NEU 409 Exam 1 Kahoot

Question 1

afferent signals carry BLANK Info; efferent signals carry BLANK Info

Answer 1

Sensory
Motor

Question 2

During which period/phase would it take a larger than normal stimulus to trigger an action potential?

Answer 2

Relative refactory period

Question 3

what primary purpose do dendrites serve?

Answer 3

To receive neural signals

Question 4

Neurons function to communicate in the nervous system where as glial cells support nervous system function

true or false

Answer 4

true

Question 5

The two driving forces of ion movement across the membrane of a neuron when at resting potential

Answer 5

concentration and voltage gradient

Question 6

Ion BLANK require additional energy ATP to operate but Ion BLANK do not

Answer 6

pumps
channels

Question 7

If neural integration is analagous to American goverment which of the following does the preseident represent?

Answer 7

Axon Hillock

Question 8

The chemical phase of neural communication Involves NT

true or false

Answer 8

True

Question 9

when a neuron is at resting potential it has a greater positive charge inside the neuron than outside

true or false

Answer 9

false

Question 10

which of the following glial cells produce myelin in the CNS

Answer 10

Oligodendrocytes

Question 11

Which phase in which K moves out of the neuron is called what?

Answer 11

repolarization

Question 12

Myelin is located on the BLANCK and helps to improve BLANCK

Answer 12

axon
efficeincy of communication

Question 13

A change in a neurons potential causing it to change from negative to positive and back to negative again

Answer 13

AP

Question 14

Which is not a type of neuron?

Multipolar Bipolar Astrocyte Unipolar

Answer 14

Astrocyte - star shape of glial cells

Question 15

A space where NT communicate signals between neurons

Answer 15

Synapse

Question 16

The phase when Na quickly floods into neuron?

Answer 16

depo

Question 17

The phase when inside of the neuron becomes more negative than resting potential

Answer 17

hypo

Question 18

The four principal ions relevant for signaling

Answer 18

Na, Cl, K, Ca

Question 19

which ion causes synaptic vesicles to move toward the end of the axon and release NT into the synapse

Answer 19

Ca

Question 20

VG Channels allow any Ion to pass through when open

true or false

Answer 20

false

Question 21

What are the three types of gating mechanisms for ion channels?

Answer 21

Ligand
VG
Mechanical

Question 22

the electrical phase of neural communication involves changes in voltage gradients

true or false

Answer 22

true

Question 23

If excitatory signals accumulate and voltage inside of a neuron reaches threshold what will happen?

Answer 23

AP will propogate down the axon of the neuron

Question 24

which nervous system cells are responsible for communication within the nervous system?

Answer 24

Neuron

Question 25

which nervous system cells are responsible for producing myelin in the CNS?

Answer 25

Oligodendroglia

Question 26

Dendrites receive signals, and axons send signals true or false

Answer 26

true

Question 27

Astrocytes are found in the CNS and satellite cells are found in the PNS true or false

Answer 27

true

Question 28

what is rapid change in memebrane polarity causing a signal to move or propogate down the axon?

Answer 28

Depo

Question 29

which term refers to where neurons connect with each other?

Answer 29

synapse

Question 30

what term is associated with the fact that neurons either fire or do not fire?

Answer 30

all or none princple

Question 31

which term means toward midline or the middle of the body?

Answer 31

medial

Question 32

what part of the nervous system includes cranial and spinal nerves?

Answer 32

peripheral

Question 33

which term means same side?

Answer 33

ipsilateral

Question 34

what part of the nervous system includes brain and spinal cord?

Answer 34

central

Question 35

which body section cuts the body down into top and bottom portions?

Answer 35

transverse

Question 36

which term means towards the back?

Answer 36

posterior

Question 37

which nervous system cells make myelin in PNS?

Answer 37

Schawann

Question 38

which term means opposite sided?

Answer 38

contralateral

Question 39

function of dendrites?

Answer 39

to recive electrochemical signals from other neurons