descending pathways Flashcards
voluntary movement of body (controls limbs and trunk)
corticospinal tract
voluntary movement of face (facial expressions, speech)
corticobulbar tract
fractionated movements; distal limb movements
lateral corticospinal tract
postural, gross, proximal, and axial movements
medial corticospinal tract
coordinates posture and gross movements (body and limb)
reticulospinal tract
maintains balance and posture based on head and body position (general one)
vestibulospinal tract
neck and upper back muscles for head movement
medial vestibulospinal tract
extensor muscles for upright posture
lateral vestibulospinal tract
facilitates upper limb distal muscle activity (fine motor control for upper limbs)
rubrospinal tract
what two tracts are responsible for fractionated movements?
CST and rubrospinal tract
provides tonic facilitation of spinal motor neurons for motor control
ceruleospinal tract
modulates spinal motor neurons, influencing motor and emotional responses
raphesinal tract