Chapter 5: An-Najah National University Anatomy and Physiology 1

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Chapter 5: An-Najah National University Anatomy and Physiology 1 Faculty of Medicine Department of Physiology Anatomy and Physiology 1 7102101 Instructor: Heba Salah Chapter 5: The Nervous System Part 7: Peripheral Nervous System

Peripheral Nervous System Structure of a Nerve: Endoneurium surrounds each fiber Groups of fibers are bound into fascicles by perineurium Fascicles are bound together by epineurium

Classification of Nerves Mixed nerves – both sensory and motor fibers Afferent (sensory) nerves – carry impulses toward the CNS Efferent (motor) nerves – carry impulses away from the CNS

Spinal Nerves There is a pair of spinal nerves at the level of each vertebrae

Cranial Nerves

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