Eyes and Ears Flashcards
3 divisions of the ear
- external ear
- middle ear
- internal ear
4 parts of the external ear
- helix
- auricle or pinna
- lobule
- external auditory canal
- tympanic membrane
Part of the external ear in which it is full of fat and cartilage. This is where the earrings are found
Lobule
This is where the sound waves travel and into the middle and internal ear
External auditory canal
Commonly known as the eardrums
Tympanic membrane
Dampens the sound waves
Tympanic membrane
3 parts of the middle ear
- Ossicular bones
- tensor tympani membrane
- auditory tube
what are the 3 ossicular bones
- incus
- malleus
- stapes
After going to the stapes, where does the sound waves enter?
Oval window
Smallest bone?
Stapes
other term for stapes
stirrups
3 parts of the middle ear
- semicircular canals
- vestibule
- cochlea
Responsible for balance
vestibule
Responsible for hearing
cochlea
Where does the cochlear nerve connect?
Cochlea
Where does the vestibular nerve connect?
Vestibule
Produces the tear drops
Lacrimal caruncle
What you call the area/part where to parts of muscles meet
Commissure
3 layers of the eye
- sclera
- choroid
- retina
Provides the covering of the eye, and its white color
Sclera
Layer of the eye that’s most blood vessels
Choroid
7 muscles of the eye
- levator palpebrae superioris
- superior oblique
- inferior oblique
- inferior rectus
- superior rectus
- medial rectus
- lateral rectus