overview

Question 1

what is found in grey matter

Answer 1

neurons

Question 2

what is found in white matter

Answer 2

fibres

Question 3

brain development

Answer 3

• Early in development there are 3 visible swellings or vesicles in the neural tube
• Later, the first and third vesicles subdivide to give a total of 5 swellings
• These swellings will then develop into the structures of the brain, and the terms will remain attached to these regions

Question 4

what is the brainstem

Answer 4

combination of midbrain, pons and medulla oblongata

Question 5

complete the labels

Answer 5

Question 6

what are the four glial cells

Answer 6

-astrocytes
-oligodendrocytes
-microglia
-ependymal cells

Question 7

function of astrocytes

Answer 7

roles in support, maintaining the blood brain barrier, environmental homeostasis

Question 8

function of oligodendrocytes

Answer 8

produce myelin in the CNS, have numerous branches that extend to produce internodes of myelin around axons, moderately round nucleus

Question 9

function of microglia

Answer 9

cells of similar lineage to macrophages, involved in immune monitoring and antigen presentation

Question 10

function of ependymal cells

Answer 10

ciliated cuboidal/columnar epithelium that lines the ventricles

Question 11

what is inflammation of the brain called

Answer 11

encephalitis

Question 12

label this

Answer 12

Question 13

purpose of the sulcus

Answer 13

to increase the surface area - increasing number of neurons