practical 1 Flashcards
Cutaneous Receptors
Sensory receptors that help us detect special senses
Proprioceptors
Sensory recpetors that provide information about body movements and position
Tactile localization
Brains ability to determine which portion of the skin has been touched.
refraction
bending of light rays passing from one medium to another
emmetropia
perfect vision, eye can accomodate properly
myopia
nearsightedness
astigmatism
Irregularities in the lens/cornea that lead to blurred vision
hyperopia
hyperopia
farsightedness
Presbyopia
Old vision, less elastic lens cause difficulties in close and near vision
Weber test
Tests centralization vs lateralizatio of sound
Rinnes Test
Compares bone vs air conduction
Olfactory
Sense of smell
Gustation
Sense of taste
Ciliary body
Produces aqueous humor, changes lens shape, ,holds the lens in place
Lens
Bends light that enters the eye and focuses it to create clear images
Cornea
Focuses light onto retina; protects eye from germs, dust, debris, and UV radition
Cones
Allows us to see collor, active at higher light levels
Rods
Responsible for vision at low light levels, gray tones.
Ear ossicles
Transmit sound vibrations from tympanic membrane to inner ear
Malleus
Recieves vibrations from tympanic membrane and passes them to incus
Incus
Receives vibrations from malleus and sends them to the stapes
Stapes
Attached to oval window.
pharyngotympanic tube
Regulate and equalize the pressure of the middle ear with the atmospheric pressure
Choroid
Supplies retina with nutrients and maintains the temperature and volume of the eye.