Flashcards in Review Chapter 9 Deck (22):
The part of a neuron that conducts impulses away from it's cell body.
The portion of a neuron containing the nucleus.
Highly branched input part of a neuron
Another name for a motor neuron
Groups of cell bodies outside the CNS
Unmyelinated axons of neurons, cell bodies and dendrites
Short neurons (active in Integration)
Neuron that conveys information from the CNS to an effector
The insulating material of peripheral neuron fibers
A bundle of myelinated fibers outside of the CNS
Nervous System Functions
Sensation, Integration, and Motor function
Provide support and protection for the nervous system, bind nervous tissue to blood vessels, form myelin, and serve phagocytic functions. They are small and abundant. Can form brain tumors known as gliomas.
Surrounds the sheath; only found in the axons of the PNS (produces Myelin)
Nerve cell- carries impulses
Node of Ranvier
Unmyelinated gap in the myelin sheath
Supports "rest and digest"
Neuron that conveys information from a receptor to the CNS
Branch of the nervous system described as
"Fight or flight"
Synaptic end bulb
Rounded structure at the distal end of an axon terminal
Bundle of many axons in the CNS
Myelinated axons of neurons, located in the outside part of the spinal cord and the inside part of the brain.