Nervous System Part 2

Nerve impulses travel faster through unmyelinated axons.

• True
• False

The situation in which the axons from different parts of the nervous system lead to the same neuron is known as divergence.

• True
• False

The movement of sodium and potassium ions across a cell membrane is called a(n)

• resting potential
• impulse
• neurilemma
• synapse

Tags

NGSS.HS-LS1-3

The sodium potassium pump allows

• potassium ions out slower than sodium
• sodium ions out slower than potassium
• potassium ions out faster than sodium

Tags

NGSS.HS-LS1-3

Nerve impulses jump from

• node to dendrite
• dendrite to node
• dendrite to synapse
• node to node

If a neuron responds at all, it responds completely. This is known as the

• threshold
• all-or-none response
• neuronal pool
• withdrawal reflex

The junction between 2 neurons is called the

• dendrite
• axon
• node of Ranvier
• synapse

Neurotransmitters are

• proteins
• hormones
• biochemicals
• impulses

Groups of neurons that make hundreds of synaptic connections are known as the

• withdrawal reflex
• all or none response
• neuronal pool
• meninges

The actual gap in the synapse is called the

• synaptic bridge
• synaptic vesicle
• synaptic membrane
• synaptic cleft