Lateral - Spinal Cord * * * * * * * * * * * * * Lateral &...

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Spinal Cord * * are found in cervical cord segments only. * involved in reflex movement of the head, especially in response to visual and auditory stimuli * * control muscles of the upper and lower limbs, especially to maintain posture and balance * contain descending analgesic pathways that reduce pain transmission to brain * Vestibulospinal tract * begins at brainstem carrying impulses from inner ear * tract passes down ventral column * controls limb muscles that maintain balance and posture * Rubrospinal tract * aid in muscle coordination * almost nonexistent in humans and have little functional importance General Anatomy of Nerves * nerve- consist of bundles neuronal axons (nerve fiber) * endoneurium - c.t. surrounding each nerve fiber * perineurium - encases nerve bundles called fascicles , blood vessel penetrate to this level * eipineurium - composes the nerve as a whole * dense irregular c.t. that protects the nerve from stretching and injury
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This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.

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Lateral - Spinal Cord * * * * * * * * * * * * * Lateral &...

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