Imaging of the brain

Question 1

Function of coronal suture

Answer 1

Separates frontal and parietal bones

Question 2

Function of sagittal suture

Answer 2

Separates parietal bones

Question 3

Function of lambdoid suture

Answer 3

Separates parietal from occipital

Question 4

Function of squamous suture

Answer 4

Separates temporal from parietal

Question 5

Which suture fuses early on in life?

Answer 5

Metopic

Question 6

What are the cranial fossa separated by?

Answer 6

Sphenoid and petrous bones

Question 7

Function of Sylvian fissures

Answer 7

Separates frontal from parietal lobe

Question 8

Where is primary motor cortex?

Answer 8

Anterior to central sulcus, within posterior frontal lobe

Question 9

Where is primary sensory cortex?

Answer 9

Posterior to central sulcus, within anterior parietal lobe

Question 10

Function of transverse fissure

Answer 10

Separates parietal from occipital lobe

Also called Pareto-occipital fissure

Question 11

Where are the temporal lobes?

Answer 11

Floor of middle cranial fossa

Extend towards occipital lobe

Question 12

What is the tentorium?

Answer 12

Thick band above cerebellum

Question 13

Where are the cerebellar tonsils?

Answer 13

Descend through foramen magnum in disease (e.g. increased ICP)

Question 14

What is a Chiari malformation?

Answer 14

Tonsils pointed inferiorly, issues with cervical spine and thoracic/cervical cord

Question 15

What is the lentiform nucleus made from?

Answer 15

Putamen and globus pallidus

Question 16

What is the corpus callousum?

Answer 16

Bundle of white matter tracts

Question 17

Function of corpus callous

Answer 17

Communication between hemispheres

Question 18

How does hydrocephalus form?

Answer 18

Cysts in pineal gland

Question 19

What connects the third ventricle to the lateral ventricle?

Answer 19

Foramen of Monro

Question 20

What are the basal cisterns?

Answer 20

CSF reservoirs around base of brain

Question 21

What is the internal carotid artery formed from?

Answer 21

Two middle cerebellar arteries

Question 22

What does the basilar artery separate into?

Answer 22

Posterior cerebral arteries

Question 23

Where is the most common site of an aneurysm?

Answer 23

Anterior communicating arteries

Question 24

Risk factors for venous thrombosis

Answer 24

Hormonal imbalance, prothrombotic, infection, tumours

Question 25

Symptoms of venous thrombosis

Answer 25

Headache, decreased consciousness, vomiting, vision

Question 26

Main drainage of the brain

Answer 26

Cortical veins, straight sinus, transverse sinus which runs into sigmoid sinus

Question 27

What do all veins drain into?

Answer 27

Internal cerebral veins