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Page 1: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 2: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

PERIPHERAL NERVOUS SYSTEM

Dr Iram Tassaduq

Page 3: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

COMPONENTS OF PERIPHERAL NERVOUS

SYSTEM

Cranial nerves

Spinal nerves

Page 4: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

CRANIAL NERVES

12 pair of nerves that arise from brain & exit through foramina leading to muscles, glands & sense organs in head & neck

Page 5: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

THE SPINAL NERVES

31 pairs of spinal nerves (1st cervical above C1)mixed nerves exiting at intervertebral foramen

Page 6: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 7: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 8: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 9: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 10: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 11: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 12: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

EXTENT OF SPINAL CORD

Page 13: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

EXTENT OF SPINAL CORD Spinal cord grows

slowly as compared to vertebral column.

It ends at lower border of L1

Length of nerve roots increase progressively

Page 14: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

CAUDA EQUINA Roots of lumbar

and sacral nerves below the level of termination of cord form a vertical bundle of nerves that resemble a horse tail

Page 15: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 16: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 17: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

DERMATOME

Page 18: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 19: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 20: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

NERVE PLEXUSES Ventral rami branch & anastomose repeatedly to

form 5 nerve plexuses cervical in the neck, C1 to C5

supplies neck and phrenic nerve to the diaphragm brachial in the armpit, C5 to T1

supplies upper limb and some of shoulder & neck lumbar in the low back, L1 to L4

supplies abdominal wall, anterior thigh & genitalia sacral in the pelvis, L4, L5 & S1 to S4

supplies remainder of butt & lower limb coccygeal, S4, S5 and C0

Page 21: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves
Page 22: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

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Page 23: P ERIPHERAL NERVOUS SYSTEM Dr Iram Tassaduq COMPONENTS OF PERIPHERAL NERVOUS SYSTEM Cranial nerves Spinal nerves

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