Motor and sensory tracts

Question 1

fasciculus cuneatus (dorsal column)

Answer 1

• sensory tract for trunk, neck and UE proprioception, vibration, 2pt discrimination and graphesthesia

Question 2

Fasciculus Gracilis (Dorsal column)

Answer 2

• sensory tract for trunk and LE proprioception, vibration, 2pt discrimination and graphethesia

Question 3

Spinocerebellar tract

Answer 3

• Dorsal: sensory tract that ascends to the cerebellum for ipsi subconscious proprioception, tension in muscle, joint sense and posture of the trunk and LE
• Ventral: sensory tract that ascends to the cerebellum, some fibers crossing with subsequent recrossing at the level of the pons for ipsi subconcious proprioception, tension in the muscle, joint sense, and posture of the trunk, UE and LE

Question 4

spino-olivary tract

Answer 4

• ascends to the cerebellum an relays info from cutaneous and proprioceptive organs

Question 5

spinoreticular tract

Answer 5

• the afferent pathway for the reticular formation that influences LOC

Question 6

spinotectal tract

Answer 6

• sensory tract providing afferent information for spinovisual reflexes and assists with movement of eyes and head towards a stimulus

Question 7

SPinothalamic tract

Answer 7

• anterior: sensory tract for light touch and pressure

- lateral: sensory tract for pain and temp sensation

Question 8

corticospinal tract

Answer 8

• anterior: pyramidal motor tract responsible for ipsi voluntary, discrete and skilled movements
• Lateral: pyramidal motor tract responsible for contralateral voluntary fine movement

Question 9

reticulospinal tract

Answer 9

• extrapyramidal motor tract responsible for facilitation or inhibition of voluntary and reflex activity through the influence on alpha and gamma motor neurons

Question 10

rubrospinal tract

Answer 10

• extrapyramidal motor tract responsible for motor input of gross postural tone, facilitating activity of flexor muscles, and inhibiting the activity of extensor muscles

Question 11

tectospinal tract

Answer 11

• extrapyramidal motor tract responsible for contralateral postural muscle tone associated with auditory/ visual stimuli

Question 12

vestibulospinal tract

Answer 12

• extra pyramidal motor tract responsible for ipsi gross postural adjustments subsequent to head movements, facilitating activity of the extensor muscles, and inhibiting activity of the flexor muscles