part of neurons that receive signals
dendrites
largest part of the brain that is divided into two hemispheres
cerebrum
the nervous system is broken up into two major categories. the first one is the Central Nervous System (CNS) which is the brain and spine. the second one is the nerves and neurons in your body called _______
Peripheral Nervous System (PNS)
this receives signals for smell
olfactory bulb
a substance, natural or artificial, that alters the function of the body.
drug
part of neurons that sends signals to other neurons
axons
part of brain at the back of the skull that controls movement
cerebellum
(PNS) has two parts voluntary and involuntary. the voluntary part is called_________
Somatic Nervous System (SNS)
this gives you the sensation of taste
tastes buds AND smell
drug that increases alertness and activity
stimulant
the gap between two neurons where signals are sent between
synapse
relays signals between the brain and the spinal cord
medulla oblongata
(PNS) has two parts voluntary and involuntary. the involuntary part is called_________
Autonomic Nervous System (ANS)
part of the eye that has rods and cones that interpret light to send vision stimulus to the brain
retina
drug that slows down the central nervous system
depressant
the chemicals used as signals that are sent between neurons in the synapse
neurotransmitter
relays signals between the cerebrum and cerebellum
pons
(ANS) has two parts. one for when you are relaxed and one for when your stressed. the stressed one is called______________
Sympathetic Nervous System (SyNS)
snail like structure containing fluid that processes sound and sends it to the brain
cochlea
neurotransmitter commonly affected by drugs that's associated with pleasant feelings
dopamine
the complete cycle of a stimulus triggering your sensory neuron, sending a signal to your interneurons, and then sending a signal back to your motor neurons is called a _______________
reflex arc
tiny part of the brain that regulates homeostasis (temperature, appetite, water balance, etc.)
hypothalamus
(ANS) has two parts. one for when you are relaxed and one for when your stressed. the relaxed one is called______________
Parasympathetic Nervous System (PaNS)
tubes in the ear that help with balance
semicircular canals
dependance on a drug
addiction