather than a proactive preventive action.

5. How many ounces are in 4 quarts?

Correct answer: B

Rationale: The correct answer is B: 128 ounces. There are 32 ounces in a quart, so when you have 4 quarts, you multiply 4 by 32 to get the total number of ounces, which equals 128. Choices A, C, and D are incorrect because they do not reflect the correct conversion from quarts to ounces.

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