module 3a

Question 1

what is the main interpreter of both your events in the body and outside

the brain

the cortex

the human nervous system

consciousness

Answer 1

the human nervous system

Question 2

your _____ and _____ are problem solvers that send and recieve info from your body

Schwan and ooligondenrites

brain and spinal cord

nervous and sensory system

Answer 2

brain and spinal cord

Question 3

what are specialized cells called

ganglion cells

guarded cells

supportive cells

glial cells

Answer 3

glial cells

Question 4

Which is the main cell triggered by electrical impulses to send chemical messages in the brain?

a
Glial cells

b
Neurons

c
Histones

d
Building blocks

Answer 4

b
Neurons

Question 5

________ are cells in the nervous system that provide support function.

Answer 5

glial cells

Question 6

what cell is an extension of the cell body that receives chemical messages from other neurons

glial cells

dendrites

terminal button

terminal button

Answer 6

dendrites

Question 7

The chemical messages are called neurotransmitters they can tell a neuron to activate or quiet down what is the scientific word for “quiet down”? “activate”?

Answer 7

inhibit. excite.

Question 8

what do neurotransmitters bind to

Answer 8

receptors

Question 9

As we grow and learn dendrites will __________________

spread and form new connection

constrict and produce more neurotransmitters

not change size because they never grow or shrink

Answer 9

spread and form new connection

Question 10

what are ions

Answer 10

electrically charged particles

Question 11

______ is found outside of the membrane while __________ is found inside the membrane

Na & protein; Potassium & iodide

Cl & K ; protein & Na

Na & Cl; K & protein

Answer 11

Na & Cl; K & protein

Question 12

What is the resting voltage of a channel

-55mV
-70V
-85V
-70mV

Answer 12

-70mV

Question 13

when the voltage is far away from zero the cell is considered

depolarized

polarized

repolarized

inhibitory

Answer 13

polarized

Question 14

The more ________ the neuron is, the more likely it is to activate (action potential) and send a neurotransmitter

hyperpolarized

depolarized

polarized

Answer 14

depolarized

Question 15

What is threshold value

Answer 15

-55mV

Question 16

Why are the voltage gated channels lined up next to each other.

Answer 16

when they sense positive charge from nearby channel they will open their gates to continue the successive reaction

Question 17

As cell channels begin to open concurrently they reach the end of the neuron what is this process called

repartition

action potential

propagation

Answer 17

propogation

Question 18

what happens once the action potential reaches the axon terminal

Answer 18

triggers release of neurotransmitters to the next neuron

Question 19

what does an excitatory neurotransmitter do? inhibitory?

Answer 19

increase probability of neuron being closer to action potential. decrease probability of neuron firing

Question 20

A neuron may receive inputs from both neurotransmitters at the same time T/F

Answer 20

T

Question 21

What would be the lock and key in reference to the neurotransmitter and receptor

Answer 21

lock=receptor
key=neurotransmitter

Question 22

what is the presynaptic neuron

Answer 22

The neuron that is sending neurotransmitters from the axon terminal

Question 23

what is the post synaptic neuron

Answer 23

neuron that is receiving neurotransmitter that will bind on receptor

Question 24

If GABA binds to a receptor this will cause the cell to experience what?

Answer 24

hyperpolarization (open chloride channels making overal charge more negative)

Question 25

if Acetylcholine is binds to a receptor?

Answer 25

polarization (it opens Na+ channel)