Awesome Eye Defenses
Regularly bathe the eye's surface with fresh tears that flush away dirt and bacteria
Eyelids
Difference between the two main types of photoreceptors in the eye responsible for vision
Cones are sensitive to color-respond to color wavelengths (red, blue, green).
Rods are sensitive to light and respond to shading.
The vertical measure of loudness
Amplitude
Four types of cutaneous receptors
The number of chemoreceptors that respond to odorants in the olfactory epithelium
Up to 400 kinds!
A thin, transparent, slick layer that protects the eye from infection
Conjunctiva
Make retinal cells sensitive to light
Photo pigments
The function of the auditory ossicles
To amplify the vibration of the eardrum to the oval window (20x)
The body's ability to physically balance in space and not fall over depends on what four feedbacks to the brain?
Vestibular, muscle/tendon feedback, pressure receptors in the skin, and our vision
Gas companies add this to help consumers recognize when there is a potential gas leak
Foul-smelling natural chemical, similar to bad breath
Bony depression offering protection of the eye
Orbit
Eye conditions that can cause myopia
1. Eyeball is too long
2. Cornea is too curved
Decibel value that will rupture the eardrum
150 dB
Four conditions of severe heat-related dehydration
Heat cramps
Heat fainting or syncope
Heat exhaustion
Heat stroke
Strong electrical current jumping several inches from one object to another
Arccing
Reflex-like action forcefully closing the eye for protection
Wincing
Most common eye injury
Corneal abrasion
An inflammation of the inner ear from an infection causing symptoms of nausea, vomiting, and difficulty walking/standing for days to weeks
Labyrinthitis
Determined by combining the air temperature and wind speed using a mathematical formula
Wind chill factor
Responsible for the hot taste of spicy food
Capsaicin
Six components of tears to help protect the eye
Water, salt, oil, glucose, bacteria-fighting enzymes, and antibiodies
Treatment options for photokeratitis
1. Cold compresses
2. Prescription for pain relief or inflammation reduction
3. UV protection sunglasses
Overconcentration on the sense of vision for cognitive awareness, thereby suppressing vestibular feedback
Spotting
Time of day when body temperature is lowest
Between 2-6 am
Electric outlet that interrupts electric circuits when a short happens
GFCI-ground fault circuit interrupter