sensory, Autonomic + Motor

Question 1

what is CNS shielded by?

Answer 1

blood-brain barrier

Question 2

what are the divisions of PNS?

Answer 2

– somatic motor system
– autonomic nervous system (ANS)
– Enteric nervous system

Question 3

what is nociception?

Answer 3

sensing, processing and responding to pain

Question 4

what is the spinothalamic tract considered?

Answer 4

second-order neuron

Question 5

what is the thalamocortical projection considered?

Answer 5

third order neuron

Question 6

what is decussation?

Answer 6

when sensory nerves cross from one side of the body to the other side

Question 7

what does the thalamus do?

Answer 7

sensory filtering and act as a sensory relay station

Question 8

what is the ‘cocktail party effect’?

Answer 8

*filters irrelevant info
*able to respond to certain cues
*rapid desensitization to irrelevant interruptions

Question 9

what may help schizophrenics when shown deficits in sensory gating?

Answer 9

nicotine

Question 10

which structure in the thalamus is responsible for sensory gating

Answer 10

pulvinar nucleus

Question 11

what does the adaptation of the sensory effect typically produce?

Answer 11

inverse effect

Question 12

what is olfaction?

Answer 12

the sense of smell

Question 13

what is corticospinal tract

Answer 13

the major neuronal pathway providing voluntary motor function

Question 14

what is the ‘final common pathway’

Answer 14

The basic circuitry for generating movement is in the spinal cord

Question 15

what is the cerebellum?

Answer 15

motor co-ordinator

Question 16

what is dysdiadochokinesia?

Answer 16

the inability to perform rapid alternating muscle movements

Question 17

what does the autonomic nervous system do?

Answer 17

Maintains the internal environment of the body. also a major drug target

Question 18

which part of the spinal coloumn is involved in sympathetic system?

Answer 18

T1 to L2

Question 19

which part of the spinal column is involved in the parasympathetic system?

Answer 19

from cranial to sacral segments

Question 20

what can the sympathetic system be described as?

Answer 20

Fight or flight

Question 21

what can the parasympathetic system be described as?

Answer 21

rest and digest

Question 22

where does the voluntary movement arise?

Answer 22

in the cortex