1peripheral nervous system (PNS)
the sensory and motor neurons that connect the CNS to the rest of the body
2Central nervous system (CNS)
The brain and spinal cord
3Neuron
Nerve cell that receives and sends info
4Cell body (soma)
The nucleus and stuff of the nerve cell
5Dendrites
Little trees that receive info (lightning strikes)
6Axon
Little roots that transmit info
7Myelin sheath
Fatty sheath that can help transmit info and insulates
8Glial cells
Forms the myelin sheath and protects/supports neurons
9Action potential
Neural impulse going through axon (bullet/vomit shot)
10Threshold
How much is needed fo the trigger
11Refractory period
Reloading period
12All-or-none response
You either shoot the bullet or not
13Synapse
The gap between axon and another neuron's dendrite
14Nerves
Bunch of neuron axons bundled together
15Afferent (sensory) neurons
Transmit info from body to brain
16Efferent (motor) neurons
Transmit info from brain to body
17Interneurons
The middlemen between SAME
19Sympathetic
Fight/flight
23Endocrine system
The druggie system (chemicals and hormones)
24Hormones
Chemical messengers made by the endocrine
25Adrenal glands
Fight/flight glands that secrete epinephrine and noepinephrine
26Pituitary gland
Regulates growth and controls other endocrine glands (it's boss = hypothalamus)