Tag: nervous system of man

Questions Related to nervous system of man

The brain stem is made up of

biology nervous system of man human nervous system the structure of brain the human brain

  1. Midbrain, pons, cerebellum

  2. Midbrain, pons, medulla oblongata

  3. Diencephalon, medulla oblongata, cerebellum

  4. Cerebellum, cerebrum, medulla oblongata.

Show answer
Correct Option: B
Explanation:

The brain stem controls the flow of messages between the brain and the rest of the body, and it also controls basic body functions such as breathing, swallowing, heart rate etc... The brainstem is divided into three sections in humans: the midbrain (mesencephalon) which governs rudimentary vision and hearing, pons varolii (metencephalon) which links the cerebellum to the cerebrum and the medulla oblongata (myelencephalon) which controls breathing, swallowing, blood pressure, and heart rate.

Salivation in mammals is under the control of ____________.

biology nervous system of man human nervous system the structure of brain the human brain

  1. Medulla oblongata

  2. Mesencephalon

  3. Hypothalamus

  4. Cerebellum

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Correct Option: D

The Broca's area and Wernicke's centre are the association areas situated in cerebrum. These are associated with ___________.

biology nervous system of man human nervous system the structure of brain the human brain

  1. breathing

  2. blind spot

  3. memory

  4. none of these.

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Correct Option: D
Explanation:

Broca's area is the motor speech area and Wernicke's area plays role in understanding speech and writing words.

Read the following five statements (i) to (v) regarding left cerebral hemisphere and select the option that correctly states the true (T) and false (F) statements.
(i) It receives most modalities of sensory information from the right side of the body.
(ii) It is usually larger than the right cerebral hemisphere.
(iii) It is the dominant cerebral hemisphere in most individuals.
(iv) It is connected to the right cerebral hemisphere by the corpus callosum.
(v) It contains the main areas for the understanding and production of speech in most individuals.

biology nervous system of man human nervous system the structure of brain the human brain

  1. (i) - T, (ii) - T, (iii) - F, (iv) - F, (v) - F

  2. (i) - F, (ii) - T, (iii) - T, (iv) - F, (v) - T

  3. (i) - T, (ii) - F, (iii) - T, (iv) - T, (v) - T

  4. (i) - F, (ii) - F, (iii) - T, (iv) - T, (v) - T

Show answer
Correct Option: C

Which of the following among these structures is/are found in diencephalon?

biology nervous system of man human nervous system the structure of brain the human brain

  1. Pons

  2. Basal ganglia

  3. Corpora quadrigemina

  4. Hypothalamus

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Correct Option: D

Fore-brain is centre of intelligence, control of movements, hearing, smell and sight.

biology nervous system of man human nervous system the structure of brain the human brain

  1. True

  2. False

Show answer
Correct Option: A
Explanation:

Forebrain consists of two regions; namely cerebrum and diencephalon. A deep cleft divides the cerebrum longitudinally into two halves, which are termed as the left and right cerebral hemispheres. Each cerebral hemisphere is divided into four lobes, viz., frontal lobe, parietal lobe, occipital lobe and temporal lobe. The frontal lobe is associated with intelligence, memory, judgment, problem-solving ability and controls voluntary activities. The parietal lobe is associated with the sense of touch, temperature, pressure, and pain. The temporal lobe is associated with the sense of taste, hearing, and smell. The occipital lobe is associated with sight.

What is the space between arachnoid and piameter called?

biology nervous system of man human nervous system the structure of brain the human brain

  1. Supra - arachnoid space

  2. Sub - arachnoid space

  3. Subdural space

  4. Meninges

Show answer
Correct Option: B
Explanation:

Piameter is the innermost membrane of the brain and arachnoid is the middle membrane. The space between arachnoid and piameter is caleed sub-arachnoid space. This space is filled with cerebrospinal fluid.

Broca's area in human brain controls

biology nervous system of man human nervous system the structure of brain the human brain

  1. Speech

  2. Taste

  3. Respiration

  4. Heartbeat

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Correct Option: A

Pneumotaxic centre which can moderate the functions of the respiratory rhythm centre is present in

biology nervous system of man human nervous system the structure of brain the human brain

  1. pons region of brain

  2. thalamus

  3. spinal cord

  4. right cerebral hemisphere

Show answer
Correct Option: A
Explanation:

Pneumotaxic centre is present in the dorsal part of the pons varolii of the brain. Its function is primarily to limit inspiration.

Match column I and column II and select the correct option from the codes given below.

Column I Column II
A. Cerebrum (i) Controls of the pituitary
B. Cerebellum (ii) Controls vision and hearing
C. Hypothalamus (iii) Controls the rate of heart beat
D. Midbrain (iv) Seat of intelligence
(v) Maintains body posture


biology nervous system of man human nervous system the structure of brain the human brain

  1. A - (v), B - (iv), C - (ii), D - (i)

  2. A - (iv), B - (v), C - (ii), D - (i)

  3. A - (v), B - (iv), C - (i), D - (ii)

  4. A - (iv), B - (v), C - (i), D - (ii)

Show answer
Correct Option: D
Explanation:

Cerebrum is the main site of intelligence and consciousness in the body of the organism. The hypothalamus is the area of brain that is important in controlling the balance of bodily functions. It controls the release of hormones from the pituitary gland. The midbrain is responsible for controlling the vision and hearing features of the organism. Medulla oblongata is responsible for controlling the rate of the heart beat.

Thus, the correct answer is 'A - (iv), B - (v), C - (i), D - (ii).'