UNIT 6.7 Special Senses

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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


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