Synaptic Transmission

Question 1

Once in the presynaptic terminal, the action potential triggers the opening of ___ voltage-gated channels

Answer 1

Calcium (Ca+)

Question 2

When the Ca+ voltage-gated channels are open _____ enters to enter

Answer 2

Calcium

Question 3

Calciums that enters through Ca+ voltage-gated ion channels will act as a secondary messenger.
True or False

Answer 3

True

Question 4

Neurotransmitters will bind to the secondary messenger in the _______.

Answer 4

Synaptic Cleft

Question 5

Artificially injecting Ca+ into the terminal would trigger a neurotransmitter release. Even without an action potential.

True or False

Answer 5

True

Question 6

Once the Neurotransmitter is in the synaptic cleft, it will bind to the post-synaptic _____ receptor

Answer 6

Ionotropic

Question 7

The message is terminated by _____ in the synaptic cleft

Answer 7

enzymes

Question 8

The message (neurotransmitter) is terminated by ______ in the presynaptic terminal

Answer 8

endocytosis

Question 9

To be classified as a neurotransmitter a molecule must (2)

Answer 9

1. Be released by the presynaptic action
   potential
2. Have a post-synaptic receptor

Question 10

The 2 most common neurotransmitter in the CNS are:

Answer 10

Glutamate (excitatory)
GABA (inhibitory)

Question 11

_____ is the neurotransmitter found at the neuromuscular junction

Answer 11

Acetylcholine (ACh)

Question 12

Ionotropic receptors are _____ of the ion channel

Answer 12

part

Question 13

Metabotropic receptors are _____ of the ion channel and acts through metabolic pathway.

Answer 13

separate