MCQs - Main Structures of the Nervous System

Main centers of the nervous system where correlation and integration of nervous information occurs in:

Brain and Spinal Cord

Peripheral Nervous System

---------------------------------

Ans: Brain and Spinal Cord

Brain and Spinal Cord are protected by:

Meninges

Cerebrospinal Fluid

Bones of the skull and the vertebral column

All of the above

------------------------------------

Ans: All of the above

Neuroglia of the Central Nervous System are:

Supportive tissue

Nerve cells

Nerve fibres

----------------------------

Ans: Supportive tissue

The long processes of a nerve cell are called:

Axons

Dendrite

Nerve fibers

Both A and B

Both A and C

----------------------

Ans: Both A and C

White color of White Matter is due to presence of:

Lipid material in the Myelin Sheaths

Carbohydrates in the Myelin Sheaths

Lymphatic tissue

------------------------------------

Ans: Lipid material in the Myelin Sheaths

Part of the nervous system concerned with the innervation of involuntary structures, such as the heart, smooth muscle, and glands within the body is:

Autonomic Nervous System

Brain and Spinal Cord

Peripheral Nervous System

-----------------------------------

Ans: Autonomic Nervous System

Sympathetic Innervation

Blausen.com staff. "Blausen gallery 2014". Wikiversity Journal of Medicine. DOI:10.15347/wjm/2014.010. ISSN 20018762.
Blausen.com staff. "Blausen gallery 2014". Wikiversity Journal of Medicine. DOI:10.15347/wjm/2014.010. ISSN 20018762. | Source

Which is the part of the nervous system preparing the body for an emergency?

Brain and Spinal Cord

Peripheral Nervous System

Sympathetic Nervous System

Para-sympathetic Nervous System

--------------------------------------------

Ans: Sympathetic Nervous System

The spinal cord begins superiorly at the:

C1 vertebra

Foramen magnum

Occipital lobe

-------------------------

Ans: Foramen magnum

THE SPINAL CORD & SPINAL TRACTS; PART 1 by Professor Fink

Spinal cord is continuous with:

Medulla oblongata

Midbrain

Pons

-------------------

Ans: Medulla oblongata

At the lower end of the spinal cord, prolongation of the pia mater that descends to attach to the back of the coccyx is:

Conus medullaris

Filum terminale

Spinal nerve roots

-----------------------

Ans: Filum terminale

Useful Tips

Motor roots of the spinal cord are Anterior

Sensory roots of the spinal cord are Posterior

How many pairs of spinal nerves in total?

8

12

5

31

------

Ans: 31

The H-shaped pillar seen on cross section of the spinal cord is:

Gray matter

White matter

----------------

Ans: Gray matter

Medulla oblongata, the pons, and the cerebellum are structures of:

Forebrain

Hindbrain

Midbrain

--------------

Ans: Hindbrain

Bridge like structure with large number of transverse fibers on its anterior aspect connecting the two cerebellar hemispheres is:

Brain stem

Mid brain

Medulla Oblongata

Pons

-------------

Ans: Pons

The median portion of the cerebellum connecting the two lateral hemispheres is:

Anterior commissure

Corpus callosum

Posterior commissure

Vermis

-------------------

Ans: Vermis

Brain Stem

"Brain sagittal section stem highlighted" by Patrick J. Lynch, variation by User:Hk kng - derivative of File:Brain human sagittal section.svg by Patrick J. Lynch, medical illustrator.
"Brain sagittal section stem highlighted" by Patrick J. Lynch, variation by User:Hk kng - derivative of File:Brain human sagittal section.svg by Patrick J. Lynch, medical illustrator. | Source

Cerebellum and its Connections

The cerebellum is connected to the midbrain by Superior cerebellar peduncles


The cerebellum is connected to the pons by Middle cerebellar peduncles


The cerebellum is connected to the medulla by Inferior cerebellar peduncles

The largest mass of gray matter are found in the interior of the cerebellum, embedded in the white matter is:

Caudate nucleus

Dentate nucleus

Fastigial nuclei

Putamen

------------------

Ans: Dentate nucleus

Which of the following ventricles in brain is surrounded by medulla oblongata, the pons, and the cerebellum?

