Pns And Reflexes

Front 1

What compromises the peripheral nervous system

Back 1

everything outside brain and spinal cord

Front 2

what are the stimulus types of sensory receptors

Back 2

1) special sensory receptors, 2) somatic sensory receptors and 3) visceral sensory receptors.

Front 3

what are the location types of sensory receptors

Back 3

1)Exteroreceptors- external enviornment, 2)Proprioreceptors-position in space and 3)Interoreceptors- internal enviornment

Front 4

type of receptor is a merkel disc

Back 4

tactile fine touch

Front 5

type of receptor is a meissner corpuscle

Back 5

fine touch vibration

Front 6

type of receptor is a pacinian corpuscle

Back 6

mechanoreceptor

Front 7

type of receptor is a ruffini corpuscle

Back 7

touch pressure distortion

Front 8

what is a muscle spindle

Back 8

stretch receptors in the skeletal muscle

Front 9

what is golgi tendon organ

Back 9

receptor sensitive to tension in a tendon

Front 10

sensation vs. perception

Back 10

sensation-the message that is sent to the brain.
Perception- the way the message is received or interpreted.

Front 11

what can be found in the dorsal roots of the spinal nerves

Back 11

sensory neurons

Front 12

what can be found in the ventral root of the spinal nerves

Back 12

sensory neurons

Front 13

3 levels of organization of the somatosensory system

Back 13

1,2,3, order neruron.

Front 14

receptor specific

Back 14

each receptor cell monitors a specific receptive field

Front 15

receptive field

Back 15

area of nerve that is able to receive a signal

Front 16

transduction

Back 16

translates a stimulus into an action potential

Front 17

tonic vs. phasic

Back 17

tonic is always on
phasic usually off

Front 18

adaptation

Back 18

when exposed to a certain stimuli for extended time the signal decrease.

Front 19

endoneurium

Back 19

around individual nerve fibers

Front 20

perineurium

Back 20

around bundles

Front 21

epineurium

Back 21

outermost around whole nerve

Front 22

spinal nerves are numbered

Back 22

according to corresponding vertebrea

Front 23

ventral root

Back 23

motor neurons`

Front 24

dorsal root

Back 24

sensory neurons

Front 25

what is nerve plexus

Back 25

network of intersecting nerves

Front 26

dermatone

Back 26

region of the skin surface monitored by a single pair of spinal nerves

Front 27

how does innervation of skeletal muscle differ from innervation of visceral muscles and glands.

Back 27

keletal muscles have definite neuromuscular junctions and synapses, but with visceral organs the nerves end in an array over the surface and just kinda spray the neurotransmitter over the surface of the organ.

Front 28

what is a reflex arc

Back 28

the wiring of a single reflex

Front 29

transduction

Back 29

translates a stimulus into an action potential

Front 30

tonic vs. phasic

Back 30

tonic is always on
phasic usually off

Front 31

adaptation

Back 31

when exposed to a certain stimuli for extended time the signal decrease.

Front 32

endoneurium

Back 32

around individual nerve fibers

Front 33

perineurium

Back 33

around bundles

Front 34

epineurium

Back 34

outermost around whole nerve

Front 35

how is a nerve made up of efferent and afferent nerve fibers

Back 35

Nerve cells have nerve fibers, axons and dendrites. Nerves that we can see and dissect have many nerve fibers, both efferent and afferent.

Front 36

ganglia

Back 36

collection of neuron cell bodies outside CNS

Front 37

spinal nerves are numbered

Back 37

according to corresponding vertebrea

Front 38

ventral root

Back 38

motor neurons`

Front 39

dorsal root

Back 39

sensory neurons

Front 40

what is nerve plexus

Back 40

network of intersecting nerves

Front 41

dermatone

Back 41

region of the skin surface monitored by a single pair of spinal nerves

Front 42

how does innervation of skeletal muscle differ from innervation of visceral muscles and glands.

Back 42

keletal muscles have definite neuromuscular junctions and synapses, but with visceral organs the nerves end in an array over the surface and just kinda spray the neurotransmitter over the surface of the organ.

Front 43

what is a reflex arc

Back 43

the wiring of a single reflex

Front 44

components of the reflex arc

Back 44

arrival of stimulus and activation of receptor-activation on sensory neuron-info processing in the CNS-activation of a motor neuron-response by effector

Front 45

somatic reflex

Back 45

controls skeletal muscles contraction includes superficial stretch reflexes

Front 46

Visceral reflex

Back 46

(automatic) reflexes control action of smooth and cardiac muscles, glands

Front 47

reciprocal inhibition

Back 47

if you tense an extensor the flexor on the opposite side relaxes to help balance like when you walk you tense the extensor on R leg and at the same time you relax the flexor on your L leg

Front 48

flexor reflex

Back 48

is a withdrawl reflex associated with muscles of the limb

Front 49

crossed extensor reflex

Back 49

motor response occur on the opposite side of the stimuli

Front 50

ipsilateral vs contralateral

Back 50

ipsilateral-when sensory and motor neurons enter and exit same side of spinal cord
contraleral when sensory enter one side of cord and motor leaves the other side of the spinal cord

Front 51

babinski sign

Back 51

neurological exam based on what your big toe does when the sole of the foot is stimulated