Intro lecture

Question 1

During development..

1. Defects in spine lead to?
2. Defects in brain lead to?

Answer 1

1. Spina bifida

2. Ancephaly

Question 2

Proper words for different regions of the brain

Answer 2

proencephalon - telencephalon and diencephalon
mesencephalon
rhombencephalon - metencephalon myelencephalon

Question 3

Sulci and Gyri?

Answer 3

sulci dips

gyri folds

Question 4

describe the passage of CSF

Answer 4

lat V - interventricular forman - 3rd v - cerebral aquaduct - 4th ventricle - cental canal –> spinal cord

Question 5

Describe CSF from how its created to how it gets reabsorbed back into venous blood

Answer 5

created in the choroid plexus in all ventricles
passes through 3 openings in 4th vent (2 lat 1 med)
into subarachnoid space where it circulates the brain
reabsorbed back into venous system via arachnoid granulations

Question 6

Where are the striate arteries and what do they do

Answer 6

arising from the middle cerebral they penetrate the brain itself

Question 7

Which aa are most effected by strokes?

Answer 7

middle cerebral

Question 8

symptoms of a berry aneurism

Answer 8

blinding headache, confusion, loss consciousness

Question 9

name the 3 types of haemorrhages, where they are and which aa effected

Answer 9

epidural - between dura and bone - middle meningeal aa
subdural - between dura - cerebral vv
sub arachnoid - between arachnoid and pia (subarach space) - cerebral aa ( aneurism)

Question 10

which haemorrhage is most likely for old people

Answer 10

subdural as the brain shrinks

Question 11

What is hydrocephalus + name the 2 types

Answer 11

increased CSF volume in ventricles
non - communicating = flow blocked within/ between ventricles
communicating = problem outside vent system

Question 12

name 3 causes of communicating hydrocephalus

Answer 12

CSF overproduction
CSF not absorbed into venous blood
Venous drainage is blocked

Question 13

Whats a cistermae

Answer 13

large areas where CSF collects in subarachnoid space