Lateral

Third ventricle

Fourth ventricle

----------------------

Ans: Fourth ventricle

Cerebrospinal fluid within the central nervous system can enter the subarachnoid space through:

Lateral ventricles

Fourth ventricle

Foramen ovale

Foramen magnum

-----------------------

Ans: Fourth ventricle

Fourth Ventricle

"Gray734" by Henry Vandyke Carter - Henry Gray (1918) Anatomy of the Human Body (See "Book" section below)Bartleby.com: Gray's Anatomy, Plate 734. Licensed under Public Domain via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:Gray734.pn
"Gray734" by Henry Vandyke Carter - Henry Gray (1918) Anatomy of the Human Body (See "Book" section below)Bartleby.com: Gray's Anatomy, Plate 734. Licensed under Public Domain via Wikimedia Commons - https://commons.wikimedia.org/wiki/File:Gray734.pn | Source

Fourth Ventricle

Fourth ventricle is connected superiorly to the third ventricle by the cerebral aqueduct

Inferiorly, fourth ventricle is continuous with the Central canal of the spinal cord

Fourth ventricle communicates with the subarachnoid space through Three openings in the inferior part of the roof.

The narrow cavity of the midbrain which connects the third and fourth ventricles is cerebral aqueduct

Ventricles of the Brain

Large, egg-shaped mass of gray matter that lies on either side of the third ventricle is:

Caudate nucleus

Hypothalamus

Putamen

Thalamus

--------------------

Ans: Thalamus

The two cerebral hemispheres are connected by a mass of white matter called:

Anterior commissure

Corpus callosum

Posterior commissure

Vermis

-----------------------

Ans: Corpus callosum

Falx cerebri projects into:

Central fissure

Longitudinal fissure

Lateral fissure

Precentral gyrus

------------------------

Ans: Longitudinal fissure

Fan-shaped collection of nerve fibers, termed the corona radiata passing in the white matter to and from the cerebral cortex to the brain stem is:

Basal ganglia

Caudate nucleus

Corona radiata

----------------------

Ans: Corona radiata

The spinal cord terminates at:

L1

L2

S1

S2

------------

Ans: L1

Which of the following cell layers in the embryo differentiate to become Nervous System?

Ectoderm

Endoderm

Mesoderm

------------------

Ans: Ectoderm

Ectoderm is formed of which of the following epithelium?

Columnar

Cuboid

Squamous

-----------------

Ans: Columnar

Severe injury to the spinal cord is often prevented in the cervical region even with common occurrence of fracture dislocation is because of:

Large size of the vertebral canal

Large size of the spinal cord

Small size of the vertebral canal

Small size of the spinal cord

----------------------------------------

Ans: Large size of the vertebral canal

Respiratory failure and death occurs if the spinal cord is completely severed above:

C3-5

C6-7

T3-5

T6-7

-------------

Ans: C3-5

In fracture dislocations of the thoracic region, severe injury to this region of the spinal cord results because of:

Large size of the vertebral canal

Large size of the spinal cord

Small size of the vertebral canal

Small size of the spinal cord

----------------------------------------

Ans: Small size of the vertebral canal

In fracture dislocations of the lumbar region, nerve injury may be minimal because:

Of the large size of the vertebral foramen

Small size of the vertebral canal

The spinal cord in the adult extends down only as far as L1

Both A and C

------------------------------------

Ans: Both A and C

Lumbar Disc Herniation

In which of the following regions of the spinal cord, Herniated Intervertebral Discs are common?

Cervical

Lumbar

Thoracic

Sacral

------------------

Ans: Lumbar

In lumbar disc herniations, compression of the sensory posterior roots of fifth lumbar and first sacral nerve root can result in:

Sciatica

Parastheia

Sensory loss

All of the above

-------------------------

Ans: All of the above

Involvement of which of the following motor root weakens dorsiflexion of the ankle?

Fifth lumbar

First sacral

Second lumbar

Second sacral

-----------------------

Ans: Fifth lumbar

Involvement of which of the following motor root weakens plantar flexion?

