APC 100 Neuro Powerpoint 2011 part 1

APC 100 Neuro Powerpoint 2011 part 1 - Nervous System...

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Nervous System Nervous System Anatomy and Functional Organization Anatomy and Functional Organization Jim Sharp DVM, PhD Jim Sharp DVM, PhD [email protected] APC Anatomy 100 APC Anatomy 100
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Anatomical and Functional Organization of the Nervous System ± Central Nervous System Central Nervous System ± Brain ± Spinal Cord ± Peripheral Nervous System Peripheral Nervous System ± Cranial Nerves ± Origniate from brain ± Peripheral Nerves ± Originate from spinal cord
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Spinal Nerves Spinal nerves go to periphery Muscles Skin Glands Heat,cold, pressure, vibration, stretch Motor to skeletal muscle Motor to glands in skin Nerves are wrapped with connective tissue Epineurium wraps whole nerve Perineurium wraps fasicles Endonerium wraps individual nerve fibers
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Anatomy of Spinal Nerves Spinal nerve – two roots Dorsal –sensory Ventral root –motor Cell bodies-location Doral root ganglion sensory Ventral grey horn motor neurons Spinal nerve is formed as dorsal and ventral roots merge Spinal nerves split into dorsal,ventral, and sometimes intermediate branches Spinal segment- length of spinal cord that supplies one spinal nerve
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Vertebral Column, Spinal Cord, and Spinal Nerves Human Vertebrae – 7 cervical,12 thoracic,5 lumbar,5 sacral,4 caudal – Spinal nerves exit via intervertebral foramina (foramen) • These are spaces between vertebral bodies The spinal cord in most species tends to be shorter than the vertebral column The more caudal spinal nerves must be longer to exit via the appropriate intervertebral foramen
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Vertebral Column, Spinal Cord, and Spinal Nerves
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This note was uploaded on 04/05/2011 for the course APC 100 taught by Professor Kelliewhited during the Spring '07 term at UC Davis.

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APC 100 Neuro Powerpoint 2011 part 1 - Nervous System...

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