Tag: nervous system of man

Questions Related to nervous system of man

Choroid plexus produces 

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

  1. Lymph

  2. Endolymph

  3. Cerebrospinal fluid

  4. All the above

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Correct Option: C

Fluid found between piamater and arachnoid is

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

  1. Subdural fluid

  2. Cerebrospinal fluid

  3. Tissue fluid

  4. Lymph

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Correct Option: B

The amount of CSF in the cranial cavity is

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

  1. 500 ml

  2. 140 ml

  3. 1 litre

  4. 1.5 ml

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Correct Option: B
Explanation:

The total volume of CSF in the adult ranges from 140 to 270 ml. The volume of the ventricles is about 25 ml. CSF is produced at a rate of 0.2 - 0.7 ml per minute or 600-700 ml per day.

Ventricles of brain are filled with a fluid called

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

  1. Lymph

  2. Endolymph

  3. Plasma

  4. Cerebrospinal fluid

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Correct Option: D

What is pH of cerebrospinal fluid

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

  1. 1.23

  2. 6.82

  3. 7.00

  4. 7.33

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Correct Option: D

Cerebrospinal fluid is present

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

  1. Beneath the pia mater

  2. Between pia mater and arachnoid mater

  3. Between arachnoid and dura mater

  4. In extra dura mater

  5. Between the dura mater and cranium

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Correct Option: B
Explanation:

Cerebrospinal fluid (CSF) is a clear, colorless body fluid found in the brain and spine. It is located in the subarachnoid space between the arachnoid mater and the pia mater. It acts as a cushion for the brain's cortex by providing mechanical and immunological protection to the brain inside the skull. Hence option B is correct.

Which of the following forms the cerebrospinal fluid?

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

  1. Choroid plexus

  2. Dura mater

  3. Arachnoid mater

  4. Cerebrum and spinal cord

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Correct Option: A
Explanation:

The choroid plexus is a nerve complex in the ventricles of the brain, where cerebrospinal fluid (CSF) is produced. The choroid plexus consists of modified ependymal cells. 

The function of cerebrospinal fluid surrounding CNS is to 

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

  1. Protect the brain from external jerks

  2. Provide nourishment and ${O _2}$ to the brain

  3. Take away unwanted substance from the brain

  4. All of the above

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Correct Option: D

The cerebrospinal fluid passes out from the ventricle of medulla oblongata into the space between meninges of brain through

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

  1. Foramen of Monro

  2. Foramen of magnum

  3. Foramen of Magendie and Luschka

  4. Foramen ovale

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Correct Option: C

.......... fluid is found in ventricles of the brain.

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

  1. Sinovial

  2. Cerebrospinal

  3. Serum

  4. Plasma

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Correct Option: B
Explanation:

Cerebrospinal fluid (CSF),  is an alkaline fluid present in the brain and spinal chord. It is formed primarily, in the ventricles of the brain. It supports the brain and provides lubrication between surrounding bones and the brain and spinal cord. It act as buffer for the cerebrum.
So, the correct answer is option B.