Chap 11 The Human Body in Health and Illness 3rd Edition -Evolve
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each of the black spaces below before clicking
on it to display the answer.
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| A continuation of the Brain Stem; Tubelike structure | Spinal Cord
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| A hollow needle is inserted into the subarachnoid space, Between L3 & L4 | Lumbar Puncture
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| Composed primarily of cell bodies and interneurons | Grey Matter
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| An opening, or hole, that extends the entire length of the spinal cord | Central Canal
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| Composed primarily of the myelinted axons | White Matter
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| Neuronal axons that are grouped together | Nerve Tract
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| Carry information from the periphery, up the spinal cord, and toward the brain are called | Sensory Tract/Ascending Tracts
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| It carries sensory information for touch, pressure, and pain from the spinal cord to the thalamus in the brain(controls-temp, pressure, pain, light motor) | Spinothalamic Tract
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| Carries information from the brain, down the spinal cord and toward the periphery | Motor Tracts/Descending
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| Major motor tract; motor information is carried from the cortical region(frontal lobe)of the brain toward the spinal cord(controls-skeletal muscle tone,voluntary muscle movement) | Pyramidal Tract/Corticospinal
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| Functions are Proprioception; deep pressure; vibration | Dorsal Column
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| Most nerve tracts cross over from one side to the other this is called | Decussation
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| Fuctions-Propriception | Spinocerebeller
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| Skeletal muscle activity; Balance and Posture | Extra Pyramidal
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| If the spinal cord is severed at the neck region, the trunk and all four extremities are paralyzed. This condition is called | Quadriplegia
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| Lower spinal cord injury, involving only the lumbar region of the spinal cord , the person has funn use of the upper extremities but is paralyzed from the waist down | Paraplegia
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| Attached to the spinal cord, formed by dorsal and ventral roots | Spinal Nerves
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| Sensory nerve fibers from the periphery travel to the cord through the | Dorsal Root
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| The cell bodies of the sensory nerve fibers are gathered together in the | Dorsal Root Ganglia
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| Composed of motor fibers; Distributed to the muscles and glands | Ventral Root
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| The spinal cord serves three major functions | Sensory Pathway, Motor Pathway and Reflex Center
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| An involuntary response to a stimulas is a | Reflex
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| A nerve pathway involved in a reflex | Reflex Arc
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| Sense of smell | Olfactory I
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| Sense of Sight | Optic II
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| Movement of the eyeball, Rasing eyelid, Change in pupil size | Oculomotor III
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| Chewing food, sense in face, scalp, cornea, and teeth | Trigminal V
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| Movement of the eyeball | Abducens VI
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| Facial expressions, secreation of saliva and tears, taste, blinking, sense of hearing and balance | Facial VII
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| Sense of hearing and balance | Vestibulocochlear VIII
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| Swallowing, secreation of saliva, taste, sensory for the reflex requlation of BP, part of the gag reflex | Glossopharyngeal IX
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| Visceral muscle movement and sensations, especially movement and secreation of the digestive system, sensory for reflex regulation of BP | Vagus X
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| Movement of eyeball | Trochlear IV
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| Swallowing, Head and sholder movement, Speaking | Accessory XII
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| Speech and Swallowing | Hypoglossal XII
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| Nerve fibers converging or coming together | Plexuses
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| Supplies the muscles and skin of the neck | Cervical Plexus (C1-C4)
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| Stimulates the contration of the diaphram | Pherenic Nerve
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| Supply the muscles and skin if the shoulder, arm, forearm, wrist and hand | Brachial Plexus (C5-C8, T1)
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| Gives rise to nerves that supply the muscles and skin if the lower abdominal wall external genitalia, buttocks, and lower extremities | Lumbosacral Plexus (T12, L1-L5,S1-S4)
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| A spinal nerve that innervates a paticular area of the skin; this distrubution of nerves is called | Dermatome
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