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Flashcards in Space occupying lesions Deck (14):
1

What are the 5 layers of the scalp?

SCALP=
Skin
Connective tissue
Aponeurosis
Loose connective tissue
Pericranium

2

What vessel is found directly behind the pterion?

middle meningeal artery

3

What are the meningeal layers?

Dura mater
arachnoid mater
sbarachnoid space
pia mater

4

Name the portion of dura overlying overlying the cerebellum.

Tentorium cerebelli

5

Name the dura mater structure separating the two cerebral hemispheres.

falx cerebri

6

Where is the CSF produced?

choroid plexus of the ventricles

7

Where is the CSF reabsorbed?

into dural venous sinuses, via arachnoid granulations

8

List the ventricles of the brain and the canals that connect them:

1. R and L lateral ventricles
2. Foraminae of Monro
3. 3rd ventricle
4. cerebral aqueduct
5. 4th ventricle
6. central canal (of the spinal cord) OR subarachnoid space

9

What is hydrocephalus?

increased CSF volume

10

List the 3 types (and locations) of bleeding in the cranial cavity:

1. Extradural haemorrhage
-between bone and dura

2. Subdural haemorrhage
-between dura and arachnoid

3. Subarachnoid haemorrhage
-into CSF

11

What layers does an epidural catheter pass during spinal anaesthesia?

1. Supraspinous ligament
2. interspinous ligament
3. ligamentum flavum
4. epidural space (fat, veins

12

What layers does the needle pass during a lumbar puncture?

1. Supraspinous ligament
2. interspinous ligament
3. ligamentum flavum
4. epidural space (fat, veins
5. dura mater
6. arachnid mater
7. into subarachnoid space

13

Where is a lumbar puncture performed?

between L3/L4 vertebrae

14

At what vertebral level does the spinal cord end?

L2 evertebra