PCAT Biology Study Guide Questions and
answers with 100% Complete Solutions |
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Neuron - ✔✔Basic unit of the nervous system
Cell body, axon, and dendrites - ✔✔Components of a neuron (3)
Axon - ✔✔Used for signal conduction
Dendrites - ✔✔Increase the area for connecting to other neurons or muscle
Synapse - ✔✔The place where signal tranission occurs
Acetylcholine - ✔✔A neurotransmitter
-70 mV - ✔✔Standard resting membrane potential
,Components - ✔✔Consists of the brain and spinal cord
Meninges - ✔✔A covering of the central nervous system- surrounds brain
and spinal cord
Reflexes - ✔✔Certain movements involve sensory information which is
not processed in the brain
Sympathetic nervous system - ✔✔Part of autonomic nervous system that
speeds things up.
Parasympathetic nervous system - ✔✔Part of autonomic nervous system
that slows things down
Cerebrum, cerebellum, brain stem - ✔✔3 basic parts of the brain
,Cerebrum - ✔✔It's functions are processing of sensory information and memory
Cerebellum - ✔✔Receives information from muscles and sensory
receptors; controls balance and coordinates movement
Brain stem - ✔✔Controls many autonomic functions such as breathing and
heart beat
Cornea - ✔✔From surface of the eye
Lens - ✔✔Eye part just with anterior chamber
Iris - ✔✔The amount of light pass through the lens is controlled by
Retina - ✔✔Contains rods and comes which detect light
, Optic nerve - ✔✔Signal from the eye is sent to the brain via this
Outer ear - ✔✔Function is collecting sound and sending it to the eardrum
through the auditory canal
Middle ear - ✔✔Separated from the outer ear where vibrations picked up by
the ear drum get passed through a series of small bones
Tympanic membrane - ✔✔Another name for ear drum
Eustachian tube - ✔✔Connects the middle ear to the pharynx
Equalize pressure - ✔✔Function of the middle ear
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