Tag: divisions of nervous system

Questions Related to divisions of nervous system

Comparing the somatic nervous system with the autonomic nervous system, which of the following statement is true?

biology nervous system of man divisions of nervous system autonomic nervous system the human brain

  1. Autonomic nervous system produces involuntary movement in skeletal muscle

  2. Somatic nervous system produces voluntary movement in glands and smooth muscle

  3. Autonomic nervous system produces voluntary movement in smooth muscle and glands

  4. Autonomic nervous system produces involuntary movement in smooth muscle, viscera and glands

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Correct Option: D
Explanation:

The autonomic nervous system is the part of the nervous system that supplies that internal organs, including the blood vessels, stomach, intestine, liver, kidneys, and digestive glands.

So, the correct option is 'Autonomic nervous system produces involuntary movement in smooth muscle, viscera and glands'.

Premotor area of brain is the highest centre of

biology nervous system of man divisions of nervous system autonomic nervous system the human brain

  1. Thinking

  2. Autonomous nervous system

  3. Movements of involuntary muscles

  4. Both B and C

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Correct Option: D
Explanation:

The premotor area occurs in the frontal lobe of the cerebrum. It is made up of the neurons that form the part of the autonomous nervous system and movements of the involuntary muscles like movements of pharynx and larynx. The prefrontal cortex of the frontal lobe is concerned with thinking and reasoning.

Hence, the correct answer is 'Both B and C'

Parasympathetic nervous system is also termed as

biology nervous system of man divisions of nervous system autonomic nervous system the human brain

  1. Visceral

  2. Thoracico-lumbar

  3. Cranio-sacral

  4. Mesenteric

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Correct Option: C
Explanation:

The parasympathetic nervous system is a division of the autonomic nervous system. The preganglionic nerve fibres of this system arise from the brain which includes cranial nerves III, VII, IX and X, that is, the oculomotor, facial, glossopharyngeal and vagus nerves, as well as from the sacral region of the spinal cord, that is, ramus communicans 2, 3 and 4. The sympathetic nervous system is called the thoracico-lumbar.

Hence, the correct answer is 'Cranio-sacral'

Which of the following is not true concerning the autonomic nervous system?

biology nervous system of man divisions of nervous system autonomic nervous system the human brain

  1. Sympathetic responses include fight-or-flight responses

  2. Sympathetic responses are generally widespread throughout the body

  3. It includes sensory pre- and postganglionic fibres

  4. Autonomic division is entirely motor

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Correct Option: C
Explanation:

The autonomic nervous system is the part of the nervous system that supplies internal organs, including the blood vessels, stomach, intestine, liver, kidneys, and digestive glands.

So, the correct option is 'It includes sensory pre- and postganglionic fibres'.

Choose the correct answer from the alternatives given.
All visceral effectors are innervated by both the parasympathetic and sympathetic divisions of the autonomic nervous system for coordinating various activities of the body This concept is known is

biology nervous system of man divisions of nervous system autonomic nervous system the human brain

  1. sensory/motor regulation

  2. dual innervation

  3. autonomic summation

  4. neurotransmitter trade-off

Show answer
Correct Option: B
Explanation:

There is a dual innervation of most organs of the body by the sympathetic and parasympathetic divisions of the ANS. The connection of both systems with the hypothalamus and higher brain areas have been omitted.

So, the correct option is 'dual innervation'.