nervous system 16.6

Question 1

neurons

Answer 1

receive and transmit electrical or chemical signals

Question 2

glia

Answer 2

cells that support functions of neurons

Question 3

dendrites

Answer 3

receive messages from other neurons at synapse junctions

Question 4

synapse

Answer 4

where communication between neurons happens

Question 5

membrane potential

Answer 5

difference in charge outside/inside the nerve cell

Question 6

depolarization

Answer 6

happens when a neurotransmitter activates a neuron to open its ion channels on the cell membrane, and is a decrease in the voltage across the membrane

Question 7

action potential

Answer 7

a cascade of sodium ions down a cell membrane causing depolarization, pretty much a domino effect

Question 8

axon

Answer 8

sends signals from cell body to synapse

Question 9

myelin sheath

Answer 9

made by glial cells, protects axon

Question 10

neurogenisis

Answer 10

when a father neuron and a mother neuron love each other very much :0

Question 11

how many glial cells are there in the brain

Answer 11

a fucking fuck ton like 10x as many as neurons what the actual fuck

Question 12

glial cells do

Answer 12

guide neurons to other neurons, protect from ions/harmful chemicals, provide myelin sheath

Question 13

synaptic cleft

Answer 13

its a wideeeee worldddddd

Question 14

central nervous system

Answer 14

brain and spinal cord

Question 15

meninges

Answer 15

three layers of protective material

Question 16

cerebrospinal fluid

Answer 16

brain go float wheeee

Question 17

cerebral cortex

Answer 17

outer section of brain

Question 18

corpus callosum

Answer 18

connects two hemispheres together

Question 19

frontal lobe

Answer 19

front of brain, controls cognitive processes

Question 20

parietal lobe

Answer 20

top of brain, processes touch and proprioception

Question 21

occipital lobe

Answer 21

back of brain, vision

Question 22

temporal lobe

Answer 22

base of brain, sounds

Question 23

hippocampus

Answer 23

memory, inside of the temporal lobe

Question 24

basal ganglia

Answer 24

connects motor control areas of brain and also motivation (lots of dopamine in here)

Question 25

thalamus

Answer 25

receives motor and sensory inputs from motor cortex and sends it to cerebral cortex, regulates consciousness and sleep states

Question 26

hypothalamus

Answer 26

controls endocrine system and body temperature

Question 27

limbic system

Answer 27

regulates emotion, fear/motivation, includes thalamus, amygdala, hypothalamus

Question 28

amygdala

Answer 28

fear

Question 29

cerebellum

Answer 29

base of brain on top of brainstem, movement

Question 30

brainstem

Answer 30

controls breathing, swallowing, sleeping, walking, and motor/sensory information integration

Question 31

peripheral nervous system

Answer 31

connection between the central nervous system (brain/spinal cord) and the rest of the body

Question 32

autonomic nervous system

Answer 32

controls body functions without conscious control

Question 33

sensory-somatic nervous system

Answer 33

internet but between brain and skin/muscles/sensory organs

Question 34

sympathetic nervous system

Answer 34

oh fuck dude oh shit oh fuck is that a fucking snake???? oh shit bro im full of adrenaline and the fight or flight response i think thats a fucking snake bro

Question 35

parasympathetic nervous system

Answer 35

dude stop freaking out about the snake its ok now lets go sleepy time and slow down heart rate its chill