Different types of synpases

Question 1

Why do we need to get rid of neurotransmitters

Answer 1

• it could be permanently be sending action potentials

Question 2

How do we get rid of the neurotransmitters?

Answer 2

• break it down with the enzyme .
• ach is broken down by the aceytlcholineesterase and re taken up by the presynaptic membrane by endocytosis

Question 3

Why are synapses unidirectional?

Answer 3

• pre-synpatic do not have receptors
• Receptors only on post-synaptic membrane
• Ca2+ channels only presynaptic membrane
• No ach vesicles on the postsynaptic neurone.

Question 4

What are the different types of synpases?

Answer 4

• Instead of producing an EPSP (excitory post-synaptic potential) in the post synaptic neurone
• this can prevent an action potential from continuing instead of generating one
• They do this by causing hyperpolarisation in the post synaptic neurone