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Cards In This Set
| Front | Back |
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Afferent
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Sensory
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Efferent
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Motor
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Ascending
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Sensory
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Descending
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Motor
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If name begins with spino-
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The tract must start in the spinal cord and end in the brain - sensory
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If the name ends in -spino
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The tract must start in the brain and end in the spinal cord - motor
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Decussation
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Crossing over
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Sensory tracts: neurons are segregated by
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1. sensory modality arrangement - type of sensory info (pain, touch, etc)
2. somatotopic arrangement - site of origin within body 3. medial-lateral rule - more inferior, the more medial |
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Sensory: posterior column
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-fine touch, vibration, pressure, and proprioception sensations
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Sensory: spinothalamic tract
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-pain, temp, and crude sensations of touch and pressure
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Sesnory: spinocerebellar
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-proproceptive info concerning the postion of muscles, tendons, and joints
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Motor: corticospinal tracts
4 |
-conscious volunatry control over skeletal muscles
-3 pairs: 1. corticobulbar tracts 2. anterior corticospinal 3. lateral corticospinal |
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Motor: subconscious pathways
4 |
1. vestibulospinal
2. tectospinal 3. reticulospinal 4. rubrospinal |
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Motor: vestibulospinal tracts
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-maintain posture and balance
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Motor: tectospinal tracts
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-reflexive changes in postion of head, neck, and upper limbs
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