How Nerve Cells Work

Question 1

CNS contains about _ billion neurons

Answer 1

200

Question 2

On average, each neuron communicates with _ other nerve cells

Answer 2

Thousands

Question 3

Dendrite is the _ side of a neuron

Answer 3

Input

Question 4

Dendrite is responsive to _ released from other neurons

Answer 4

Chemical messengers

Question 5

Axon hillock adds up info received from dendrites and _

Answer 5

Generates nerve impulse accordingly

Question 6

Axon hillock is located _ attached to cell body

Answer 6

First part of axon

Question 7

_ release neurotransmitters

Answer 7

Synaptic terminals

Question 8

Dendrite comes from Greek ‘dendros’ meaning _

Answer 8

Tree

Question 9

Dendrites transduce (convert) chemical info into small electrical impulses which are then conveyed to _

Answer 9

Cell body

Question 10

Greater part of neuron is made up of _

Answer 10

Cell body

Question 11

Region in cell body called axon hillock collates all small nerve impulses generated by dendrites and initiates _ accordingly

Answer 11

Action potentials

(Nerve impulses)