A&P Section 2 Crossword

A cell consisting of a cell body, dendrite, and an axon that carries impulses throughout the nervous system
The rapid change in voltage on the inside of the axon from negative to positive and then back to negative
the chain of supporting cells enclosing the axons of many neurons forming an insulating layer
long branched extension that carries impulses away from the cell body
the insulating substance that surrounds may vertebrate nerve cells
largest part of the neuron in which metabolic activity takes place
small, branched extension that carries impulses toward the cell body
An electrical impulse that is carried by neurons in the nervous system
chemicals that are released when an action potential reaches the end of an axon
the ability of the brain to make long-term adjustments to long-term changes
a cell of nervous system that provides support, insulation and protection for neurons
The part of the motor division of the peripheral nervous system that controls voluntary movement
The part of the motor division that regulates activities NOT under conscious control
opening in the iris that regulates the amount of light that enters the eye
flexible structure behind the pupil, filled with a transparent protein that helps the eye to focus to see near or far objects
tough transparent layer at the surface of the eye that focuses light
transparent fluid that fills the large chamber behind the lens
photo receptor cells in the back of the eye that detect color, but are not very sensitive to light
disk of tissue located at the back of the cornea
photo receptor cells in back of eye that are extremely sensitive to light, but do not detect color
second-largest part of the brain at lower of head
deeply creased surface of the cerebrum
regulates the information that goes to the cerebral cortex
part of the brainstem that regulates flow of information between the brain and the rest of the body
largest, , most complex part of the human brain, has 4 lobes
region of connection tissue at the base of the brainstem
connects brain to the spinal chord
c-shaped, thick band of nerve fibers connecting the right and left cerebral hemispheres
short memory-holding tank: free-will component of brain
controls right side of body
controls left side of the body
controls speaking process
the area at the back of the eyeball where the optic nerve leads off to the brain
visual information is relayed from rods and cones to the brain
another dame for eyedotor
the region of the ear where vibrations enter
the thin membrane covering the opening to the inner ear that picks up the vibrations from the bones of the ear
ear drum