Nervous System/Brain

thin branches that recieve messages from other cells

fat that insulates the neuron to speed up transmission

small bulbs on the axon that store neurotransmitters

large branches at the end of the neuron; sends messages away from the cell body to other cells

process by which neurotransmitters are brought back into the sending neuron

matter type responsible for transmission

matter type responsible for processing information

as a group, the steps it takes for a reflex to occur are referred to as:

a sensory neuron sends info to the CNS; this is called the __________ pathway

after the CNS formulates a response to stimuli, a motor neuron takes the information to the PNS; this is called the _________ pathway

a muscle or gland that responds to a stimulus

a sensory structure that picks up information about an internal or external stimulus

the acronym for the steps of the reflex arc

R.A.C.E.E. stands for:

condition where someone cannot see far away objects; also called near-sightedness

condition where someone cannot see close up objects; also called far-sightedness

condition where the lens of the eye becomes less flexible, and unable to focus on near objects; also called old eyes

the ability of the lens of the eye to thicken and focus on near objects

word for normal, 20/20 vision

eye structure that responds to black and white in dim light environments

eye structure that percieves color

part of the brain responsible for breathing/heartbeat and facial structure movement

located at the back-base of the brain; controls posture, balance, and subconcious muscle movement

located at the upper-back of the brain; controls vision

top-middle of the brain; sensory association, touch, and tase

controls motor function, thought association, and speech

lower-middle; auditory processing, smell, and interpretation of perceptions

the lobes of the brain make up this structure; controls personality, intelligence, learning, perception, and emotion

this structure connects the left and right hemispheres to allow communication