Ascending tracts

Question 1

tracts that carry unconscious proprioceptive information are collectively known as the …

Answer 1

spinocerebellar tracts

Question 2

….. – Carries proprioceptive information from the lower limbs to the ipsilateral cerebellum.

Answer 2

Posterior spinocerebellar tract

Question 3

….– Carries proprioceptive information from the upper limbs to the ipsilateral cerebellum.

Answer 3

Cuneocerebellar tract

Question 4

… – Carries proprioceptive information from the lower limbs. The fibres decussate twice – and so terminate in the ipsilateral cerebellum.

Answer 4

Anterior spinocerebellar tract

Question 5

… – Carries proprioceptive information from the upper limbs to the ipsilateral cerebellum.

Answer 5

Rostral spinocerebellar tract

Question 6

The dorsal column-medial lemniscus pathway

Answer 6

1st order neuron- carries fine touch, precise pressure, proprioception
Decussate: medulla oblongata–>
2nd order: deccusate to enter the medial lemniscus to the thalamus
3rd: relay information from thalamus to the postcentral gyrus

Question 7

nucleus gracilis

Answer 7

foot, leg, lower trunk

Question 8

nucleus cuneatus

Answer 8

Hand, arm, upper trunk

Question 9

Hands and head are most represented in the SSx

Answer 9

what does it mean

Question 10

Functional properties of the Spinothalamic System

Answer 10

subserves pain and temperature sensibility

Question 11

Painful stimuli are perceived through a multimodal receptor molecule found on pain
fibres known as the ___________

Answer 11

vallinoid receptor (TVRP-1)