Tag: human nervous system

Questions Related to human nervous system

Acetyl Choline causes.

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

  1. Brady Cardia

  2. Tachy Cardia

  3. Both

  4. None

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Correct Option: A

Which of the following parts of brain constitute the brain stem?

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

  1. Midbrain and hindbrain

  2. Hindbrain and forebrain

  3. Forebrain and midbrain

  4. forebrain only

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Correct Option: A
Explanation:

Brainstem connects the cerebrum to the spinal cord. It consists of the midbrain (mesencephelon), medulla oblongata and the pons (parts of the hind brain). It relays information between the cerebrum and the spinal cord.

So, the correct answer is 'Midbrain and hindbrain'

Involuntary action in the body is controlled by

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

  1. Medulla in fore brain

  2. Medulla in mid brain

  3. Medulla in hind brain

  4. Medulla in spinal cord

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Correct Option: C
Explanation:

The medulla oblongata is a cone shaped neuronal mass in the hindbrain which connects higher level of both brain and spinal cord. It serves in several functions of the autonomous nervous system (ANS) such as involuntary actions like heart rate, breathing, swallowing, sneezing and digestion by the sympathetic and parasympathetic response. 

So, the correct answer is option C.

Cerebrum is also known as cerebellum.

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

  1. True

  2. False

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Correct Option: B
Explanation:

Cerebrum is a part of forebrain and makes up about two third of the human brain, and consists of two cerebral hemispheres joined by a curved thick band of nerve fibres called corpus callosum whereas cerebellum is a part of hindbrain and is only 1/8th the size of the cerebrum and lies under occipital lobe, dorsal to brain stem.

Put a tick mark against the correct alternative in the following statements :
Balance of body is controlled by

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

  1. Spinal cord

  2. Cerebellum

  3. Cerebrum

  4. Medulla

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Correct Option: B
Explanation:

It's a lot smaller than the cerebrum at only 1/8 of its size It controls balance or equilibrium of the body.

So, the correct answer is 'Cerebellum'

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.

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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

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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