Anatomy

Question 1

Name the major surface lobes/structures, sulci and gyrus of the brain

Answer 1

Question 2

What is the major role of the basal ganglia ?

Answer 2

co-ordination of movement

Question 3

Name and label the components of the basal ganglia

Answer 3

The basal ganglia consists of the caudate nucleus, putamen, Globus pallidus and lentiform nucleus

Question 4

Label the internal capsule. Disruption of which artery in a stroke effects it, and what is its effect?

Answer 4

MCA
Results in contralateral hemiparesis

Question 5

What rate is CSF produced and reabsorbed?

Answer 5

450ml/24hr

Question 6

What volume of CSF is in the brain and spinal cord?

Answer 6

150-75ml in the brain and 75ml in the spinal cord

Question 7

Where is CSF secreted from ?

Answer 7

The choroid plexus in the ventricles and the ependymal lining of the ventricles

Question 8

Where is CSF absorbed?

Answer 8

Subarachnoid granulations

Question 9

Describe the flow of CSF

Answer 9

1. from lateral ventricle through the foramen of Monro into the third ventricle.
2. From the third ventricle via the aqueduct of Sylvius into the fourth ventricle
3. from the fourth ventricle through the posterior foramen of magendie and lateral foramina of luschka into the cisterna magna
4. CSF then circulates around the spinal cord and subarachnoid space and is reabsorbed through arachnoid granulations into the cerebral venous system.

Question 10

Name the layers of tissue to the brain. External to internal.

Answer 10

Skin, Skull, Dura mater, arachnoid mater, Pia mater and brain.

Question 11

In which space is CFS contained

Answer 11

The subarachnoid space, between the pia mater and arachnoid mater

Question 12

Where does an extradural haematoma occur

Answer 12

Between bone and dura mater

Question 13

Where does a subdural haematoma occur?

Answer 13

Between dura mater and arachnoid mater

Question 14

Where does a subarachnoid haemorrhage occur ?

Answer 14

Between the arachnoid mater and pia mater.