Tag: nervous system of man

Questions Related to nervous system of man

Hypoglossal nerve controls the movements of

zoology nervous system of man pns divisions of nervous system peripheral nervous system

  1. Ear

  2. Heart

  3. Tongue

  4. Limbs

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Correct Option: C

Vagus nerve is

zoology nervous system of man pns divisions of nervous system peripheral nervous system

  1. Sensory tenth cranial nerve

  2. Motor tenth cranial nerve

  3. Mixed tenth cranial nerve

  4. Mixed eleventh cranial nerve

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Correct Option: C

The $3^{rd}, 6^{th} and 11^{th}$ cranial nerves are respectively

zoology nervous system of man pns divisions of nervous system peripheral nervous system

  1. oculomotor, abducens and accessory

  2. oculomotor, trigeminal and accessory

  3. optic, facial and accessory

  4. trochlear, abducens and vagus

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Correct Option: A
Explanation:

In higher vertebrates (reptiles, birds, mammals) there are 12 pairs of cranial nerves- olfactory (I), optic (II), oculomotor (III), trochlear (IV), trigeminal (V), abducens (VI), facial (VII), vestibulocochlear (VIII), glossopharyngeal (IX), vagus (X), accessory (XI), and hypoglossal (XII).

The vagus nerve is the _______ cranial nerve.

zoology nervous system of man pns divisions of nervous system peripheral nervous system

  1. $7^{th}$

  2. $5^{th}$

  3. $10^{th}$

  4. $9^{th}$

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Correct Option: C
Explanation:

The vagus nerve historically cited as the pneumogastric nerve, is the tenth cranial nerve or CN X, and interfaces with parasympathetic control of the heart, lungs, and digestive tract. The vagus nerves are paired but are normally referred to in the singular. It is the longest nerve of the autonomic nervous system in the human body.


So the correct option is '10th'.

Vagus nerve is

zoology nervous system of man pns divisions of nervous system peripheral nervous system

  1. 5th cranial nerve

  2. 6th cranial nerve

  3. 9th cranial nerve

  4. 10th cranial nerve

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Correct Option: D

The space between the layers of the brain is filled with fluid is called ...........

bio-chemistry nervous system of man introduction to brain body fluid central nervous system

  1. Cerebrospinal fluid

  2. Pleural fluid

  3. Synovial fluid

  4. Aqueous humour

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Correct Option: A
Explanation:
A. Cerebrospinal fluid is a clear liquid produced within spaces in the brain called ventricles. Like saliva, it is filtrate of blood. It is also found inside the subarachnoid space of the meninges which surrounds both the brain and spinal cord.
B. Pleural fluid is a thin translucent fluid that fills the cavity between the parietal(outer) and visceral(inner) pleural layers surrounding the lungs.
C. Synovial fluid also called synovia is a vicious, non- Newtonian fluid found in the cavities of synovial joints.
D. Aqueous is a thin, watery fluid located in the anterior and posterior chambers of the eye.
So, the correct answer is "Cerebrospinal fluid".

The function of choroid plexus and ependymal cells is?

bio-chemistry nervous system of man introduction to brain body fluid central nervous system

  1. To produce lymph

  2. To produce blood

  3. To produce cerebrospinal fluid

  4. To produce endolymph

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Correct Option: A

The amount of cerebrospinal fluid in an adult healthy human being is about.

bio-chemistry nervous system of man introduction to brain body fluid central nervous system

  1. $200$ml

  2. $120$ml

  3. $60$ml

  4. $300$ml

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Correct Option: A

The function of cerebrospinal fluid does not include

bio-chemistry nervous system of man introduction to brain body fluid central nervous system

  1. Protection of brain and spinal cord by containing antibody

  2. Protection of delicate brain and spinal cord from shock

  3. As a medium for excretion of waste product

  4. Buoyancy to brain

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Correct Option: A
Explanation:

The primary function of CSF is to cushion the brain within the skull and serve as a shock absorber for the central nervous system. CSF also circulates nutrients and chemicals filtered from the blood and removes waste products from the brain.

Cerebrospinal fluid occurs

bio-chemistry nervous system of man introduction to brain body fluid central nervous system

  1. Between arachnoid and duramater

  2. Beneath piamater

  3. Between arachnoid and piamater

  4. Between duramater and cranium

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Correct Option: C