Neurology

Question 1

Anoxia

Answer 1

Lack of O2

Question 2

Axonal Shearing

Answer 2

When the brain’s axons are stretched to the point of breaking, causing damaged cells to die.

Question 3

Brain herniation

Answer 3

Rising pressure inside the brain or hematoma causing parts of the brain to shift.

Question 4

Cerebral atrophy

Answer 4

Loss of nerve cells in the brain and connection between them,

Question 5

CT Scan

Answer 5

Computerized Tomography - detailed info about spinal cord or brain damage.

Question 6

Hematoma

Answer 6

Pool of blood; or bruise inside the skull.

Question 7

Hemorrhage

Answer 7

internal or external bleeding caused by damage to a blood vessel.

Question 8

Meninges

Answer 8

highly vascular membranes separating the cranium and the brain.
-dura mater, arachnoid membrane, pia mater

Question 9

Epidural Hematoma

Answer 9

Condition in which blood leaks into the epidural space.

originates from meningeal arteries under the cranium

as blood accumulates in the skull, expansion squeezes out normal liquid contents - CSF is forced out first-

O2 delivery is compromised, anaerobic metabolism occurs in the affected brain cells.

S/S DONT HAPPEN UNTIL HOURS LATER

Question 10

Subdural Hematoma

Answer 10

Accumulation of blood between the dura mater and arachnoid membrane. Involves venous bleeding.

S/S MAY NOT show for several hours or DAYS after the incident.

Question 11

Monro-Kellie Doctrine

Answer 11

The volume of the intracranial contents doesn’t change.

A mass results in squeezing out of an equal volume of CSF and venous blood, the ICP remains normal.

Exponential increase in ICP