11.1 Flashcards
1
Q
synapse
A
the connection between..
2 neurons
neuron and an effector
2
Q
neuromuscular junction
A
synapse between a neuron and a muscle cell
3
Q
synaptic cleft
A
the space between the pre and post-synaptic neuron
4
Q
neurotransmitters
- carries signal from (2)
- excitatory
- inhibitory
A
- carries signal from (2)
one neuron to another
one neuron to and effector (gland or muscle) - excitatory
Na+ open = Na enters
depolarized = action potential transmission - inhibitory
K+ open = K+ flow out
hyper-polarization = no action potential
5
Q
enzymes that break down neurotransmitters cause membrane to what…(2)
A
- close its channels
- repolarize
6
Q
synaptic vesicle contains the…
why is Ca+ important
A
neurotransmitters
Ca+ enable synaptic vesicles to release it neurotransmitters
7
Q
pre-synaptic membrane
A
- release the neurotransmitter
8
Q
post-synaptic membrans
A
- receives neurotransmitter
- has the receptors
9
Q
acetylcholine is
A
an excitatory (muscle) for neuromuscular junction
10
Q
cholinesterase is disrupted by..
A
sarin.. nerve gas
11
Q
no enzyme..
A
continuous excitation
12
Q
a lot of enzyme
A
neurotransmitter will not be permitted to do its job
