CH4.1, 4.2

Question 1

Meninges

Answer 1

three transparent membranes that protect the brain

Question 2

Cerebrospinal Fluid

Answer 2

fluid between membranes that acts as a cushion, skull acts as final layer of protection

Question 3

Arteries

Answer 3

transport oxygen and nutrients through blood

Question 4

Blood brain barrier

Answer 4

formed between capillaries limits harmful things that could be in the blood stream

Question 5

Grey matter

Answer 5

nerve cell bodies and connections made with white matter

Question 6

White matter

Answer 6

nerve fibers that connect distant brain areas to one another, fatty coating that makes brain look white

Question 7

Brain ablation

Answer 7

removing or destroying part of brain e.g area of tissue
Involves
- Cutting out + removing
- Irreversible

Question 8

Brain lesioning (electrical stimulation of brain)

Answer 8

disrupting or damaging normal structure of brain
Involves
- Any area of damage
- May/can be temporary

Question 9

Split brain experiment

Answer 9

cutting the main band of nerve tissue (corpus collosum) that connects the two hemispheres -> this stops hemispheres from communicating
Affect:
Reduce the incidence and severity of epileptic seizures

Question 10

Corpus callosum

Answer 10

tissue that connects the two hemispheres

Question 11

What did the splitbrain experiment find out?

Answer 11

found the concept of contralateral organizing -> controls body from opposite side

Question 12

What does the left hemisphere control?

Answer 12

• Language + voluntary movement on the right side of the body
• can see objects from the right
• can say objects
• can indicate what they saw by drawing with right hand

Question 13

What does the right hemisphere control?

Answer 13

• right side is responsible for voluntary movement of the left side of the body
• cant say what they saw
• can indicate what they saw by drawing what they saw