Neuron

Question 1

Basic unit of nervous system is called?

Answer 1

Neuron

Question 2

Name two types of nervous system

Answer 2

CNS &PNS

Question 3

What is in CNS

Answer 3

Brain and spinal cord

Question 4

What is PNS?

Answer 4

motor And sensory neurons.

Question 5

Name three types of neuron cells? In difficult wording?

Answer 5

1.Inter (Association neuron)
2.Sensory (Afferent neuron)
Motor (Efferent neuron)

Inter neurons are present in brain only.

Question 6

Divide PNS

Answer 6

1.Autonomic(involuntary )
2.Somatic(Voluntry)

Question 7

Divide Autonomic

Answer 7

1.Sympathetic
2.Parasympathetic

Question 8

Membrane of neuron called

Answer 8

Neurolema

Question 9

Name main parts of neuron

Answer 9

1.dendrites
2.Soma
3.Axon

Dendrites carry nerve impulse to the neuron while axon sends out of the

Question 10

Cell body of neuron called as

Answer 10

Soma

It is found btw dendrite and axon

Cell body contains almost organelle i.e.nucleus.

Question 11

layer over neuron cell is?

Answer 11

Mylein sheath.

It is insulator

Question 12

what is colour of axon?

Answer 12

White

Due to presence of mylein sheath over it.

Question 13

The part where two neurons meet is called?

Answer 13

Synapses (junction)

Question 14

What is reflex action

Answer 14

A involuntRy response to sudden stumili which could cause damage to body if any action is not taken

Path of reflex action is called reflex arc.

Question 15

what is neurotransmitter ?

Answer 15

The chemicals which are released from neuron to Effector to do action or stop it.

They are chemical signzls generally

Question 16

Tell 2 types of neurotransmitters

Answer 16

1.Excitatory
2.Inhibitory

Excitatory gives signals for Action of effector while inhibitory stops t

Question 17

Examples of neurotransmitters

Answer 17

Accetylchline,epinephrine,nor-epinephrine,dopamine,serotine.

Question 18

Nissil ganules means

Answer 18

Ribosome + rough endoplasm reticulum