Protection of CNS

Q. What is corpora quadrigemina in the brain?

Q. The outer most of the three cranial meninges is:

1. piamater
2. myelin sheath
3. duramater
4. arachnoid membrane

Q.

What is the cavity where the brain is located?

Q.

State whether the following statements are true (T) or false (F).

(a) The main component of the white matter of the brain is perikaryon. (T/F)

(b) The arachnoid layer fits closely inside the pia mater (T/F)

(c) A double chain of ganglia, on eon each side of the nerve cord belongs to the spinal cord. (T/F)

(d) Dura mater is the outermost layer of the meninges. (T/F)

Q.

Which side of the brain controls memory?

Q.

Which one or more of the expressions in column II are appropriate for the items listed in column I? Write the correct matching pairs:

Column I	Column II
(i) The blind spot	(a) colour of the eye
(ii) the yellow spot	(b) shape of the lens
(iii) Ciliary muscle	(c) protective covering of the brain
(iv) Iris	(d) basic unit of brain
(v) Meninges	(e) free of rod cells
	(f) vitreous humour
	(g) centre of the retina
	(h) no sensory cells

Q.

The arachnoid layer fits closely inside the piamater.

1. True
2. False

Q.

The brain itself cannot feel the pain because the brain does not have pain receptors. Then how do you feel the pain when someone hits you on your head?

Q. Explain each part and their sub parts of human brain with their functions

Q. In humans, the vertebral column protects the ___________.

1. brain
2. spinal cord
3. liver
4. heart

Q. How many laminae are present in the greymatter of spinal cord? (1) Four(3) Eight(2) Six(4) Ten

Q. Outermost covering of the brain is
(a) dura mater
(b) pia mater
(c) arachnoid
(d) pericardium

Q.

What is the role of cerebrospinal fluid other than protecting brain and spinal cord against trauma?

1. Both A & B

2. Help in triggering impulse

3. Both B & C

4. Circulates nutrients and chemicals

5. Removes wastes products

Q.

The outermost protective covering of the brain is called as:

1. Cerebrum

2. Cranium

3. Scalp

4. Vertebral column

Q. The fluid present in the brain and spinal cord which serves as a pad to cushion the central nervous system is known as

1. Cerebrospinal fluid
2. Plasma
3. Blood
4. Lymph

Q. How is the brain protected from shocks and injuries?

Q.

Name the protective covering of the brain.

Q. Which of the following is a bony cover box in the skull that protects the brain?

1. Hindbrain
2. Midbrain
3. Cranium
4. Forebrain

Q. How the human brain get protected ? Give three points .

Q. Spinal cord is protected by the ______.​

1. vertebral column
2. cranium

Q. How is brain protected from injury and shock?

Q.

The forelimbs of mammals consist of_____.

1. all of these

2. wrist

3. upper arm

4. fore arm

Q.

The structures involved in the protection of the brain are -

1. Meninges

2. Cranium

3. Neurons

4. Cerebrospinal fluid

Q. Use words from the given list to complete the following paragraph. The words may be used once/more than once/not at all.
(Skull, Vertebral column, Piamater, Arachnoid membrane, Brain, Spinal cord, Meninges, Duramater).
The central nervous system is covered by three protective coverings collectively called _____. The outermost cover lying below the ______ and ______ is double thick and is called ____. The middle covering is thin and vascularised and is called _______. The innermost cover is a very thin delicate membrane and is closely stretched over the outer surface of _____and ____ and is called _______.

Q.

The outer most covering of the brain is called:

1. Vertebral column

2. Cerebrum

3. Scalp

4. Cranium

Q. Where are these located?
(i) Meninges
(ii) Ganglia
(iii) Cerebellum
(iv) Nodes of Ranvier
(v) Effector organs

Q.

Which of the following is the toughest layer in the meninges?

1. Pia mater

2. Arachnoid

3. Dura mater

4. None of these