In the organization of the brain, each hemisphere of the cerebrum primarily regulates which of the following?

• A. Only language processing abilities
• B. Motor and sensory functions on the opposite side of the body
• C. The function of the spinal cord exclusively
• D. Hormone secretion throughout the body

Answer: (B)

Verified step by step guidance

1. Understand that the cerebrum is divided into two hemispheres: the left and the right hemisphere.
2. Recognize that each hemisphere primarily controls motor and sensory functions on the opposite (contralateral) side of the body, meaning the left hemisphere controls the right side and vice versa.
3. Note that while language processing is often lateralized (usually in the left hemisphere), it is not the sole function of a hemisphere, so 'only language processing abilities' is incorrect.
4. Recall that the spinal cord is a separate structure responsible for transmitting signals between the brain and the body, so it is not regulated exclusively by a cerebral hemisphere.
5. Understand that hormone secretion is mainly controlled by the endocrine system and brain structures like the hypothalamus and pituitary gland, not directly by the cerebral hemispheres.