Nervous System

part of a neuron that receives information from other neurons

• axon
• dendrites
• myelin sheath
• synapse

Tags

NGSS.MS-LS1-2

nerve impulse

• action potential
• resting potential
• membrane potential
• synapse

What number(s) on the graph represents the Resting Potential?

• 1 and 2
• 1 and 5
• 2 and 3
• 3 and 4

When a neuron is depolarized, what are the first channels to open?

• Sodium
• Potassium
• Calcium
• ACTH

When a neuron is resting, the inside of the axon has a ____________ charge.

• positive
• negative

When a neuron is not engaged in an impulse.

• Resting potential
• Action potential
• Neural potential
• Synaptic potential

Which ions are involved in the electrical nerve impulse?

• Iodine and Sodium
• Potassium and Sodium
• Iron and Sodium
• Calcium and Iodine

What is the difference between white and grey matter?

• White matter is myelinated axons, gray matter is unmyelinated axons.
• White matter is unmyelinated axons, and grey matter is myelinated axons.
• White matter is sensory axons, and grey matter is motor axons.
• White matter is motor axons, and grey matter is sensory axons.

-70 mV is the measure of a

• Threshold Potential
• Action Potential
• Resting Potential
• End Point Potential

Tags

NGSS.HS-PS2-5

A membrane potential becoming less negative is called

• hyperpolarization
• depolarization
• repolarization
• polarization

Tags

NGSS.HS-PS2-5