HBS New Unit

What number on the graph represents when the sodium potassium pump has reset the axon?

• 1

• 2

• 3

• 4

What number on the graph represents when sodium enters the inside of the axon?

• 1

• 2

• 3

• 4

A momentary reversal in electrical potential across the cell membrane that occurs when a cell has been activated by a stimulus.

• Electric Potential
• Potential Energy
• Action Potential
• Kinetic Potential

A substance contained in a vesicle that transmits nerve impulses across a synapse.

• Norotransmitter

• Neurotransmitter

• Electrotransmitter

• Synoptictransmitter

An automatic and often inborn response to a stimulus that involves a nerve impulse passing inward from a receptor to the spinal cord and thence outward to an effector (as a muscle or gland) without reaching the level of consciousness and often without passing to the brain.

• Reaction
• Reflex
• Reflection
• Reflects

The place at which a nervous impulse passes from one neuron to another.

• Synaptic gap
• Neural gap
• Synapse
• Neuraltransmitter

Hydrophilic portion of cell membrane?

• A
• B
• C
• E
  D

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