Neuro 3 and 4

Question 1

Dorsal Column

Answer 1

GSA - fine touch and discriminative touch. Information from receptors of the skin

Question 2

Spinotectal Pathway

Answer 2

Coordinates movement of eyes and hands

Pathway = reflective turning of head and eyes towards a point of cutaneous stimulation (bug lands on arm)

Question 3

Spinothalamic Tract

Answer 3

Pain and temperature sensation from the body except the head

Question 4

Spino-olivary Pathway

Answer 4

Role in control of movements of the body and limbs

Question 5

Spinoreticular Pathway

Answer 5

Levels of consciousness

Question 6

Spinomesencephalic Tract

Answer 6

Similar path to the spinoreticular tract, except that it terminates in the midbrain’s periaqueductal gray matter (PAG)

This region then has connections to the limbic system, so this tract is likely responsible for the fear and aversion of reactions associated with pain.

This pathway is responsible for fear response - beating of the heart, fight or flight response

Question 7

Spinocerebellar Tract

Answer 7

proprioception - the body’s ability to observe position in space

Question 8

Rubrospinal tract

Answer 8

muscle tone, posture and skeletal muscle control

Question 9

Corticospinal Tracts

Answer 9

GSE: voluntary control of skeletal muscle of the body

Question 10

reticulospinal tract

Answer 10

Pontine and Medulla

Both influence reflexes and voluntary movements and carry autonomic information from the hypothalamus to the lateral horn of T1 to L2 and S2, S3, and S4 segments of the spinal cord

Question 11

Tectospinal Tract

Answer 11

postural movements of the head in response to visual and auditory stimuli

Question 12

Lateral Vestibulospinal

Answer 12

receives input from the inner ear via the vestibulocochlear nerve and the cerebellum

role: postural stabilization