Chapter 17 - Neural Pathways

Question 1

primary sensory pathways

Answer 1

sensory

Question 2

secondary sensory pathways

Answer 2

synapsis into brain (thalamus)

Question 3

tertiary sensory pathways

Answer 3

take info to cerebral cortex

Question 4

posterior funiculus-medial lemniscal

Answer 4

limb position, discrimitive touch, precise pressure, vibration
enters SC and ascends in fasciculus cuneatus or fasciculus gracilis

Question 5

anterolateral pathway

Answer 5

crude touch and pressure, pain, and temperature

Question 6

spinocerebellar pathway

Answer 6

coordinates body movement and maintains posture

Question 7

motor (descending) pathways

Answer 7

upper and lower motor neurons

direct: conscious
indirect: unconscious

Question 8

corticobulbar tract

Answer 8

direct - conscious

controls eye movement, facial/throat muscles, back and neck muscles

Question 9

corticospinal tract

Answer 9

direct-conscious

lateral: sk muscle performing skilled movements of limbs
anterior: axial sk muscles

Question 10

rubrospinal tract

Answer 10

indirect - unconscious

precise movements and tone of limb flexor muscles

Question 11

reticulospinal tract

Answer 11

indirect

unskilled automatic movements related to posture/balance