Descending Tracts

Question 1

Lateral Corticospinal tract

Answer 1

Pyramidal motor tract responsible for contralateral voluntary fine movements

Question 2

Damage to _______ tracts results in a positive babinski sign, absent superficial abdominal reflexes, and cremasteric reflex, and the loss of fine motor or skilled voluntary movements

Answer 2

Corticospinal (pyramidal ) tracts

Question 3

Reticulospinal tract

Answer 3

Extrapyramidal motor tract responsible facilitation or inhibition of voluntary and reflex activity through the influence of Alpha and gamma motor neuron

Question 4

Rubrospinal tract

Answer 4

Extrapyramidal

Gross postural tone, facilitating activity of flexor muscles, and inhibiting the activity of extensor muscles

Question 5

Tectospinal tract

Answer 5

Extrapyramidal

Contralateral postural muscle tone associated with auditory visual stimuli

Question 6

Vestibulospinal tract

Answer 6

Extrapyramidal

Responsible for ipsilateral postural adjustments subsequent to head movements, facilitating activity of the extensor muscles and inhibiting activity of the flexor muscles

Question 7

Damage to the _______ tracts results in significant Paralysis hypertonicity exaggerated dtrs and clasp-knife reaction

Answer 7

Extrapyramidal

Question 8

Anterior Corticospinal tract

Answer 8

Pyramidal motor tract responsible for ipsilateral voluntary, discrete, and skilled movements