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SPINAL CORD

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spinal cord & spinal nerves martini, anatomy & physiology, 7th edition, chapter # 13 lab manual, chapter #7 – PowerPoint PPT presentation

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Title: SPINAL CORD


1
SPINAL CORD SPINAL NERVES
  • MARTINI, ANATOMY PHYSIOLOGY, 7TH EDITION,
    CHAPTER 13
  • LAB MANUAL, CHAPTER 7

2
PRESENTATION CREATED BY ALFONSO A. PINO.
MD.COLLABORATORPROFESSOR NIDIA ROMER.
3
NOTE
  • THIS IS A STUDY GUIDE, NOT AN ALL INCLUSIVE
    REVIEW.
  • THERE MIGHT BE THINGS NOT COVERED BY THIS STUDY
    GUIDE THAT MIGHT BE ASKED IN YOUR PRACTICUMS /
  • QUIZZES.
  • STUDENTS ARE RESPONSIBLE FOR READING THEIR
    TEXBOOK (S) AND FOR ALL THE MATERIAL COVERED
    DURING THE LABORATORY PERIOD, AS PER THE COURSE
    SYLLABUS

4
SPINAL MENINGES
  • SURROUDS THE SPINAL CORD FOR PHYSICAL STABILITY

  • SHOCK ABSORPTION
  • WALL OF VERTEBRAL CANAL (NO PART OF MENINGES)
  • EPIDURAL SPACE- CONTAINS FAT AND BLOOD VESSELS

  • IMP FOR ANESTESIC INJECTION
  • DURA MATER- OUTERMOST COVERING OF SPINAL CORD
  • SUBDURAL SPACE
  • ARACNOID MATER
  • SUBARACNOID SPACE- FILLED WITH CSF
  • CSF- SHOCK ABSORBER
  • DIFFUSIUM MEDIUM FOR WASTES,
    GASES,
  • NUTRIENTS CHEMICALS
  • PIA MATER -PIADELICATE, MATERMOTHER FOR

  • NOURISHEMENT

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7
SPINAL CORD
  • DENDICULAR LIGAMENTS- PREVENT LATERAL

  • MOVEMENT OF THE SPINAL CORD
  • CONUS MEDULARIS-
  • END PART OF THE SPINAL CORD, LIKE A CONUS
  • CAUDA EQUINA- NERVE FIBERS EXTENDING AFTER
  • CONUS MEDULARIS, LIKE
    A HORSE TAIL
  • FILUM TERMINALE- TO ANCHOR SPINAL CORD
    VERTICALLY BY CONNECTING IT WITH COCCYX
  • F- TO PREVENT UP DOWN MOVEMENT
  • GRAY MATTER- IT HAS NUCLEI
  • POSTERIOR (DORSAL) HORNS SOMATIC
    VISCERAL

  • SENSORY NUCLEI
  • ANTERIOR (VENTRAL) HORNS-SOMATIC MOTOR

  • NUCLEI
  • LATERAL HORNS- AUTONOMIC (VISCERAL) NUCLEI

8
  • GREY COMMISSURE- TO CONNECT TWO SIDES OF THE

  • GREY MATTER
  • CENTRAL CANAL (THE HOLE IN THE MIDDLE)-
  • CONTEINS
    CSF(CEPHALO SPINAL FLUID)
  • WHITE MATTER- IT HAS TRACS OR FASCICULUS
  • POSTERIOR (DORSAL) WHITE COLUMN
    (FUNICULUS)

  • CARRY SENSORY INFO
  • LATERAL WHITE COLUMN (FUNICULUS)-

  • CARRY SENSORY MOTOR INFO
  • ANTERIOR (VENTRAL) WHITE COLUMN
    (FUNICULUS)

  • CARRY SENSORY MOTOR INFO
  • ANTERIOR MEDIAN FISSURE- DEEP GROOVE
  • POSTERIOR MEDIAN SULCUS- SHALLOW GROOVE

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13
SPINAL NERVES
  • POSTERIOR ROOT- CARRY SENSORY INFO
  • POSTERIOR ROOT GANGLIA- CONTEINS SENSORY NEURONS

  • ANTERIOR ROOT- CARRIES MOTOR INFO
  • POSTERIOR RAMUS (SMALLER)- CARRIES SENSORY
    MOTOR INFO


  • ANTERIOR RAMUS- (THICKER)- CARRIES SENSORY
    MOTOR INFO

14
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15
PLEXUSES
  • CERVICAL
  • BRACHIAL
  • LUMBAR
  • SACRAL

16
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17
CERVICAL PLEXUS
  • SERVES OR INNERVATES NECK SHOULDER
  • PHRENIC NERVE- IT EXTENDS BELOW THE
  • SHOULDER TO THE
    DIAPHRAGM.
  • IT CAUSES THE DIAPHRAGM TO CONTRACT

  • IMP- FOR BREATHING

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19
  • BRACHIAL PLEXUS- SERVES OR INNERVATES UPPER LIMB

  • SHOULDER
  • AXILLARY N- SERVES DELTOID TERES
    MINOR
  • AND
    SKIN OF THE SHOULDER

  • (FROM ANTERIOR TO POSTERIOR)-
  • RADIAL NERVE- SERVES POSTERIOR
    UPPER LIMB
  • MUSCULOCUTANEOUS N-SERVES ANTERIOR
    ARM,

  • BICEPS BRACHII BRACHIALIS
  • MEDIAN N- SERVES ANTERIOR FOREARM
  • ULNAR N- SERVES ANTERIOR HAND

20
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22
LUMBAR PLEXUS
  • IT SERVES OR INNERVATES SKIN SOME MUSCLES OF
    ANTERIOR ABDOMEN, BUTTOCKS, GENITALIA, ANTERIOR
    LATERAL POSTEROMEDIAL THIGH MEDIAL SURFACE OF
    LEG AND FOOT
  • FEMORAL NERVE ANTERIOR MUSCLES OF THE
    THIGH, FLEXORS ADDUCTORS OF THE HIP, SKIN OF
    THE THIGH(ANTERO MEDIAL SURFACE) SKIN OVER THE
    MEDIAL SURFACE OF LEG AND FOOT
  • RECTUS FEMORIS
  • VASTUS MEDIALIS
  • VASTUS LATERALIS
  • VASTUS
    INTERMEDIUS

23
LUMBAR PLEXUS SACRAL PLEXUS
24
SACRAL PLEXUS
  • IT SERVES OR INNERVATES BUTTOCK (GLUTEUS)
  • POSTERIOR LOWER LIMB, ANTERIOR LEG
    FOOT
  • LATERAL LEG, SOME MUSCLES OF GENITALIA
  • INCLUDING EXTERNAL ANAL AND URETHRAL

  • SPHINCTERS
  • SCIATIC N (THIKER)- SERVES POSTERIOR THIGH
  • COMMON PERONEAL N (GOES ANTERIORLY)- SERVES

    ANTERIOR LEG FOOT
  • TIBIAL N (GOES POSTERIORLY)- SERVES POSTERIOR
    LEG

    FOOT

25
LUMBAR PLEXUS SACRAL PLEXUS
26
REMEMBER!GO TO THE TUTORING ROOMAND PRACTICE
WITH MODELS.ROOM 3326.
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