Neurons

Question 1

Soma (Cell Body)

(2)

Answer 1

• control centre of the neuron
• supports and maintains functioning of the neuron

Question 2

Dendrites

(2)

Answer 2

• receive information from other neurons
• conduct nerve impulses toward the soma

Question 3

Receptor Sites

(2)

Answer 3

• where the neurotransmitters bind to
• must be right chemical shape to bind

Question 4

Axon

Answer 4

• nerve fibre that carries information away from soma towards the axon terminals

Question 5

Myelin Sheath

(3) (N.O.R)

Answer 5

• layer of fatty tissue surrounding the axon
• acts as an insulator and allows faster transmission of electrical signal
• gaps between myelin known as Nodes of Ranvier

Question 6

Axon Terminal

(2)

Answer 6

• branches of an axon where neurotransmitters are discharged into the synaptic cleft
• has small sacs called vesicles which contain neurotransmitters

Question 7

Synapse vs Synaptic Cleft

(2)

Answer 7

Synapse
- the junction between two neurons

Synaptic Cleft
- the space between two neurons where the neurotransmitters are discharged into

Question 8

Action Potential

(2)

Answer 8

• electrical firing from the soma that sends nerve impulses (information) along the axon
• electrical communication within neurons