T1 U4 CNS

Question 1

What is the collective term for the cerebral hemisphere

Answer 1

Cerebrum

Question 2

The 3 regions each hemisphere has

Answer 2

Cerebral cortex
Cebral white matter
Basal nuclei

Question 3

What does the cerebral cortex play a part in

Answer 3

Speech, memory, logic, consciousness, voluntary movement

Question 4

Which part of brain makes up most of remaining cerebral hemisphere

Answer 4

Cerebral white matter

Question 5

What does the cerebral white matter do

Answer 5

Has fibre tracts that send impulses to,from and within cortex

Question 6

What is the function of the basal nuclei

Answer 6

Regulate voluntary movement

Question 7

What diseases can result from homeostatic imbalance in basal nuclei

Answer 7

Huntingtons

Question 8

Name the 3 structures and their functions of the diencephalon

Answer 8

Thalamus. Relay station sensory impulses
Hypothalamus. NB regulatory centre of ANS
Epithalamus. 2 parts - pineal gland, choroid plexus

Question 9

Name the 3 structures and their functions of the brain stem

Answer 9

Midbrain. Composed of fibre tracts
Pons. Nuclei involved with breathing
Medulla obonglata. nuclei regulate visceral activities

Question 10

What is the main role of the reticular formation

Answer 10

Consciousness, sleep

Question 11

Main function of cerebellum

Answer 11

Coordinate balance, muscle activity. Sends message initiate appropriate corrective measures.

Question 12

What disease may come from a homeostatic imbalance in the cerebellum

Answer 12

Ataxia

Question 13

What substance protects the brain and forms part of blood-brain barrier

Answer 13

CSF

Question 14

Name the 3 meninges layers, function

Answer 14

Dura mater. Double layer
Arachnoid mater. attaches to pia
Pia mater. cling to brain surface

Question 15

Where in the brain is filled with CSF

Answer 15

Subarachnoid space

Question 16

Where is CSF formed

Answer 16

Choroid plexus

Question 17

What disease can result from a homeostatic imbalance in CSF

Answer 17

Hydrocephalus

Question 18

Difference between contusion vs concussion

Answer 18

Contusion
- difficult coordinating, nausea, headache
Concussion
- loss consciousness, 2x vision

Question 19

Difference between CVA vs Alzheimer’s

Answer 19

CVA
- stroke, numbness
Alzheimer’s
- loss memory, poor judgement

Question 20

Define EEG

Answer 20

Electroencephalogram. Detect electrical abnormalities

Question 21

2 functions of spinal cord

Answer 21

Connects PNS to brain. Nerve impulses are sent through spine

Question 22

Describe spine structure

Answer 22

Grey matter

2 posterior projections ( dorsal, posterior horns) 2 anterior projection ( ventral, posterior horns)

White

3 regions
Dorsal, lateral and ventral column containing fibre tracts

Question 23

4 major regions of the brain

Answer 23

Cerebral hemispheres
Diencephelon
Brain stem
Cerebellum