Mastering A and P Nerves 1

anaxonic

Neurons that are rare, small, and lack features that distinguish dendrites from axons are called

multipolar

Neurons that have several dendrites and a single axon are called

vescicles

Neurotransmitters ready for release are stored in synaptic

1

On which structure do most neuron to neuron communications occur?

multipolar

The most abundant class of neuron in the central nervous system is

true

The structures labeled "1" are dendrites. Their membranes contain numerous chemically-gated ion channels.

neurotransmitter molecules

5?

centrioles

Most neurons lack ________ and so are permanently blocked from undergoing cell division.

autonomic

The ________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity.

carries sensory information

The afferent division of the PNS __________.

axon hillock

The axon is connected to the soma at the

both voltage-gated Na+ channels and voltage-gated K+ channels

Which type of membrane channels are found at label "3"?

Efferent neurons

________ carry motor information to peripheral effectors.

afferent neurons

________ carry sensory information to the CNS.

proprioceptors

________ monitor the position of skeletal muscles and joints.

cranial

________ nerves are nerves that connect to the brain.

spinal

________ nerves are nerves that connect to the spinal cord.

multipolar

________ neurons are the most common structural class in the CNS.

bipolar, unipolar, multipolar, anaxonic

recognized structural classification for neurons