Write the Names and Functions of Three Parts of Human Nervous System in Which It is Divided. - Science and Technology 2


Write the names and functions of three parts of human nervous system in which it is divided.



The human nervous system has three components—central nervous system, peripheral nervous system and autonomic nervous system.
(i) Central nervous system (CNS): CNS consists of the brain and spinal cord. It controls and regulates all the activities of the body.
(ii) Peripheral nervous system (PNS): PNS consists of all the nerves and the nerve network which is present in the body. It is formed by the cranial and spinal nerves        which connect the body parts to CNS.
(iii) Autonomic nervous system (ANS): ANS is an involuntary nervous system. It controls involuntary actions and coordinates the organs such as the heart, stomach          and lungs, which do not function according to our will.

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2012-2013 (March)

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Differentiate between voluntary and involuntary movements.

State the different types of neurons.

What is the need for a system of control and coordination in an organism?

Draw the structure of a neuron.

Write a and b in the given flow chart of the neuron through which information travels as an electrical impulse.

Nervous system is absent in _____________.

Write the names of the indicated parts 1 to 6 in the following diagram:

What is the function of receptors and effectors in our body?

Name the structural and functional unit of the nervous system.

Draw a flow chart to show the classification of the nervous system into various parts.

What does the central nervous system in humans consist of? What is the job of the central nervous system?

The human body contains a large number of cells A which are very long and branched, and look like electric wires. The longest branch of this cell is B whereas there are many small branches C. Any two A cells do not join to one another completely in the human body. There is a microscopic gap D between every pair of adjacent A cells through which electric impulses can pass by the release of a chemical substance.
(a) What are cells A?
(b) What is the name of (i) branch B, and (ii) branches C?
(c) What is the microscopic gap D known as?
(d) What is the function of cells like A in the human body?
(e) The cells A are of three types. name the three types.

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

The structural and functional unit of nervous system is a

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

Nervous system in humans consists of

  1. brain and nerves
  2. brain and spinal cord
  3. brain, spinal cord and nerves
  4. none of the above

Fill in the blank:

Sense organs have special cells called ____________ for picking up information and transmitting it to the nerves.

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

The sound waves from the outer ear are carried by the middle ear to the inner ear.

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

Cochlea is a part of middle car.

Find the odd-one out, giving reasons:
Pinna, eardrum, cochlea, ear canal

Name the following:

Flap like structure of outer ear.

What are sense organs?

Give the functions of retina, pupil, and optic nerve.

 Name three major divisions of the human nervous system. 

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

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

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

Nervous system in humans consists of

Fill in the blank: 

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

Fill in the blank: 

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

Define the following: 

Reflex arc  

Define the following: 

Motor neuron:   

Describe the two parts of the nervous system. 

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

Answer the following questions briefly: 
Explain how the human eye adapts itself to bright light and dim light. 

Name the following:
The peripheral matter of the brain.

Name the following:
Outermost meningial membrane of spinal cord.

Name the following:
The biological term given to the protective membranes of the brain.

Draw a well-labeled diagram of a Neuron.

Draw the following diagram:
Draw a neat labeled diagram of a neuron.

Answer the following question:
What is a reflex action? Explain it with two examples. 

Give Reason:

 Why injury to medulla oblongata results in death?

Differentiate between:

Afferent and Efferent Nerve.

Give Technical Term:
The receptors which help in the sensation of taste.

State the Function:
Myelin sheath

 Choose the Odd One Out: 

 Choose the Odd One Out: 

Long answer question

Draw the neat labelled diagram of L. S. of the human brain.

Long answer question

Krishna was going to school and on the way, he saw a major bus accident. His heartbeat increased and hands and feet become cold. Name the part of the nervous system that had a role to play in this reaction.

Answer the following question.

Describe the nervous system of cockroach.

Explain the following in short.

What is a ganglion?

Degeneration of dopamine producing neurons in the CNS causes ______ disease.

Name the hormone secreted by Pars intermedia in lower vertebrates.

Enlist the meninges of human brain.

Describe the functional areas of Cerebrum.

Distinguish between

Sympathetic and parasympathetic nervous system.

The human nervous system is divided into ______ parts.

The functional unit of kidney is neuron.

The brain, the spinal cord and nerves form the nervous system.

List out the functions of Endocrine system and Nervous system.

The outermost of the three cranial meninges are ______

The node of Ranvier is found in ______

Vomiting centre is located in ______

______ and ______ increases the surface area of cerebrum.

Define stimulus.

Which acts as a link between the nervous system and endocrine system?

The cerebrum controls the voluntary actions of our body.

Pons helps in regulating respiration.

Which lobe is responsible sensation of pain?

How many pairs of cervical spinal nerves are present in humans?

Identify the CORRECT sequence of meninges. (From inside to outside)

Loss of function in which nerve would result in paralysis of muscles of mastication?

A deep longitudinal fissure divides the telencephalon into ______.

Identify the location of the arbor vitae.

Which of the following cranial nerves are mixed type?

What is the function of the red nucleus?

Which of the following is the correct description of Gyri and sulci?

All of the following are true for human brain, EXCEPT ______.

Nervous system is well developed in human and is composed of ______ or ______.

The nervous system consists of bones, cartilages, and joints.

Destruction of the anterior horn cells of the spinal cord would result in loss of ______. 

Hearing is controlled by ______

Visceral nervous system comprises of ______.

What is arbour vitae?

How many spinal nerves are there, and to which groups they belong?

Complete the following table:

No. Name of Nerve Type of Nerve Function
1. Optic    
2. Facial    
3. Hypoglossal    
4. Trigeminal    
5. Auditory    
6. Glossopharyngeal    

Trace the sequence of events which occur when you suddenly touch a hot object.

Think of situations where receptors do not work properly. What problems are likely to arise?


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