crash course chapter 2 video quiz notes

Question 1

everything psychological is

Answer 1

biological

Question 2

neurons or ___

Answer 2

nerve cells

Question 3

brain is made of ____ neurons

Answer 3

billions

Question 4

4 different types of neurons

Answer 4

interneuorn,
sensory neuron
motor neuron
pyramidal cell

Question 5

3 basic parts of neuron

Answer 5

soma (cell body), dendrites, axon

Question 6

the soma (cell body) is the neuron’s

Answer 6

life support

Question 7

the dendrites do what

Answer 7

receive messages from other cells

Question 8

the axon does what

Answer 8

transmits electrical impulses to other parts of the body

Question 9

axon is sometimes covered by a layer of fatty tissue called the

Answer 9

myelin sheath

Question 10

the myelin sheath does what

Answer 10

speeds up the transmission of messages

Question 11

when the myelin sheath degrades, what disease onsets

Answer 11

multiple sclerosis

Question 12

a chronic, typically progressive disease involving damage to the sheaths of nerve cells in the brain and spinal cord

Answer 12

multiple sclerosis

Question 13

when do neurons transmit signals

Answer 13

when stimulated by sensory input or triggered by neighboring neurons

Question 14

contact points between neurons are called

Answer 14

synapses

Question 15

the synapses are on the

Answer 15

dendrites

Question 16

the gap between the axon and the synapse

Answer 16

synaptic gap

Question 17

natural, opiatelike neurotransmitters linked to pain control and pleasure

Answer 17

endorphins

Question 18

rev neurons up

Answer 18

excitatory neurotransmitters

Question 19

chill neurons out

Answer 19

inhibitory neurotransmitters

Question 20

a majory inhibitory neurotransmitter

Answer 20

gaba (gamma-aminobutyric acid)

Question 21

enables muscle action, learning, and memory

Answer 21

acetylcholine

Question 22

influence movement, learning, attention, and emotion

Answer 22

dopamine

Question 23

progressive neurological deterioration that can occur in middle or old age, due to generalized degeneration of the brain

Answer 23

alzheimer’s

Question 24

a long-term psychiatric disorder of a type involving a breakdown in the relation between thought, emotion, and behavior.

Answer 24

schizophrenia

Question 25

the body’s slow” chemical communication system; a set of glands that secrete hormones into the bloodstream

Answer 25

endocrine system

Question 26

chemical messengers that are manufactured by the endocrine glands, travel through the bloodstream, and affect other tissues

Answer 26

hormones

Question 27

glands that secrete the hormone of adrenaline

Answer 27

adrenal glands

Question 28

a hormone that stimulates growth in animal or plant cells,

Answer 28

growth hormone

Question 29

what gland secretes growth hormones

Answer 29

pituitary glands

Question 30

brain region controlling the pituitary gland

Answer 30

hypothalamus