Explain Their Neurons Function. - Science and Technology 2


Explain their neurons function.



  • Sensory neurons: They conduct nerve impulses from the sense organs to the brain and the spinal cord.
  • Motor neurons: They carry impulses from the brain and the spinal cord to the effector organs of the body such as muscles and glands.
  • Association neurons: They integrate the functions of the sensory and motor neurons.
Concept: Central Nervous System (CNS)
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2015-2016 (March)


Name the following: Cells that assist the neuron in their function

Classify the following as voluntary and involuntary actions:
(a) Coughing
(b) Food getting digested
(c) Moving a table
(d) Kicking a ball
(e) Beating of heart
(f) Flying a kite

Name the following: The small gap between the consecutive neurons

Name the following: Part of the brain that coordinates the voluntary functions

Classify the following as voluntary actions and involuntary actions:

Sneezing, throwing ball, heartbeats, writing

What are the two types of nerves? Write their functions

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

Medulla oblongata controls

Name the three major divisions of the human nervous system.

Give the function of Olfactory nerve.

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

Mention the three functions of spinal cord.

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

Memory and intelligence are controlled by

  1. cerebrum
  2. medulla oblongata
  3. cerebellum
  4. spinal cord

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

Cerebellum maintains balance of the body,

Find the odd-one out, giving reason:

Axon, cell body, dendrite, cerebellum

Explain the structure of brain.

Name three parts of brain.

Answer the following question:
What is a chromosome? How many pairs of autosomes are present in human beings?

The sympathetic nervous system is a part of the central nervous system.

In the central nervous system, myelinated fibres form the white matter.

Match the following.

  Column I   Column II
i. oligodendrocytes a. Small sized, derived from monocytes and acts as macrophages
ii. Astrocytes b. Production and circulation of CSF
iii. Ependymal cells c. Mainly form the myelin sheath around central axon
iv. Microglia d. Star shaped and most abundant glial cells of CNS

All of the following statements regarding the human brain are correct, EXCEPT

Cerebro-spinal fluid performs following functions EXCEPT.

The function of the hypothalamus is/are ______

______ layer is in close contact of the CNS in human beings.

What are the two components of the central nervous system?

Name the part of the nervous system which helps in communication between the central nervous system and other parts of the body.


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