Fifth lumbar

First sacral

Second lumbar

Second sacral

------------------------

Ans: First sacral

In lumbar disc herniations, a large centrally placed protrusion may give rise to:

Bilateral pain

Muscle weakness

Acute retention of urine

All of the above

-----------------------

Ans: All of the above

The anatomical structures through which a lumbar puncture needle goes through before it enters the subarachnoid space are:

Skin

Superficial fascia

Supraspinous ligament

Interspinous ligament

Ligamentum flavum

Internal vertebral venous plexus

Dura mater

Arachnoid mater

All of the above

------------------------

Ans: All of the above

When the patient is in the recumbent position, the normal CSF pressure (mm of H2O) is about:

60 to 150

90 to 160

120 to 170

150 to 180

----------------

Ans: 60 to 150

Which of the following arteries is commonly damaged in epidural haematoma?

Anterior communicating

Anterior cerebral

Middle cerebral

Middle meningeal

------------------------

Ans: Middle meningeal

An epidural haematoma at the in the region of the anterior inferior portion of the parietal bone exerts local pressure on the:

Broca’s area

Central sulcus

Precentral gyrus

Wernicke’s area

------------------------

Ans: Precentral gyrus

Subdural hemorrhage results from tearing of the:

Meningeal artery

Meningeal veins

Superior cerebral veins

-----------------------------

Ans: Superior cerebral veins

Subarachnoid hemorrhage can result from:

Rupture of a cerebral aneurysm

Arteriovenous malformation

Taruma

All of the above

---------------------------

Ans: All of the above

Intracerebral hemorrhage in hypertension is generally due to rupture of:

Anterior cerebral artery

Lenticulostriate artery

Middle meningeal artery

Posterior communicating artery

------------------------------------------

Ans: Lenticulostriate artery

Lenticulostriate artery is a branch of which of the following arteries?

Anterior cerebral

Middle cerebral

Posterior cerebral

-----------------------

Ans: Middle cerebral

A spinal tap should not be performed in patients with suspected intracranial tumor because it may lead to:

Sudden displacement of the cerebral hemisphere through the notch in the tentorium cerebelli into the posterior cranial fossa

Herniation of the medulla oblongata and cerebellum through the foramen magnum

Death

All of the above

-----------------------------

Ans: All of the above

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Comments 16 comments

thumbi7 profile image

thumbi7 15 months ago from India Author

Hi jainswati

Thanks for the visit and comment


jainswati profile image

jainswati 15 months ago from Germany

Good information on nervous system


thumbi7 profile image

thumbi7 16 months ago from India Author

Hi ChitrangadaSharan

Thanks for the visit and comment


ChitrangadaSharan profile image

ChitrangadaSharan 16 months ago from New Delhi, India

Very useful and informative hub about Nervous system. All of us must be aware of our body, its parts and its functioning, such that we may take care of it. Your questions are well structured and easy to understand and thanks for providing the answers as well.

Thanks for sharing this useful hub! Voted up!


thumbi7 profile image

thumbi7 17 months ago from India Author

Hi Mary

Thank you for the visit


tillsontitan profile image

tillsontitan 17 months ago from New York

There's a lot of information here. Some known, some unknown. This is a hub to be digested slowly and read again!

Voted up, useful, and interesting.


thumbi7 profile image

thumbi7 17 months ago from India Author

Hi lex123

Thanks for the visit and comment


lex123 profile image

lex123 17 months ago

Good information about the main structures of the nervous system in one page.


thumbi7 profile image

thumbi7 17 months ago from India Author

Thank you Mr. Venkatachari M

Thanks for the visit and comment


Venkatachari M profile image

Venkatachari M 17 months ago from Hyderabad, India

I never have any knowledge of all these things. Only things I know is medulla oblongata and spinal cord.


thumbi7 profile image

thumbi7 17 months ago from India Author

Hi Thelma Alberts

Thanks for the visit and comment


Thelma Alberts profile image

Thelma Alberts 17 months ago from Germany

Wow! Very interesting. This was the first time I made this nervous system questions and answers. I answered some of them although it was 3 decades ago that I have learned this at school. Thanks for sharing.


thumbi7 profile image

thumbi7 17 months ago from India Author

Hi BlossomSB

Thanks for the comment


BlossomSB profile image

BlossomSB 17 months ago from Victoria, Australia

So interesting! I had forgotten so much of this, but I guess it was a few years ago. Thank you.


thumbi7 profile image

thumbi7 17 months ago from India Author

Thank you Dr. Pran Rangan


Dr Pran Rangan profile image

Dr Pran Rangan 17 months ago from Kanpur (UP), India

I got a quick revision of the nervous system. I had forgotten so much. Thanks for sharing.

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