I
senses change in their environment
stimulates a nerve impulse
travels to the CNS
What are receptors?
Nerve responsible for hearing and equilibrium
mucous membrane
lubrication - eye
What is the conjunctiva?
Olfactory receptors in upper nasal cavity
triggers nerve impulse
recorded in the limbic system
What is the sense of smell?
visceral sensory neurons share somatic pathways
the cortex and confuses the information received
sends message to the wrong effector
What is referred pain?
focusing apparatus of the eye
divides the eye into two cavities
What is the lens?
tympanic cavity
tympanic membrane
auditory ossicles
What are parts of the middle ear?
photoreceptors
fovea centralis
optic disk
What is the retina?
osseous
membranous
perimlymph
endolymph
semicircular canals
What are parts of the labyrinth?
sclera
choroid
retina
What are the coats of the eye?
CN II
What is the optic cranial nerve - vision?
What is the occipital lobe?
Sensory receptors on the tongue send information to cortex for interpretation
What are taste buds?
sharpest point of vision - cones
What is the fovea centralis?
CN III
What is oculomotor - eye movement, pupil size?
aqueous
vitreous
What are the humors of the eye?
when stimulated sends information to the cortex on the VIII cranial nerve
What is the organ of Corti?
the bending of light
What is refraction?
static - otoliths
dynamic - semicircular canals
What are the types of equilibrium?
senses change in chemical concentrations
associated with the sense of smell and taste
What are chemoreceptors?
What is the cerebellum?
series of ducts
drains into the nasal cavity
tears
What is the lacrimal apparatus?
external
middle
internal
What are the divisions of the ear?
light receptors in the eye
What are photoreceptors?