U6L2- Lecture Notes - The Nervous System - Nerve Impulse

Unit 6 - Neurophysiology - Nerve Impulse

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Poll

I can describe the events that lead to the conduction of a nerve impulse.

• 0 - Clueless

• 1 - Basic Knowledge - Need some tutoring

• 2 - Advanced Knowledge - Can apply it

• 3 - Expert - Can tutor others

Poll

I can explain how a nerve impulse is transmitted from one neuron to another.

• 0 - Clueless

• 1 - Basic Knowledge - Need some tutoring

• 2 - Advanced Knowledge - Can apply it

• 3 - Expert - Can tutor others

Multiple Choice

As long as inside is more ______ than outside, the cell stays at rest

• positive

• negative

Fill in the Blank

_______ is the major positive ion outside the cell

Multiple Choice

A stimulus ____________ the neuron’s membrane

• polarizes

• depolarizes

Multiple Choice

Place the following steps of a nerve impulse in their correct order.

1) Initial ionic conditions restored.

2) Resting membrane is polarized.

3) Repolarization.

4) Depolarization and generation of an action potential.

5) Stimulus initiates local depolarization.

6) Propagation of the action potential.

• 1,3,4,2,5,6

• 2,5,4,6,3,1

• 2,4,6,3,1,5

• 1,3,6,4,5,2

Multiple Choice

When the action potential reaches the axon terminal, the electrical charge opens _______ channels

• Calcium

• Sodium

• Potassium

• Nitrogen

Multiple Choice

True or False:

The electrical changes prompted by neurotransmitter binding are long lasting

• True

• False

Multiple Choice

Which type of reflex involves skeletal muscles?

• parasympathetic

• sympathetic

• autonomic

• somatic

Fill in the Blank

How many elements are there of a reflex?

Multiple Choice

Place in order the minimum elements in a reflex arc from the stimulus to the activity of the effector.

1) Afferent neuron

2) Effector organ

3) Efferent neuron

4) Receptor

5) Stimulus

• 4,5,2,1,3

• 5,2,4,3,1,

• 5,4,1,3,2

• 5,4,3,1,2

Poll

I can describe the events that lead to the conduction of a nerve impulse.

• 0 - Clueless

• 1 - Basic Knowledge - Need some tutoring

• 2 - Advanced Knowledge - Can apply it

• 3 - Expert - Can tutor others

Poll

I can explain how a nerve impulse is transmitted from one neuron to another.

• 0 - Clueless

• 1 - Basic Knowledge - Need some tutoring

• 2 - Advanced Knowledge - Can apply it

• 3 - Expert - Can tutor others