tracts

Question 1

the process by which stimuli are converted to APs by sensory

receptors such as muscle spindles and nociceptors

Answer 1

Transduction

Question 2

the process by which nerve signals enter and ascend the CNS in
various tracts

Answer 2

Transmission

Question 3

the process by which electrochemical activity from other ascending
inputs or signals descending from the brain can increase or decrease sensory
transmission. In this manner the intensity of sensory input to the cerebral cortex can be controlled.

Answer 3

Modulation

Question 4

the final process which results in subjective feelings. It is a poorly
understood combination of transduction, transmission, and modulation. It can be
altered by many phenomena including sleep and emotions such as fear, rage and
depression.

Answer 4

Perception

Question 5

relatively large expanses of myelinated tracts

Answer 5

white matter

Question 6

white matter that connects and transmits impulses between gyri in the same hemisphere

Answer 6

association fibres

Question 7

white matter that transmits impulses from the gyri in on cerebral hemisphere to the corresponding gyri in the opposite cerebral hemisphere

Answer 7

commissural fibres

Question 8

a ridge or fold in the brain

Answer 8

gyrus

Question 9

what is the largest of the commissural tracts

Answer 9

corpus callosum

Question 10

white matter that forms tracts that transmit APs between the cerebrum and other parts of the CNS

Answer 10

projection fibres

Question 11

what is the gate control theory of pain

Answer 11

non-painful sensations from the periphery or the brain can override and reduce painful sensations