stomatic senses

Question 1

what is proprioception

Answer 1

awareness of body movement and location in space

Question 2

special sense receptor vs complex neutral receptors

Answer 2

complex neural receptors
- sensory neuron

(action potentials, channels open if hit threshold)

-olfaction (smell)
-somatic senses

special sense neuron
- communicate by realeasing neurotransmitters

(no action potential, need a receptor)
- vision, hearing, balance, taste

Question 3

what is a dermatome? why none on face?

Answer 3

area of skin that is mainly supplied by a afferent nerve fibers from a single dorsal root of spinal nerve

• face does not go to spinal cord goes to mendulla

Question 4

explain 4 mechanoreceptors
adaption rate
location on skin
receptive field size
sense

Question 5

somatotopy
how is area represented

Answer 5

body map

• each area is represented proportional to sensitivity of area
• etc. fingers has a larger amount of space on the somatosensory cortex

Question 6

thermoreceptors

nociceptors

Answer 6

• ability to sense temperature
• sensitive to painful situmli (hot,cold)
• slow to adjust to simulus
  -sensitive to adrupt changes

nociceptors
- pain receptors

Question 7

what do we sense a sharp main, than dull throbbing pain

Answer 7

• depends on the properties and speed of sensory neurons action potential