Spinal Cord + Brainstem

Question 1

what is the spinal cord function?

Answer 1

conduit function- ascending (sensory) and descending (motor) pathways; intrinsic function- processing: reflexes and central pattern generators

Question 2

what spinal cord levels has a greater enlargement in the ventral horn? why does this enlargement exist?

Answer 2

cervical and lumbar spinal levels; its for extra cell bodies for motor neurons innervating skeletal muscle fibres

Question 3

Which spinal levels has 2 columns (fasciculus gracilis and fasciculus cuneatus)?

Answer 3

anything above T6

Question 4

what is the brainstems function?

Answer 4

conduit function- ascending (sensory) and descending (motor) pathways; intrinsic function- contains nuclei of cranial nerves III to XII, reticular formation

Question 5

What are the 3 longitudinal layers in the brainstem?

Answer 5

base, tegmentum, tectum

Question 6

What are the anterior features of the midbrain?

Answer 6

cerebral peduncles, mamillary bodies, interpendunclar fossa

Question 7

What are the anterior features of the medulla?

Answer 7

pyramid, olives, median fissure

Question 8

What are the posterior features of the midbrain?

Answer 8

superior and inferior colliculus

Question 9

What are the posterior features of the pons?

Answer 9

superior, middle and inferior peduncles

Question 10

What are the posterior features of the medulla?

Answer 10

obex, FC, FG