Cs Spinal Cord, Spinal Nerves, And Spinal Reflexes Schmidt Chptr 13

Front 1

GROSS ANATOMY

Back 1

-SPINAL CORD AVERAGES ABOUT 18 INCHES LONG
-TYPACALLY ENDS AT THE L1-L2 JUNCTURE

Front 2

SPINAL SEGMENTS ARE ASSOCIATED WITH THESE(2)

Back 2

-PAIR OF DORSAL ROOT GANGLIA
-PAIR OF VENTRAL ROOT GANGLIA

Front 3

DORSAL ROOT GANGLIA

Back 3

RESPONSIBLE FOR SENSORY INFORMATION OR *AFFERENT*
-BACK OF SPINAL SEGMENT

Front 4

VENTRAL ROOT GANGLIA

Back 4

RESPONSIBLE FOR MOTOR FUNCTION OR *EFFERENT*
-FRONT OF SPINAL SEGMENT

Front 5

SPINAL MENINGES(3)

Back 5

-DURA MATER
-ARACHNOID MATER
-PIA MATER

Front 6

DURA MATER

Back 6

OR PACHYMNINX
IS THE TOUGH AND INFLEXIBLE OUTERMOST OF THE THREE LAYERS OF THE MENINGES SURROUNDING THE BRAIN AND SPINAL CORD, EXTENDING PAST THE SPINAL CORD TO ABOUT THE SECOND VERTABRA.

Front 7

ARACHNOID MATER

Back 7

A DELICATE, SPIDERLIKE LAYER OF TISSUE THAT IS BETWEEN THE DURA AND PIA LAYERS AND CREATES A SUBARACHNOID SPACE.
-COMMON SITE FOR SPINAL PUNCTURES.

Front 8

PIA MATER

Back 8

A THIN, MESH LIKE LAYER OF MATERR THAT COSELY ENVELOPES THE ENTIRE SURFACE OF THE BRAIN AND SPINAL CORD

Front 9

MATTER(2)

Back 9

WHITE MATTER
GREY MATTER

Front 10

WHITE MATTER

Back 10

CONTAINS LARGE NUMBERS OF MYELINATED AND UNMYELINATED AXONS.
CONDUCTS

Front 11

GREY MATTER

Back 11

IS DOMINATED BY CELL BODIES OF NEURONS, NUERGLIA AND UNMYELINATED AXONS

Front 12

PLEXUSES(3)

Back 12

CERVICAL
BRACHIAL
LUMBAR AND SACRAL
(NERVES COME TOGETHER)

Front 13

REFLEXES

Back 13

ARE RAPID AUTOMATIC RESPONSES TO SPECIFIC STIMULI.

Front 14

REFLEX CLASSIFICATIONS(8)

Back 14

-INNATE
-ACQUIRED
-SOMATIC
-VISCERAL
-MONOSYNAPTIC
-POLYSYNAPTIC
-SPINAL
-CRANIAL

Front 15

SPINAL REFLEX (2)

Back 15

MONOSYNAPTIC REFLEX
--DOES NOT GO TO BRAIN--
EX. ANKLE ROLL STRETCH REFLEX MUSCLE SPINDLE ACTIVATED CAUSING CONTRACTION OF MUSCLE.
-POLYSYNAPTIC REFLEXES
EX. RICIPROCAL INHIBITION
WE PURPOSELY CONTRACT A MUSCLE AND THE BODY RELAXES ANOTHER SO WE CAN.