Ch 16 Flashcards
(26 cards)
Modality
type of receptor (5)
What receptors are for pain
Nociceptors
What are mechanoreceptors for
pressure or stretch
Where are general senses distributed in the body
widely distributed
What do special senses involve
cranial nerves
Stimulus types
Exteroceptors (outside the body), Interoceptors (within the body), Proprioceptors (position of our body in space without looknig at ur body)
Free Nerve endings
Type of general sense receptor. widespread and allow us to detect pain, heat, cold. Unencapsulated
Tactile disc
for light touch and pressure. Unencapsulated
Hair receptors
Light touch, movement of hair. Unencapsulated
Tactile corpuscles
(fingers, tongue, nipples) encapsulated. Detect texture and light touch. encapsulated
End bulb
mucous membrane. Similar to tactile corpuscles. encapsulated
Bulbous corpuscle
dermis, joint capsules. Heavy continous touch or pressure. encapsulated
Lamellar corpuscles
Deep pressure stretch tickle….dermis, boobs, joint capsules. encapsulated
Muscle spindle and tendon organs
near a tendon. tension in muscles (proprioception). encapsulated
What creates precision in touch/feeling
more neuron receptors in a receptive field
What’s referred pain
pain from visceral areas manifesting itself in superficial sites. (coming home to a messy house and asssuming its the bad kid)
Gustation
taste
Lingual papillae
bumps on ur tongue
Filiform
no taste buds in them. Tiny spikes. All over tongue
Foliate
ridges on tongue sides. Buds on children but not in adults
Fungiform
mushroom shaped bumps, have taste buds. Dispersed throughout tongue
Vallate
large bumps that make a V at the back of the tongue. Have taste buds
What two parts of the tongue have taste buds in (adults)
Fungiform and Vallate
Structure of taste buds
Taste cells with taste cells in a pore. The taste hairs have chemo receptors that detect specific compounds. Synaptic vesicles released to brain. Brain interprets based on the compounds detected.
