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32 Cards in this Set
- Front
- Back
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Temporalis
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Flat, fan-shaped muscle over temporal lobe....Closes jaw (Muscle of Mastication)
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Masseter
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Covers lateral aspect of jaw...Closes Jaw (Muscle of Mastication)
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Muscle contraction fulfills 4 important functions in the body
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Movement, Posture, Joint stability, Heat Production
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ATP
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Adenosine triphosphate. Required for muscle contraction.
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Tetany
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When a 2nd stimuls is applied during the relaxation phase, & the 2nd twich is stronger than the 1st.
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Abduction
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Means to take away. moves a bone or limb away from the midline. EX: Jumping Jacks, or spreading fingers apart
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Rotation
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the movement of a bone around its own axis. EX: shaking your head no
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Adduction
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Means to bring together. EX: bringing the arms back to the sides of the body after they have been abuducted
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Circumduction
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Conelike, circluar movement of a body segment. EX: The movement of a arm @ the shoulder point.
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Botulism
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Severe form of food posioning caused by a neurotoxin. The toxin inhibits transmission of nerve impulses @ neuromuscular junctions.
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Disuse atrophy
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Skeletal muscle deterioration w/ reduction in size & muscular weakness due to bed rest, immobility, or nerve damage.
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Muscular Dystrophy
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Inherited, chronic, progressive wasting & weaking of muscles without involvement of the nervous system
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Muscular Tears
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Severe muscle strain in which there is tearing of the fascia & bleeding; may require surgery & or immobility to promote healing.
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Myasthenia gravis
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Autoimmune disease, more common in females, that is characterized by weakness of skeletal muscles caused by an abnormality @ the neuromusclar junction.
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Myositis Polio
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Inflammation of muscle tissue
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Spinal Cord Injuries
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Depending on severity, trauma to the spinal cord results in temporary or permanent disruption of cord-mediated functions, including motor impulses to skeletal muscles with subsequent loss of motor function; extent of muscle paralysis depends on locaton & severity of trauma
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Visual Association area
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Compares present visual information with previous expierence as a basis for recognition. Attaches significance to what you see.
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Auditory association area
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Permits recognition of sounds. (speech, music, noise)
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Olfactory Cortex
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Permits perception of different colors
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Gustatory cortex
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Permits perception of different tastes
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Wernickes area
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Permits comprehension of spoken & written language
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Layers of Meninges
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Dura Mater (outer), Arachnoid (middle), Pia Mater (inner)
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Neuroglia
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Supporting cells of nervous tissue; cells in nervous tissue that do not conduct impulses. "Nerve glue"
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Frontal Lobe
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Functions include speech and motor area that controls voluntary movement on the contralateral side of the body
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Occipital Lobe
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Functions include vision
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Parietal Lobe
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controls sensation of touch and taste
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Temporal Lobe
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contains the auditory and olfactory areas
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Ganglia
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Organ of PNS. Ganglia are collections of nerve
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Functions of the nervous systems
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Sensory functions, integrative functions, motor functions
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Branches of PNS
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Somatic and autonomic
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Sympathetic
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fight or flight
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Parasympathetic
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restores homostasis
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