NB2 devisions of NS, anatomical parts of brain, central attachments of cranial nerves

Question 1

What type of glial cells are essential in providing neurones with nutrients and structure?

Answer 1

astrocytes

Question 2

What type of cells provide an active immune response in the CNS? What do they specialise from?

Answer 2

microglia

Orginate from neuroepithelium od mesoderm origin, monocyte/macrophage line

Question 3

In terms of function, how do oligodendrocytes differ from schwann cells?

Answer 3

oligodendrocytes provide myelination to multiple neurones and structural support, while schwann cells provide myelination to 1 neurone and little structural support

Question 4

Name the CNS cell that looks like a star:

Answer 4

astrocyte

Question 5

What structure is shown in red?

Answer 5

corpus callosum

Question 6

Label the thalamus and hypothalamus on a mid-sagittal section of the brain:

Answer 6

Question 7

Label the hypothalamus and pituitary gland

Answer 7

Question 8

What is the function of

1) thalamus
2) Hypothalamus
3) Pituitary gland
4) corpus callosum

Answer 8

1) decided what info is sent to the cortex of the brain
2) controls hormone release, homeostasis (temperature control)
3) release hormone
4) bridge connecting the 2 hemispheres of the brain

Question 9

Which cranial nerve is A, B C and D

Answer 9

A= 6 , abducens

B=3 Occulomoter

C=1 Olfactory

d=5 trigeminal

Question 10

1) Which cranial nerves exit lateral to olives?
2) Where does cranial nerve 3 ,6 and 12 exit brain?

Answer 10

1) 9 ( glassopharyngeal) and 10 (vagus) , 9 sup to 10 obvs
2) 3 (occulomotor) exits towards optic chiasm sup to pons

6 ( abducens) on top of pons, exit medullqa heading upwards

12 mesial to olives

Question 11

Which cranial nerves exit laterolsuperio to olives, but inferior to cranial nerve V?

Answer 11

7 (facial) and 8 (vestibulocochlear)