anatomy sensory receptor

Select right match for structure of sensory receptor

• free nerve ending

• associated to pain,thermal,tickle,itch and touch sensation

• bare dendrite unspeacialized afferent nerve fiber sending signal to sensory neuron

• dendrite enclose in a connective tissue capsule for pressure,vibrate and touch

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sensory receptor structure

• Encapsulated nerve endings

• classified as stimulus detector

• located in retina of eye,inner ear and taste bud of tongue

• Seperated cells

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sensory receptor structure

• Dendrite enclose in a connective tissue capsule

• Free nerve ending

• for pressure,vibrate and touch sensation

• Encapsulated nerve ending

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Sensory Receptor Function

• Mechanoreceptor-

  mechanical pressure,vibration,hearing,sensation of touch

• Nociceptor-

  changes in temperature

• Thermorceptor-

  respond painful stimuli/injury to body tissue

• osmoreceptor-osmotic pressure of body fluid

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Sensory Receptor Function

• photoreceptor-

  detect visible light that strike onto retina

• osmoreceptor-mechanical pressure

• chemoreceptor-chemical in mouth,thru nose and in body fluid

• nociceptor-respond to painful stimuli/injury to body

Select correct match for sense of smell(olfactory)

• contain 10-100 million receptor

• consist epithelial cells

  *supporting cell

  *gustatory receptors cell

  *basal cell

• smell receptor cell

  *olfactory receptor

  *supporting cells

  *basal stem cells

• located inferior ethmoid bone

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sense of taste(gustation)

• detection flavor by mouth

• receptor located at confined to small projection of tongue called pappilae

• sense of balancing

• taste stimuli

  i)sweet

  ii)salty

  iii)sour

  iv)bitter

  v)umami

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Sense of vision

• more than half receptor located in the eyes

• detection of odorant

• sensing variation of colour,light,and dnd dark

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Sense hearing and equilibrium

• great sensitivite structure

• can convert sound vibration into electrical signal faster than photoreceptor

• contain info o our orientation in space related to gravity and control of movement

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type of somatic sense-tactile sensation

• touch-

  *meissner corpuscles

  *merkel disc

  *ruffini corpuscles

• itch and tickle-

  *ruffini corpuscles

• vibration *meissner corpuscles

  *pacinian corpuscles

• pressure-

  *free nerve ending