Nervous Tissue 2: Synapse

Question 1

which type of synapse is most common

Answer 1

Chemical Synapse

Question 2

Chemical synapse uses —-

Answer 2

Neurotransmitters

Question 3

Electrical synapse uses —-

Answer 3

Gap junctions (for ion movement)

Question 4

Example of electrical synapse

Answer 4

Cerebellum

Question 5

Describe histology of presynaptic (axon terminal) side

Answer 5

• Rich in mitochondria
• Rich in synaptic vesicles
• has seperate zones of dense cytoplasm

Question 6

Describe Histology of Synaptic cleft (inter-cellular space)

Answer 6

• 20-30nm wide
• Has delicate fibers & granules

Question 7

Describe histology of postsynaptic side

Answer 7

• Receptors
• Continous zone of dense cytoplasm
• Synaptic web: fixes neurotransmitter receptor in place and translates interaction