Central Nervous System

Question 1

what is grey matter consist of?

Answer 1

axon terminals, dendrites, neuron cell bodies

Question 2

what is the function of grey matter?

Answer 2

Signal processing/integration and initiating activity

Question 3

what is white matter consist of?

Answer 3

myelinated axons

Question 4

what is the fuction of white matter?

Answer 4

conduct, process, and send nerve signals up and down the spinal cord.

Question 5

what separates the cerebral hemisphere?

Answer 5

Vermis

Question 6

what is the cerebrum composed of?

Answer 6

two hemispheres, divided into 5 lobes (frontal lobe, parietal lobe, temporal lobe, occipital lobe, and insula

Question 7

what is the fucntion of white matter in cerebral hemisphere?

Answer 7

Aids in the communication between cerebrum and lower CNS structures

Question 8

what is association fibres?

Answer 8

connect different parts of the same cortical hemisphere

Question 9

what is commissural fibres

Answer 9

connect the cortisol hemisphere allowing to function as a coordinated whole

Question 10

what is projection fibres?

Answer 10

project to or from other CNS centres

Question 11

importance of cerebrum

Answer 11

balance, muscle tone and coordination

Question 12

what is the brain stem composed of?

Answer 12

Midbrain, pons and medulla

Question 13

how many cranial nerves aride from the brain stem?

Answer 13

12

Question 14

what are brain stem divided into?

Answer 14

base and tegmentum

Question 15

what is base?

Answer 15

region that contains the motor tract

Question 16

what is tegmentum?

Answer 16

contains vital centres like respiratory and cardiovascular, coughing, sneezing and gagging reflexes

Question 17

what is spinal cord?

Answer 17

Continuation of the brainstem and contained within the bony spinal canal and transmits nerve impulses to and from the brain and body