Selina solutions for Concise Biology Class 10 Icse chapter 10 - The nervous system [Latest edition]

The insulating sheath covering the neural axon is called.

Which one of the following pairs of brain part and its function is not correctly matched?

A mixed nerve is one which

Reflex action is controlled by the

Name the following:

The fluid that is present inside and outside the brain.

Name the following:

The junction between two nerve cells

Name the following:

The part of the brain which is concerned with memory

Name the following:

The part of the human brain which controls body temperature.

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Stimulus: Receptor:: Impulse: …………….

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Cerebrum: Diencephalon:: Cerebellum: ……………….

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Receptor: Sensory nerve:: Motor nerve: ……………….

Complete the following statement by choosing the correct alternative from the choice given in below :

The dorsal root ganglion of the spinal cord contains cell bodies of  ________ neurons.

Complete the following statements by choosing the correct alternative from the choices given in below :

Cerebellum is the part of the brain which is responsible for

Mention where in human bosy is corpus callosum located and state their main function:

Mention where in human bosy is the following located and state their main function:

central canal

State whether the following statement is true (T) or false (F).

The main component of the white matter of the brain is perikaryon.

State whether the following statement is true (T) or false (F).

The arachnoid layer fits closely inside the pia mater.

State whether the following statement is true (T) or false (F).

A double chain of ganglia, one on each side of the nerve cord belongs to the spinal cord.

State whether the following statement is true (T) or false (F).

Dura mater is the outermost layer of the meninges.

Differentiate between following pair with reference to the aspect in bracket.

cerebrum and cerebellum (function)

Differentiate between following pair with reference to the aspect in bracket.

sympathetic nervous system and para – sympathetic nervous system (overall effect on body)

Differentiate between following pair with reference to the aspect in bracket.

Sensory nerve and motor nerve (direction of impulse carried)

Differentiate between following pair with reference to the aspect in bracket.

medulla oblongata & cerebellum (function)

Differentiate between following pair with reference to the aspect in bracket.

cerebrum and spinal cord (arrangement of cytons and exons of neurons).

Given below is a structure, write its special functional activity.

Cerebellum and ____________.

Given below is a structure, write its special functional activity.

Myelin sheath and ……………

Write the function of synapse.

Write the function of Association neuron.

Write the function of medullary sheath.

Write the function of Medulla obiongata.

Write the function of cerebellum.

The main function of Cerebrospinal fluid

Explain the following term :

Motor nerve

Explain the following term :

Autonomic nervous system

Explain the following term :

Conditioned reflex

Explain the following term :

Association neuron

Explain the following term :

Gray matter

Rearrange the following in correct sequence pertaining to what is given within bracket at the end.

Effector …….. sensory neuron ………. Receptor…….. motor neuron………. Stimulus……. central nervous system………. Response (Reflex arc)

Rearrange the following in correct sequence pertaining to what is given within bracket at the end.

repolarization……. Depolarization…….. Resting….. (polarised) (during conduction of nerve impulse through a nerve fibre)

Rearrange the following in correct sequence pertaining to what is given within bracket at the end.

axon endings ……… nucleus …….. Dendrites ……… axon…….. perikaryon ………. Dendron……. (Neutron structure)

Rearrange the following in correct sequence pertaining to what is given within bracket at the end.

diencephalon ………. Cerebellum …….. medulla oblongata ………. Pons ….. Cerebrum ……. mid-brain (sequence of parts of human brain).

What is meant by reflex action?

State whether the following is simple reflex, conditioned reflex or neither of the two:

Sneezing: …………….

State whether the following is simple reflex, conditioned reflex or neither of the two:

Blushing: ……………….

State whether the following is simple reflex, conditioned reflex or neither of the two:

Contraction of eye pupil: …………………..

State whether the following is simple reflex, conditioned reflex or neither of the two:

Lifting up a book: …………………..

State whether the following is simple reflex, conditioned reflex or neither of the two:

Knitting without looking: …………………..

State whether the following is simple reflex, conditioned reflex or neither of the two:

sudden application of brakes of the cycle on sighting an obstacle in front …………….

What are the advantages of having a nervous system?

Why do you call the spinal cord and the brain as the central nervous system?

What is the difference between reflex action and voluntary action?

Draw neat and labelled diagrams of a myelinated neuron

During a street fight between two individuals, mention the effects on the following organs by the autonomous nervous system, in the table given below : (one has been for you as an example).

Two hungry boys (A and B) enter a restaurant and find a table decorated as follows:

Boy B starts salivating but not A. Explain the reason for this difference.

Given below are a few situations. What effective change will occur in the organ/body part mentioned and which part (sympathetic or parasympathetic) of the autonomic nervous system brings it about?

Given below is the partially incomplete scheme of the components of peripheral nervous system. Fill up the blanks numbered (1) – (8):