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SPINAL CORD & SPINAL NERVES

SPINAL CORD & SPINAL NERVES. MARTINI, ANATOMY & PHYSIOLOGY, 7 TH EDITION, CHAPTER # 13 LAB MANUAL, CHAPTER #7. PRESENTATION CREATED BY ALFONSO A. PINO. MD. COLLABORATOR: PROFESSOR NIDIA ROMER. NOTE:. THIS IS A STUDY GUIDE , NOT AN ALL INCLUSIVE REVIEW.

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SPINAL CORD & SPINAL NERVES

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  1. SPINAL CORD & SPINAL NERVES MARTINI, ANATOMY & PHYSIOLOGY, 7TH EDITION, CHAPTER # 13 LAB MANUAL, CHAPTER #7 ALFONSO A. PINO. MD.

  2. PRESENTATION CREATED BY ALFONSO A. PINO. MD.COLLABORATOR:PROFESSOR NIDIA ROMER. ALFONSO A. PINO. MD.

  3. NOTE: • THIS IS A STUDY GUIDE, NOT AN ALL INCLUSIVE REVIEW. • THERE MIGHT BE THINGS NOT COVERED BY THIS STUDY GUIDE THAT MIGHT BEASKED 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 ALFONSO A. PINO. MD.

  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-PIA=DELICATE, MATER=MOTHER FOR • NOURISHEMENT ALFONSO A. PINO. MD.

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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 PREVENTUP & 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 ALFONSO A. PINO. MD.

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  13. SPINAL NERVES • POSTERIOR ROOT- CARRY SENSORY INFO • POSTERIOR ROOT GANGLIA- CONTEINS SENSORYNEURONS • ANTERIOR ROOT- CARRIES MOTOR INFO • POSTERIOR RAMUS (SMALLER)- CARRIES SENSORY & MOTORINFO • ANTERIOR RAMUS- (THICKER)- CARRIES SENSORY & MOTORINFO ALFONSO A. PINO. MD.

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  15. PLEXUSES • CERVICAL • BRACHIAL • LUMBAR • SACRAL ALFONSO A. PINO. MD.

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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 ALFONSO A. PINO. MD.

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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 ALFONSO A. PINO. MD.

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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 ALFONSO A. PINO. MD.

  23. LUMBAR PLEXUS & SACRAL PLEXUS ALFONSO A. PINO. MD.

  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 ALFONSO A. PINO. MD.

  25. LUMBAR PLEXUS & SACRAL PLEXUS ALFONSO A. PINO. MD.

  26. REMEMBER!GO TO THE TUTORING ROOMAND PRACTICE WITH MODELS.ROOM 3326. ALFONSO A. PINO. MD.

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