Tracts Flashcards
DORSAL COLUMN MEDIAL LEMINISCUS PATHWAY
where do they decussate
medulla
SPINOTHALAMIC TRACT aka ANTEROLATERAL SYSTEM
WHAT INFO DOES IT CARRY TO brain
Lateral tract
pain and temp
SPINOTHALAMIC TRACT aka ANTEROLATERAL SYSTEM
WHAT INFO DOES IT CARRY TO brain
anterior tract
crude touch and firm pressure
CORTICOSPINAL TRACT
WHAT INFO DOES IT SEND TO THE BRAIN?
Lateral corticospinal tract:
distal muscles (ie arms and legs) eg fine motor control of fingers and hands
CORTICOSPINAL TRACT
WHAT INFO DOES IT SEND TO THE BRAIN?
Anterior aka medial aka ventral corticospinal tract:
axial muscles (ie trunk) and proximal parts of arms and legs
Lateral corticospinal tract:
WHERE DOES IT DECUSSATE:
medullary pyramids
Anterior corticospinal tract:
WHERE DOES IT DECUSSATE:
at the level of spinal cord where it synpases with lower motor neuron via the anterior white commissure
Lateral corticospinal tract:
WHERE DOES IT TERMINATE?
dorsolateral region of ventral horns
Anterior corticospinal tract:
WHERE DOES IT TERMINATE?
ventral horns
CORTICOBULBAR TRACT
IT SENDS INFO FOR WHAT PARTS OF BODY?
Controls movement of Muscles of head and face (but not eyes
WHERE DOES IT DECUSSATE?
Medulla
TERMINATION?
Nuclei of cranial nerves
bilateral innervation
Anterior spinocerebellar tracts
Posterior spinocerebellar tracts-
- unconscious proprioception from golgi tendon organ of lower limbs. Ipsilateral
- unconscious proprioception from muscle spindle fibres of lower limbs. Ipsilateral
Rostral cuneocerebellar tract
Cuneocerebellar tract
- unconscious proprioception from golgi tendon organ of ipsilateral arm
- unconscious proprioception from muscle spindle fibres of the ipsilateral arm
