Session 3

Question 1

The Calvaria/Skull cap grows through which form of ossification?

Answer 1

Intramembranous ossification

Question 2

Label the different bones of the cranium

Answer 2

Question 3

Label 1 to 5

Answer 3

Question 4

What is craniosynotosis?

Answer 4

Early fusion of the sutures and Fontanelles of the skull. Anterior should fuse 18 months to 2 years, Posterior should fuse after 1-3 months

Question 5

What is the name of the foramen where the brain stem passes to form the spinal chord?

Answer 5

Foramen Magnum

Question 6

George took a blow to the side of his head. This knocked him unconscious and then went through a period of normality before a rapid decline in his condition. Doctors suspect a haemorrhage. Explain how this occurs and what haemorrhage this is likely to be?

Answer 6

An extradural haemorrhage caused by a fracture in a weakness in the skull caused the Pterion. This caused damage to middle meningeal artery which runs between the periosteal dura and inner table of bone. This can be identified on a CT with a biconcave area of blood intracranially.

Question 7

Label 1 to 5

Answer 7

Question 8

Label the 3 Dural folds 1-3

Answer 8

Question 9

Name these 7 Dural Sinuses?

Answer 9

Question 10

Veins connecting the brain to Sinuses are called?

Vein connecting the scalp to sinuses are called?

Answer 10

Cerebral Veins- Bridging Veins

Scalp Veins- Emissary Veins