Selina solutions for Concise Biology [English] Class 7 ICSE chapter 6 - Nervous System [Latest edition]

Put a tick mark (✓) against the correct alternative in the following statement:  

Medulla oblongata controls

Put a tick mark (✓) against the correct alternative in the following statement: 

 Spinal cord is an extention of:

Put a tick mark (✓) against the correct alternative in the following statement: 

Body posture is maintained by:

Write one word in the space provided to complete the second pair of the related words pertaining to the nervous system. 

Memory: cerebrum:: breathing:
Balance: cerebellum:: reasoning:

 Name three major divisions of the human nervous system. 

Name the three main parts of the human brain. 

Given here is the diagram of a neuron. Name the parts numbered 1-6  

With the help of a suitable diagram describe the structure of a neuron. 

Briefly describe the structure of the cerebrum in the human brain, and mention its functions.

Mention the three functions of the spinal cord. 

Describe three kinds of nerves, giving the example of each.

What are voluntary and involuntary actions? Which part of the nervous system controls them?

Multiple choice question. Tick (✓) the correct choice: 

Nervous system in humans consists of

Fill in the blank: 

Basic structural unit of the nervous system is the ..................

Fill in the blank: 

Central nervous system consists of ................. and ................

Fill in the blank: 

A neuron consists of ..................... and ...................

Fill in the blank:

The neurons carrying impulses from the brain to the muscles are called ..........................

Fill in the blank: 

Peripheral nervous system consists of ...................

Fill in the blank: 

The three main parts of the brain are ................................ and ............................

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

Each neuron consists of three parts called cell body, cyton, and axon. 

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

The largest part of the brain is the cerebrum.

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

Cerebellum maintains the balance of the body.

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

There are 31 pairs of cranial nerves. 

Find the odd-one-out, giving reasons: 

Axon, cell body, dendrite, cerebellum

Define the following: 

Reflex arc  

Define the term:

Sensory neuron

Define the following: 

Motor neuron:   

Define the following: 

Neuron  

Describe the two parts of the nervous system. 

What are the nerves? Mention the types of nerves found in humans.

Explain the structure of the brain.

Compare the nervous system and the endocrine system.