Nervous System Test

Front 1

The brain can distinguish a strong stimulus from a weak stimulus by.

Back 1

by the frequency of AP reaching it

Front 2

The choroid plexus is important for

Back 2

producing myelin in the CNS

Front 3

The surface of the cerebral hemispheres is

Back 3

Gray

Front 4

an EPSP will

Back 4

make it more likely that the post synaptic neuron will fire

Front 5

an IPSP will

Back 5

prevent the post synaptic neuron from firing

Front 6

Neurotransmitters are released from

Back 6

axon terminal of all neurons

Front 7

The enzyme monamine oxidase

Back 7

is used to hydrolyze norepinephrine

Front 8

reuptake mechanisms are effective for

Back 8

ending synaptic transmissions

Front 9

A drug which inhibits the reuptake of serotonin will

Back 9

prolong serotonins effects

Front 10

a cholinesterase inhibitor will have what effect

Back 10

enhance ACH effects

Front 11

A post synaptic potential

Back 11

always is a change in membrane potential and may be depolorization or repoloraziation

Front 12

mechanically gated channels are activated by

Back 12

touch pressure and vibration

Front 13

saltatory conduction occurs

Back 13

because of uneven distribution of voltage gated channels

Front 14

neurotransmitters are removed from synapse by

Back 14

diffusion, reuptake, enzyme degradation

Front 15

an IPSP may cause

Back 15

K+ channels to open, Cl- channels to close

Front 16

What is the function of the hypothalamus?

Back 16

regulate body temp

Front 17

What are the parts of the cerebrum

Back 17

tracts, cerebral cortex. corpus callosum, occipital lobe

Front 18

propreceptive info is from where

Back 18

muscles

Front 19

function of the corpus callosum

Back 19

allows communication between cerebral hemispheres

Front 20

The hypothalamus is connected by the infundibulum to

Back 20

the pituitary

Front 21

heart rate is controlled by

Back 21

medulla

Front 22

vision is processed by

Back 22

occipital lobe

Front 23

what makes CSF

Back 23

choroid plexus

Front 24

ependymal cells are found

Back 24

lining the spinal canal

Front 25

white matter of cns is made up of

Back 25

myelinated axons

Front 26

subarachnoid space is

Back 26

filled with CSF

Front 27

cerebral aquaduct connects

Back 27

3rd & 4th ventricles

Front 28

An injury to the medulla would cause

Back 28

inability to regulate breathing

Front 29

occipital lobe is responsible for

Back 29

vision

Front 30

What occurs during depolarizing phase?

Back 30

Na+ rush inward membrane potential changes, now more pos inside

Front 31

Describe the events that occur during repolarization phase

Back 31

K+ channels open slowly and Na+ channels close at same time

Front 32

Temporal summation

Back 32

one axon releasing NT over and over

Front 33

spatial summation

Back 33

many axons releasing at same time

Front 34

For an impulse to pass from receptors in the skin to cerebral cortex it takes how many neurons

Back 34

3

Front 35

the ventral root of a spinal nerve contains

Back 35

motor fibers

Front 36

lateral spinothalamic tract

Back 36

conveys pain and temp

Front 37

somatic efferent fibers end in

Back 37

skeletal muscle

Front 38

preprioceptive info is from

Back 38

muscles

Front 39

damage to ventral root of a spinal nerve will interfere with

Back 39

volantary movement

Front 40

tracts in the spinal cord are located in the

Back 40

dorsal white column

Front 41

fibers in the spinocerebellar tract are carrying

Back 41

information about stretch of muscles

Front 42

sensory information of the skin is interpreted in the

Back 42

postcentral gyrus

Front 43

what structure connects the motor cortex with the spinal cord

Back 43

cerebral nuclei

Front 44

cerebellum recieves imput from

Back 44

joints and muscles

Front 45

proprioception includes the ability to

Back 45

know how stretched muscles are

Front 46

a sensory neuron relays info from

Back 46

skin to spinal cord

Front 47

pyramidal pathway responsible for

Back 47

volantary movement

Front 48

plasticity refers to

Back 48

ability of neurons to establish new synapses with other neurons

Front 49

Plasticity is due to

Back 49

growth of new axon and dendrite endings on existing neurons

Front 50

What happens in a patient with a missing limb?

Back 50

the parts learn to control something else

Front 51

parts of the body that appear large on the precentral gyrus

Back 51

have brain neurons controlling relatively few muscle fibers.

Front 52

which part of the CNS makes muscle contractions smooth and purposeful

Back 52

cerebral nuclei

Front 53

Cerebrum fnx

Back 53

thinking

Front 54

thalamus fxn

Back 54

relays sensory information

Front 55

hypothalamus fxn

Back 55

controls body homeostasis

Front 56

midbrain

Back 56

sensory & motor tracts

Front 57

pons fxn

Back 57

volantary movement

Front 58

medulla fxn

Back 58

heart rhythm, breathing, blood vessel diam.

Front 59

cerebellum fxn

Back 59

posture and balence