UNIT 6.7 Special Senses
What is Strabismus?
"cross eyes" Eyes do not look in the same direction; caused by weak eye muscles
What is Amblyopia?
"lazy eye" poor vision in one eye b/c other eye is very dominant
Parts of the ear (this is totally pointless so refer to the power point for the labeling picture)
1.Pinna/Auricle 2.Malleus 3.Incus 4.Semicircular canals 5.Vestibular nerve 6.Cochlear nerve 7.Cochlea 8.Eustachian Tube 9.Round window 10.Stapes 11.Tympanic cavity (middle ear) 12.Tympanic membrane (ear drum) 13.Auditory Canal 14.Ear Lobe
Human nose can detect over ________ different smells
6000
_______ _________ & __________ to message
Brain; interprets & responds
What do cones do?
Cones allow us to see color and work better in bright light
What is Conjunctivitis?
Contagious inflammation of the conjunctiva; caused by bacteria
What is Macular degeneration?
Deterioration of the macula (center for your central vision)
What is Glaucoma?
Increase pressure in eye; leads to blindness →Lose peripheral vision
________ _________ sensory messages to the brain.
Nerves; carry
Which lobe of the brain is responsible for VISION?
Occipital
What are the 3 sections of the ear?
Outer, Middle, & Inner Ear
________ on the tongue contain taste buds
Papillae
Which lobe of the brain is responsible for TASTE?
Parietal
Which lobe of the brain is responsible for TOUCH?
Parietal
What do rods do?
Rods allow us to see in low light
_______ _________ ________ sensations.
Special Structures; recieve
Which lobe of the brain is responsible for HEARING?
Temporal
The eyes function:
The eye receives light rays & transmits impulses from the light rays to the optic nerve
The ears function:
Transmits sounds waves to the auditory nerve
the fundus; retina, the optic disc, macula, & fovea
What is this and what does it include?
Pupil
What is this?
Which tastes are on the back of the tongue?
bitter
What is Myopia:?
blurred distance vision (nearsightedness)
What is Hyperopia?
blurred up close vision (farsightedness)
What is Presbyopia?
blurred vision up close for 40+ year olds
What is Astigmatism?
blurry vision at all distances due to "football" shaped eye
What is the function of the semicircular canals?
contain a liquid & delicate hair-like cells that bend when the liquid moves with head & body motions →balance & equilibrium
What is the function of the cochlea?
contains delicate, hair-like cells, which compose the organ of Corti, a receptor of sound waves →HEARING
What is the function of the Olfactory receptors?
receive stimuli → brain by olfactory nerve
Which tastes are on the sides of the tongue?
sour
4 main tastes:
sour, salty, sweet, and bitter
Which tastes are on the tip of the tongue?
sweet and salty
Which lobe of the brain is responsible for SMELL?
Frontal