4

Question 1

Are functional units of the nervous system which conduct nerve impulse is?

Answer 1

Neurons or nerve cells

Specialized cells for the reception, conduction and transmission of electrochemical signals. Has many sizes and shapes

Question 2

Specialized connective tissue cells which acts as supporting cells is?

Answer 2

Glial cells

Supportive cells

Question 3

What’s the structure of neurons

Answer 3

• dendrites
• cell body (soma)
• axon

Question 4

Dendrites?

Answer 4

Branch-like extensions that receive impulses and carry them toward cell body

Question 5

Cell body (soma)?

Answer 5

Contains organelles

Question 6

Axon?

Answer 6

Single extension of the neuron that carries impulses away from the cell body.

Question 7

Axons have a thick insulating lipid layer called……..?

Answer 7

Myelin sheath

Question 8

• The axon branches out at ending to send impulses to many different neurons.
• Dendrites receive impulses from many other neurons

Answer 8

….

Question 9

What are the types of neurons?

Answer 9

1) sensory (afferent) neurons
2) interneuron
3) motor (efferent) neurons

Question 10

What is a common neurotransmitter?

Answer 10

acetylcholine

provides for communication between muscles and nerves