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72 Cards in this Set
- Front
- Back
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What are receptors |
Structures that detect stimuli |
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What are the 3 types of receptors |
1.Somatic receptors (General senses) 2.Visceral receptors (General senses) 3.Special senses receptors (Special senses) |
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where are somatic receptors located |
body wallls |
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what are 5 examples of stimuli that would be received through somatic receptors |
Chemicals,temperature, pressure, pain, touch |
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visceral receptors are located where |
organ walls |
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what are 3 examples of stimuli that would be received through visceral receptors |
chemicals,temperature,pressure |
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where are the Specialsenses receptors located |
organs in the head |
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what are 4 examples of special senses receptors |
gustation,olfaction, vision, hearing, equilibrium |
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What are the 6 modalities of stimulus |
chemoreceptor,photoreceptor, mechanoreceptor,nociceptor,baroreceptor, thermoreceptor |
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chemoreceptor detects what |
moleculesdissolved in fluid |
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thermoreceptor detects what |
changes in body temperature |
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photoreceptor detects what |
changes in light intensity, color, & movement |
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mechanoreceptor detects what |
physical changes due to touch, pressure, vibration, and stretch |
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baroreceptor detects what |
pressurechanges within body structures |
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nociceptor detects what |
tissue damage and pain |
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Where are tactile receptors located |
dermis and subcutaneous |
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What are the most common receptors in the body |
tactile receptors |
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What is the modality of tactile receptors |
mechanoreceptor |
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what are the 2 types of tactile receptors |
1.Encapsulated 2. Unencapsulated |
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What are the 2 types of unencapsulated tactile receptors |
free nerve ending,hair root plexus |
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free nerve ending tactile cells detect what |
pain and temperature |
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root hair plexus tactile cells detect what |
movement of hair follicles |
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What 2 types of encapsulated tactile cells are there |
Lamellated corpuscles, and tactile corpuscles |
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what do lamellated corpuscles detect |
deep pressure |
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what do tactile corpuscles detect |
light touch |
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gustatory cells have what accessory structure |
microvilli |
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where are gustatory cells located |
taste buds in papillae |
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what modality do gustatory cells use |
chemoreceptors |
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sweet taste means what are present |
sugars |
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salty taste means what are present |
metal ions (Na+) |
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sour taste means what are present |
H+ |
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a bitter taste means what are present |
alkaloids |
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umami taste means what are present |
amino acids - glutamate |
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the anterior 2/3 of your tounge uses what cranial nerve |
7 |
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the posterior 1/3 of your tongue uses what cranial nerve |
9 |
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steps in the gustatory pathway (3)
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medulla oblongata, thalamus, primary gustatory cortex (insula) |
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olfactory hairs are receptors with what |
free nerve endings |
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where are olfactory receptor cells located |
olfactory bulbs |
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what is the modality of olfactory receptor cells |
chemoreceptors |
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what cells Detect airborne molecules |
olfactory receptor cells |
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what is the olfactory pathway (4) |
cribriform foramina,olfactory bulb, olfactory tract, primary olfactory cortex of the temporal lobe |
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what is the retina |
internal layer of the eye |
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what two layers make up the retina |
pigmented layer, neural layer |
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what is the function of the pigmented layer of the retina |
absorb light |
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what is the function of the neural layer of the retina |
Contains photoreceptors |
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what 3 layers make up the neural layer of the retina from outermost to innermost |
photoreceptor layer, bipolar cells, ganglion cells |
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the photoreceptor layer of the neural layer of the retina contains what |
rods and cones |
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the ganglion cells of the neural layer of the retina is where _____ happens |
axons form with CNII |
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what is Fovea centralis |
the spot in your vision that gives you the sharpest vision because there is the Highest conctration of cones, few rods. |
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explain the visual pathway (9) |
Photoreceptors , bipolar cells, ganglion cells, optic nerve (CN II) ,optic chiasm (decussate) , optic tract , superior colliculi , thalamus ,Primary visual cortex (occipital lobe) |
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what are the 3 regions of the ear |
external, middle, and inner |
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the external ear is also called what |
auricle |
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the auricle contains what 2 things |
external auditory meatus and tympanic membrane |
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what 3 ossicles are contained in the middle ear |
-Malleus -Incus -Stapes |
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the inner ear has a bony labrynth that contains what 3 things |
1.Vestibule 2.Semi circular canals 3. Cochlea |
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the vestibule has what kind of receptors |
Mechanoreceptors (hair cells) |
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specifically what makes up the mechano receptors of the vestibule |
Stereocilia, 1 kinocilium |
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the receptors in the vestibule are embeded in what |
otolithic membrane (gel) |
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the vestibule is located where |
in the macula |
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what does the vestibule detect |
acceleration |
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the vestibule contains what 2 structures |
1.Utricle 2.Saccule |
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the Semi-circular canals have what kind of receptors |
mechanoreceptors, stereocillia |
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the receptors in the Semi-circular canalsembedded in what |
cupula (gel) |
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the Semi-circular canals are located where |
ampulla (crista ampularis) |
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the semi-circular canals detect what |
rotational motion (3 axis) |
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What 3 canals make up the semi-circular canals |
Anteriorcanal -Lateral canal -Posterior canal |
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explain the Equilibrium pathways (5 steps) |
-Motion endolymph moves cupula /otolithic membrane sterociliabends vestibular branch of CN VIII (vestibulocochlear) medulla oblongata |
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what receptors are in the cochlea |
mecanoreceptors - stereocillia |
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the recptors in the cochlea are embeded on what |
tectorial membrane |
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the receptors in the cochlea are located where |
basilar membrane |
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the receptors in the cochlea detect what |
sound |
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explain the auditory pathway (5 steps) |
-Bending of cilia cochlear nerve vestibulocochlear nerve CN VIII thalamus primary auditory cortex |
