Anatint And Physiology

Front 1

spinal cord

Back 1

continuation of the brain stem

Front 2

white matter

Back 2

composed of primarily myelinated axons

Front 3

lumbar puncture

Back 3

procedure of sticking a hollow needle into the subarachnoid space between l3 and l4 above the leverl of the top of the hip bone.

Front 4

gray matter

Back 4

location in the center of the spinal cord, shaped like a butterfly, compsed of cell bodies and internuerons

Front 5

central canal

Back 5

opening, or hole, that extends the entire length of the spinal cord located in the middle of the gray matter

Front 6

nerve tracts

Back 6

the neuronal axons grouped together

Front 7

acending tracts

Back 7

sensory tracts that carry info from the perifhery to the spinal cord toward the brain

Front 8

descending tracts

Back 8

motor tracts carrying info from the brain down the spinal cord and toward the peripheral

Front 9

2 major descending tracts

Back 9

pyramidal and extrapyramidal tracts

Front 10

pyramidal tract

Back 10

aka corticospinal tract major motor tract originates in frontal lobe of cerebrum carried from the cortical region of the brain toward the spinal cord

Front 11

spinal nerves

Back 11

atatched at spinal cord by two roots dorsal and ventral root

Front 12

two roots attatched at spinal cord

Back 12

dorsal and ventral

Front 13

sensory nerve

Back 13

collection of sensory nuerons that carry info toward the cns

Front 14

dorsal root

Back 14

sensory nerve of a spinal nerve as it attatches to the spinal cord

Front 15

dorsal root ganglia

Back 15

cell bodies of the sensory fibers are gathered together

Front 16

ventral root

Back 16

composed of motor fibers distributed to muscles and glands

Front 17

mixed nerves

Back 17

spinal nerves containing both sensory and motor fibers

Front 18

reflex

Back 18

an involuntary response to a stimulus

Front 19

patellar

Back 19

aja knee-jerk reflex, tapping the tendon bellow knee cap

Front 20

reflex arc

Back 20

nerve pathway involved in a relex 4 components of arc: receptor, afferent neuron, efferent nueron, effector organ

Front 21

receptor

Back 21

sensory receptors on the thigh

Front 22

4 component of an arc

Back 22

receptor, afferent nueron, efferent nueron, effector organ

Front 23

afferent nueron

Back 23

sensory nueron

Front 24

efferent nueron

Back 24

motor nueron

Front 25

effector organ

Back 25

muscle of the thigh, specifically the quadraceps femoris

Front 26

pupillary reflex

Back 26

regulates the amount of light that enters the eye

Front 27

baroreceptor reflex

Back 27

causes the heart and blood vessels to respond in a way that restores blood pressure to normal

Front 28

Babin skin relex

Back 28

stroking the lateral sole of the foot in the direction of heel to toe with a hard blunt object

Front 29

cranial nerves

Back 29

has a specific number always designated by roman numberl and name. order is the nerves that exit from front to back

Front 30

12 cranial nerves

Back 30

olfactor; optic; oculomotor; toclear; trigeminal nerve; aducens; facial; vestibulocochlear; glossoparyngea; vagus; accessory; hypoglossa;

Front 31

ventral root

Back 31

composed of motor fibers distributed to muscles and glands

Front 32

mixed nerves

Back 32

spinal nerves containing both sensory and motor fibers

Front 33

reflex

Back 33

an involuntary response to a stimulus

Front 34

patellar

Back 34

aja knee-jerk reflex, tapping the tendon bellow knee cap

Front 35

reflex arc

Back 35

nerve pathway involved in a relex 4 components of arc: receptor, afferent neuron, efferent nueron, effector organ

Front 36

receptor

Back 36

sensory receptors on the thigh

Front 37

4 component of an arc

Back 37

receptor, afferent nueron, efferent nueron, effector organ

Front 38

afferent nueron

Back 38

sensory nueron

Front 39

efferent nueron

Back 39

motor nueron

Front 40

effector organ

Back 40

muscle of the thigh, specifically the quadraceps femoris

Front 41

pupillary reflex

Back 41

regulates the amount of light that enters the eye

Front 42

baroreceptor reflex

Back 42

causes the heart and blood vessels to respond in a way that restores blood pressure to normal

Front 43

Babin skin relex

Back 43

stroking the lateral sole of the foot in the direction of heel to toe with a hard blunt object

Front 44

cranial nerves

Back 44

has a specific number always designated by roman numberl and name. order is the nerves that exit from front to back

Front 45

12 cranial nerves

Back 45

olfactor; optic; oculomotor; toclear; trigeminal nerve; aducens; facial; vestibulocochlear; glossoparyngea; vagus; accessory; hypoglossa;

Front 46

spinal cord

Back 46

continuation of the brain stem

Front 47

white matter

Back 47

composed of primarily myelinated axons

Front 48

lumbar puncture

Back 48

procedure of sticking a hollow needle into the subarachnoid space between l3 and l4 above the leverl of the top of the hip bone.

Front 49

gray matter

Back 49

location in the center of the spinal cord, shaped like a butterfly, compsed of cell bodies and internuerons

Front 50

central canal

Back 50

opening, or hole, that extends the entire length of the spinal cord located in the middle of the gray matter

Front 51

nerve tracts

Back 51

the neuronal axons grouped together

Front 52

acending tracts

Back 52

sensory tracts that carry info from the perifhery to the spinal cord toward the brain

Front 53

descending tracts

Back 53

motor tracts carrying info from the brain down the spinal cord and toward the peripheral

Front 54

2 major descending tracts

Back 54

pyramidal and extrapyramidal tracts

Front 55

pyramidal tract

Back 55

aka corticospinal tract major motor tract originates in frontal lobe of cerebrum carried from the cortical region of the brain toward the spinal cord

Front 56

spinal nerves

Back 56

atatched at spinal cord by two roots dorsal and ventral root

Front 57

two roots attatched at spinal cord

Back 57

dorsal and ventral

Front 58

sensory nerve

Back 58

collection of sensory nuerons that carry info toward the cns

Front 59

dorsal root

Back 59

sensory nerve of a spinal nerve as it attatches to the spinal cord

Front 60

dorsal root ganglia

Back 60

cell bodies of the sensory fibers are gathered together

Front 61

how many spinal nerves
how many cranial nerves

Back 61

spinal 31
cranial 12

Front 62

list the cranial nerves

Back 62

cervical c1-8; thoracuc t1-12; lumbar L1-L5; sacral s1-5; coccygeal co1

Front 63

cauda equina

Back 63

A bundle of spinal nerve roots that arise from the bottom end of the spinal cord. The cauda equina comprises the roots of all the spinal nerve roots below the level of the first lumbar (L1) vertebra, namely the sacral and coccygeal nerves. So named because it resembles the tail

Front 64

nerve plexuses

Back 64

various points, nerve fibers converge or come together 3 major plexuses brachial lumbosacral cervical

Front 65

cervical plexuses

Back 65

c1-c4 skin muscles of the neck and shoulder; diaphram

Front 66

brachial plexuses

Back 66

c5-c8 and t1 skin and muscles of the upper extrmities

Front 67

lumbosacral plexuses

Back 67

512, L1-5 and s1-4 skin and muscle of lower torso and lower extrmities

Front 68

dermatome

Back 68

spinal nerve innervates a particular are of the skin, this distribution of nerves is dermatome

Front 69

functional classification of the pns

Back 69

bring sensory and motor info from different parts of the body autonomic nervous system composed of nerves that supply the organs and glands