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NBCE Part 1
Function of descending tracts
7
Health Care
Professional
07/05/2012

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Cards

Term
Voluntary control of muscles in the limbs, fine motor function
Definition
Lateral Corticospinal
Term
Voluntary control of muscles in the head, neck, & Trunk, gross and posture motor control
Definition
Ventral (Anterior) corticospinal
Term
Excites proximal flexors & inhibits extensors mainly in the upper limbs
Definition
Rubrospinal
Term
Restricts voluntary movements through the gamma motor neurons influences alpha and gamma motor neurons in spinal reflexes
Definition
Reticulospinal
Term
Head and eye turning in response to light and sound (spinovisual reflex)
Definition
Tectospinal
Term
Postural reflexes- neck muscles extensors of back and limbs, inhibits flexors to maintain balance (antigravity muscles)
Definition
Vestibulospinal
Term
Inhibit nociception by releasing serotonin and acts on the C fibers
Definition
Raphespinal
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