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14 Cards in this Set
- Front
- Back
Primary Motor Cortex
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Location: Frontal lobe, just anterior of central sulcus
Function: initiation/coordination of fine motor skills, postural coordination, contains motor neurons that send axons to skeletal muscles |
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Occipital Lobe
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Location: Most posterior lobe of the cortex
Function: areas important for visual perception |
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Spinal Cord
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Location: Along spine, extends from medulla oblongata
Function: neural system vitally involved in motor control |
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Primary Somatic Sensory Cortex
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Location: just posterior to central sulcus
Function: receives axons specific to type of sensory information |
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Premotor Area
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Location: anterior to primary motor cortex
Function: organize movements before they're initiated, rhythmic coordination during movement, control of movement based on observation of another person performing a skill |
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Temporal Lobe
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Location: just below lateral fissure
Function: memory, abstract thought, judgement & auditory perception |
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Cerebellum
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Location: behind cerebrum and attached to brainstem
Function: smooth/accurate movement, eye-hand coordination, movement timing, posture, movement error detection/correction, learning motor skills |
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Basal Ganglia
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Location: buried within cerebral hemispheres
Function: planning and movement, antagonist muscles during movement, force |
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Thalamus
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Location: in diencephalon
Function: relay station, control of attention, mood, and perception of pain |
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Muscle Spindle
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Location: in most skeletal muscles in a capsule of specialized muscle fibers and sensory neurons
-parallel with EXTRAFUSAL muscle fibers -wrap around INTRAFUSAL muscle fibers Function: feedback to CNS to maintain intended limb movement position, direction, and velocity |
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Golgi Tendon Organ (GTO)
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Location: in skeletal muscle near insertion of tendon
Function: detect changes in muscle tension (force) |
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Mechanoreceptors
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AKA Joint receptors
Location: Muscle spindles Function: detect changes in muscle fiber length and velocity, enables detection of changes in joint angle |
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Motor Unit
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Alpha motor neuron and all the skeletal muscle fibers it innervates
Function: activates (fires) all connected muscle fibers |
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Cerebrum
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Location: one of two components of forebrain--two halves connected by corpus callosum
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