1. interoreceptors - within the body
in viscera for example
2. exteroreceptors - on the body surface
1 of 16
describe the different types of receptor based on stimuli
1. thermoreceptors respond to temperature
2. photoreceptors respond to light
3. nociceptors respond to pain
4. mechanoreceptors respond to movement/pressure change
5. chemoreceptors respond to changes in body fluid composition
which tastes are detected primarily by the fungiform papillae?
sweet
salty
savoury
4 of 16
which papillae are most sensitive to bitter tastes and give examples
the circumvillate papillae
bitter tastes include drugs, phenols and alkaloids
5 of 16
explain the sour taste
H+ ions make foods taste sour and are mostly detected by the foliate papillae on the on the edge of the tongue
6 of 16
which tastes belong to which taste receptors
sweet, savoury, and bitter = G-protein coupled receptors
ion channels respond to salty and acid
7 of 16
explain olfaction
1. odour molecules dissolve in mucous
2. the dissolved molecules bind to cilia on olfactory receptors/or bipolar neurones
3. the receptors are activated and create an action potential
4. olfactory bulb nerves synapse with mitral cells which send signals t
endolymph is found in the organ of corti
then tympanic and vestibular canals are filled with perilymph
10 of 16
explain sound transmission
1. sound waves vibrate the tympanic membrane
2. auditory ossicles vibrate
3. vibrations are sent down into the organ of corti
4. pressure wave pushes onto the cochlea duct
5. hair cells bend transmitting a signal
6. neurotransmitter is released generatin
11 of 16
what parts of the ear are filled with air and which are filled with fluid?
inner ear = filled with fluid
outer ear = air
middle ear ear = air
12 of 16
name the 3 forms of hearing loss and give examples
produced by the lacrimal apparatus and contain antibodies, mucus, and lysozymes
they protect and lubricate the eyes
14 of 16
name the 3 layers of the eye
1. outer most layer is the sclera (the white)
2. choroid (the red)
3. inner layer is the retina (yellow)
15 of 16
what's the difference between cones and rods?
cones - see red, blue, green colours
rods - see only black and white (not good with bright light)
16 of 16
Other cards in this set
Card 2
Front
describe the different types of receptor based on stimuli
Back
1. thermoreceptors respond to temperature
2. photoreceptors respond to light
3. nociceptors respond to pain
4. mechanoreceptors respond to movement/pressure change
5. chemoreceptors respond to changes in body fluid composition
Card 3
Front
describe the different touch receptors
Back
Card 4
Front
which tastes are detected primarily by the fungiform papillae?
Back
Card 5
Front
which papillae are most sensitive to bitter tastes and give examples
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