Chapter 22 Flashcards
Five types of sensory receptors
chemoreceptors, nociceptors, thermoreceptors, photreceptors, mechanoreceptors
Type of receptors that sense chemical concentrations inside and outside body
chemoreceptors
Type of receptors that sense tissue damage (pain)
nociceptors
Type of receptors that sense internal and external temperatures
thermoreceptors
Type of receptors that sense electromagnetic radiation
photoreceptors
Type of receptors that sense touch and pressure
mechanoreceptors
In sensory perception, the brain receives and interprets information from these
sensory cells
White of the eye consisting of dense connective tissue
schlera
Transparent layer of cells that allows light penetration into the eye
cornea
Layer of pigmented muscles in the eye
iris
Hole in the middle of the iris of the eye
pupil
This sits behind the pupil and focuses incoming light in the eye
lens
Layer of photoreceptors at the back of the eye
retina
These photoreceptors in the eye sense light intensity
rods
The photoreceptors in the eye sense color
cones
Small region of the retina with sharpest color vision
macula
Where axons from ganglion cells exit eye and forms optic nerve connecting to brain
optic disc
Skin consists of the outer ____ and inner ___
epidermis; dermis
Small sense organs just below epidermis that responds to light touch
Meissner’s corpuscles
Sense organs lower in the dermis that responds to stronger pressure
Pacinian corpuscles
The outer ear
pinna
The tympanic membrane is otherwise known as ___
eardrum
The air-filled cavity behind the eardrum
middle ear
This connects the middle ear to the pharynx
eustachian tube
The three auditory ossicles include ___
malleus, incus, stapes
The inner ear consists of ___ and ___
cochlea and 3 semicircular canals
The cochlea is for ___
hearing
The 3 semicircular canals are for ____
balance and equilibrium
