COORDINATION REVISION 1

Question 1

What are the TWO major divisions of the nervous system?

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0

Question 2

The functional cell of nervous system is called

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neuron

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neurons

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Neuron

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Neurons

Question 3

The resting membrane potential of axon's membrane is _____ mV

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-70

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- 70

Question 4

Which of these components are important for Resting Membrane Potential?

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0

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1

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2

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3

Question 5

In the presence of stimulus, _____ Voltage-gated ___ channel are open. Some Na+ diffuse ____ the axon. Membrane _________, until ______ potential , _____ mV.

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1

Question 6

During _____ phase of action potential, ____ voltage-gated Na+ channel are open. More ___ diffuse ____ the axon. Membrane _________, until _____ mV.

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0

Question 7

During falling phase of action potential, voltage-gated _____ channel are open.  ___ diffuse ____ the axon. Membrane _________, until _____ mV.

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3

Question 8

During ________ of action potential, ______voltage-gated K+ channel are open.  More ____ diffuse ____ the axon. Membrane _________, until below -70 mV.

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2

Question 9

The gap where one neuron communicate with another neuron, using neurotransmitter is called

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synapse

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Synapse

Question 10

Explain synapse (1)

The action potential arrives at axon ____ of ___ neuron. The presynaptic membrane ____. This triggers the voltage – gated ___ channels to open.

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0

Question 11

Explain synapse (2)

Ca2+ diffuse into the presynaptic membrane. Ca2+ promote the synaptic ___ to fuse with the ___ membrane. ___ is released into the synaptic cleft via __.

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3

Question 12

Explain synapse (3)

The neurotransmitter binds to __ of ligand – gated __channels on the __synaptic membrane. Ion channels are opened. __ diffuse into postsynaptic membrane. __synaptic membrane __.

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0

Question 13

Explain synapse (4)

__  __synaptic potential (EPSP) is generated. If the ___ is above threshold level, action potential is produced at __synaptic membrane.

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3

Question 14

Explain synapse (5)

Neurotransmitter will be ___ by enzymes in synaptic __. Neurotransmitter will be also transported back ___ the __synaptic membrane, via ___ transport.

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2

Question 15

Which of these are the similarities of impulse along axon and at synapse?

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0

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3

Question 16

Which of these are the criteria of impulse generated along the axon?

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1

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3

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4

Question 17

The plasma membrane of skeletal muscle cells is called

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sarcolemma

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Sarcolemma

Question 18

The endoplasmic reticulum of skeletal muscle cells is called

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sarcoplasmic reticulum

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Sarcoplasmic reticulum

Question 19

The cytoplasm of skeletal muscle cells is called

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sarcoplasm

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Sarcoplasm

Question 20

Which of these are the similarities between synapse and neuromuscular junction?

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0

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2

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3

Accepted Answer

4

# 1

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