MCQ ON BRAIN class 12 for NEET

MCQ ON BRAIN class 12 for NEET | BRAIN class 11 | MCQ BRAIN with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.

MCQ on BRAIN class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs question with Answers to help students understand the concept very well.

MCQ ON BRAIN is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23 , 2023-24

INTRODUCTION:-
Human brain is the only thing in the universe which is attempting to understand itself.

The study of brain in all expect is called encephalogy.

The brain is situated in the cranial cavity of the skull. The cranial bones and protect it from mechanical injury.
The brain forms about 98% of the weight of whole central nervous system.
The average human brain weight from 1200 to 1400 grams.
Brain has about 100 billion neurons.

The brain is soft, whitish , somewhat flattened organ. It is divisible into three main reasons, forebrain, mid brain and hind brain.

Fore brain forms the greater part of the brain. It is consists of three regions:-
Olfactory lobes, cerebral hemisphere or cerebrum and diencephalon.

Midbrain is significantly small.It consists of two heavy fibre tracts ,called cerebral peduncles on the ventral side .

Hind brain consists of cerebellum , pons varoli and medulla oblongata.

MCQ ON BRAIN class 12 for NEET

1. Most of the surface of the brain is formed of

(a) adrenal cortex
(b) renal cortex
(c) ovarian cortex
(d) celebral cortex

Ans (d) cerebral cortex

2. A nerve impulse leaves a neuron via the

(a) dendrites
(b) cyton
(c) axon
(d) nucleus

Ans. (c) axon

3. Synapse is a close proximity of

(a) two veins
(b) two arteries
(c) two neurones
(d) two lymphatics

Ans. (c) two neurones

4. Regulatory control of temperature , osmoregulation ,hunger ,
thirst is exercised by

(a) iter
(b) superior colliculi
(c) hypothalamus
(d) cerebellum

Ans.(c) hypothalamus

5.The lateral ventricles of the brain open into the third ventricle via

(a) foramen of magendie
(b) foramen magnum
(c). Foramen of monro
(d) none of these

Ans.(c) foramen of monro

6. The respiratory centres are located in the

(a) cerebellum
(b) cerebrum
(c) medulla oblongata
(d) optic lobes

Ans.(c) medulla oblongata

7. Origin of brain is

(a) endodermal
(b) peridermal
(c) mesodermal
(d) ectodermal

Ans.(d) ectodermal

8. Nervous band connecting the two cerebral hemispheres is

(a) Corpus albicans
(b) Corpus callosum
(c) Corpus striatum
(d) Corpus spongiosum

Ans.(b) corpus callosum

9. Most of the neurons of our body are

(a) unipolar
(b) bipolar
(c) multipolar
(d) pseudounipolar

Ans. (c) multipolar

10. Third ventricle of the brain is located in the

(a) cerebrum
(b) cerebellum
(c) pons varoli
(d) diencephalon

Ans. (d) diencephalon

11.Cerebrospinal fluid is found in the

(a) brain
(b) spinal cord
(c) around the brain
(d) all the above

Ans.(d) all the above

12.It maintains posture , equilibrium and muscles tones

(a) cerebrum
(b) cerebellum
(c) pons varoli
(d) medulla oblongata

Ans . (b) cerebellum

13. It transmits impulses from one side of the cerebellum to the other and from medulla to higher centres in the brain.

(a) cerebellum
(b) medulla oblongata
(c) pons varoli
(d) crura cerebri

Ans.(c) pons varoli

14. The largest part of the brain , forming four- fifth of its weight

(a) cerebellum
(b) cerebrum
(c) medulla oblongata
(d) pons varoli

Ans. (b) cerebrum

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15. They carry sensory impulses from the medulla oblongata and the spinal cord to the thalami

(a) cerebellum
(b) cerebrum
(c) medulla oblongata
(d) cruca cerebri

Ans.(d) Cruca cerebri

16. The brain is surrounded by …… protective coats of connective tissue besides the bony cranium.

(a) three
(b) two
(c) four
(d) five

Ans.(a) three