Each hemisphere of the cerebrum regulates a. motor functions on the opposite side of the body. b. motor functions on the same side of the body. c. only functions within the brain. d. only functions within the spinal cord

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Answer 1

Textbook Question

Chapter 30, Problem 1PL

Each hemisphere of the cerebrum regulates
a. motor functions on the opposite side of the body.
b. motor functions on the same side of the body.
c. only functions within the brain.
d. only functions within the spinal cord

Expert Solution & Answer

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

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Answer 2

Textbook Question

Chapter 30, Problem 1PL

Each hemisphere of the cerebrum regulates
a. motor functions on the opposite side of the body.
b. motor functions on the same side of the body.
c. only functions within the brain.
d. only functions within the spinal cord

Expert Solution & Answer

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

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Answer 3

Textbook Question

Chapter 30, Problem 1PL

Each hemisphere of the cerebrum regulates
a. motor functions on the opposite side of the body.
b. motor functions on the same side of the body.
c. only functions within the brain.
d. only functions within the spinal cord

Expert Solution & Answer

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

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Answer 4

Textbook Question

Chapter 30, Problem 1PL

Each hemisphere of the cerebrum regulates
a. motor functions on the opposite side of the body.
b. motor functions on the same side of the body.
c. only functions within the brain.
d. only functions within the spinal cord

Expert Solution & Answer

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

The cerebrum is also known as the telencephalon that has two cerebral hemispheres and many subcortical structures. In humans, it forms the uppermost portion of the central nervous system. Cerebrum with the help of the cerebellum controls voluntary actions.

Answer 12

Answer to Problem 1PL

Correct answer:

The correct answer is option (a) motor functions on the opposite side of the body.

Answer 13

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) motor functions on the opposite side of the body. The cerebral hemispheres of the cerebrum are organized contralaterally. The contralateral organization allows the crossing of axonal fibers in the forebrain. This suggests that the axons originating from the left side of the forebrain control the functions on the right side of the body and vice versa. So, the correct answer is option (a).

Explanation for incorrect answer:

Option (b) motor functions on the same side of the body. Motor functions on the same side of the body are controlled by the ipsilateral organization of the axons. Axons arranged in the ipsilateral organization remains on the same side as that of their origin and thus control the motor functions on the same side. Axons originating from the cerebral hemisphere are organized contralaterally. So, this is an incorrect option.

Option (c) only functions within the brain. The axons originating from the cerebral hemisphere reaches the effector muscles that control voluntary actions. So, this is an incorrect answer.

Option (d) only functions in the spinal cord. The cerebral hemisphere is the part of the cerebrum that forms the forebrain (the major portion of the brain). It is responsible for controlling the voluntary actions of the body. So, this is an incorrect answer.

Answer 14

Ch. 30 - Each hemisphere of the cerebrum regulates a. motor...Ch. 30 - There are _______ pairs of cranial nerves a. 2 b....Ch. 30 - Which of the following is not part of the...Ch. 30 - The __________ is the deep lobe of the cerebrum....Ch. 30 - The ________ separates the precentral and...Ch. 30 - The cranial meninges include the dura mater,...Ch. 30 - Ventricles of the brain contain cerebrospinal...Ch. 30 - Functions of the cerebellum include reasoning,...Ch. 30 - Prob. 1.1A Ch. 30 - Complete the following statements: 1. The...

Each hemisphere of the cerebrum regulates a. motor functions on the opposite side of the body. b. motor functions on the same side of the body. c. only functions within the brain. d. only functions within the spinal cord

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Answer to Problem 1PL

Explanation of Solution

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Chapter 30 Solutions