Introduction into neurology

Question 1

Nervous system composed of (2 types of cells)

Answer 1

neurons, glial cells

Question 2

Grey matter

Answer 2

areas composed of mostly cell bodies

Question 3

White matter

Answer 3

areas rich in axons

Question 4

reticular matter

Answer 4

areas where cell bodies and axons are mixed

Question 5

Nucleus

Answer 5

a large number of cell bodies grouped together

Question 6

tract

Answer 6

a large collection of axons

Question 7

Four issues with nourishment of the brain

Answer 7

1) approx 2% of our body weight but requires 20% of our blood
2) if the blood supply is interrupted, neurons quickly fail
3) arteries that supply the brain are thin-walled with little muscle
4) blood distribution is centralized from the heart (internal carotid artery which divides into anterior cerebral artery, middle cerebral artery (speech and language)

Question 8

Stroke

Answer 8

interruption of blood flow to the brain. Very good change it’ll result in speech and language damage (not designed to protect these areas)

Question 9

Where language is localized

Answer 9

cerebrum (cerebral cortex) – corpus collosum, hippocampus, amygdala, cerebellum (motor control)