General ear function
Name the parts of the outer ear.
pinna, ear canal
(tympanic membrane is the boundary between the outer and middle ear)
pinna is also called
auricle
What are the names of the bones of the middle ear?
malleus incus stapes
what are the muscles, the stapedius and tensor tympani, attached to?
attached to ossicles
stapedius to the stapes
tensor tympani to the malleus
name at least 2 parts of the middle ear.
ossicles & muscles (& acoustic reflex), Eustachian tube
what is the pinna made up of?
made of cartilage
what is the largest ossicle?
the malleus
where are the smallest muscles in the body?
and what are their names
the middle ear
tensor tympani
stapediuswhat are the 2 functions of the ear?
hearing and balance
why is the pinna important
aids in localization of sound and collects sound
what is the intermediate bone in the middle ear called?
incus
why are the stapedius and tensor tympani important?
reduces the strength of signal reaching the cochlea, protecting it from damage
Why is the ear also known as an energy transducer?
because it converts acoustic energy into electrochemical energy
what's a transducers? A transducer is a device that converts energy from one form to another
where are Darwin tubercles usually located?
helix
what bone is known as the hammer?
malleus
the acoustic reflex can sometimes be used as a diagnostic tool for audiologist (t/f)
TRUE
why is the vestibular system important?
this system helps us to stay balances and keep us upright and oriented
The pinna's is "s" shaped (t/f)
FALSE
Why are the ossicular ligaments important?
suspend the ossicles in the middle ear space
what is the acoustic reflex? (general)
part 2.) What bone is the stapedius muscles attached to specifically?
muscles contract in response to intense sound