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Sensory organs and system - Coggle Diagram
Sensory organs and system
type of stimulus
mechanoreceptors
thermoreceptors
photoreceptors
chemoreceptors
nociceptors
location
exteroceptors
interoceptors
proprioceptors
structure
nonencapsulated nerve endings
encapsulated nerve endings
lamellar corpuscles
bulbous corpuscles
muscle spindles
tendon organs
joint kinesthetic receptors
Senses
Touch : nerve
structure
spinal nerve
epineurium
perineurium
unmyelinated nerve fiber
myelinated nerve fiber
type
mixed nerves
contain both sensory and motor neuron & transmit umpulse from and to the CNS
sensory nerves
contain sensory neuron & transmit impulse to CNS
motor nerves
contain motor neurons & transmit impulse from the CNS
Cranial nerves
olfactory
oculomotor
trochlear
abducens
vestibulorcochlear
hypoglossal
accessory
optic
trigeminal
facial
vaus
glossopharyngeal
Vision : Eye
eyelashes
trigger reflex blinking
eyelid
covers and protect the eye
eyebrow
prevent sweat from tickling into eyes
structure
conjunctiva
lining eyeball
lens
suspensory ligament
iris
aqueous chamber
pupil
cornea
cilliary body
sclera
rectus muscle
choroid
retina
structure
cones
bright light & colours
rods
dim light & periphaeral vision
fovea
optic nerve
virtreous humor
blind spot
lacrimal apparatus
lacrimal gland
hearing : ear
structure
external
auricle
helix
auditory canal
lobule
middle
tympanic membrane
tympanic cavity
incus
malleus
inner
stapes
vestibule
vestibule nerve
cochlear nerve
round window
cochlea
eustachian tube
tasting : tounge
taste buds
circumvallate pappilla
foliate papilla
filiform papilla
fungiform papilla
approx 10k taste buds on papilla
gustatory epithelial cells
basal epithelial cells
combine sweet sour bitter and salty
structure
smelling : nose
structure
chemoreceptor
volatile substance
olfactory bulb
olfactory tract
to the brain
olfactory epithelium
nasal chonchae
path of air