Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
50 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
What is a chain of three small bones that briddge the gap of the middle ear space from teh tympanic membrane to the oval window?
|
the ossicles
|
|
|
|
Name the three ossicles.
|
Malleus
Incus Stapes |
|
|
|
What is the largest of the ossicles?
|
The malleus
|
|
|
|
The malleus has a _____, _____, and 3 ________.
|
head, neck, processes
|
|
|
|
What are the 3 processes of the malleus?
|
Lateral
Anterior Manubrium |
|
|
|
The head of the _______ occupies 1/2 of the _________ ________.
|
head, epitympanic recess
|
|
|
|
The manubrium is attached to the ________ connective tissue of the _______ _______. This accounts for the _______ nature of the TM.
|
middle, tympanic membrane, concave
|
|
|
|
The posterior surface of the head of the malleus contains an _______ ________ for attachement to the ________.
|
articular facet, incus
|
|
|
|
Where the manubrium joins the neck of the malleus, there is a small _______ projection for attachement of the _______ ________ tendon.
|
boney, tensor tympani
|
|
|
|
The incus has a ______ and __ processes.
|
body, 2
|
|
|
|
The _____ of the _____ occupies 1/2 of the epitympanic recess.
|
body incus
|
|
|
|
The two processes of the _____ arise from the body at nearly _____ ______.
|
incus, right angles
|
|
|
|
The short process of the incus is ___ mm and runs ______ _______ and occupies the _______ ________.
|
5, horizontally backward, fossa incudis
|
|
|
|
The long process of the incus is ___ mm and runs _______ _______ to the manubrium.
|
7, vertically, parallel
|
|
|
|
Inferiorly, the end of the long process of the incus bends sharply ________ and terminates at the ______ _______.
|
medialward, lenticular procses
|
|
|
|
The stapes has a ______, _____, 2 ______, and a _______.
|
head, neck, crura, footplate
|
|
|
|
The head of the stapes has a concave ________ _______ for the reception of the _______ ________.
|
articular facet, lenticular process
|
|
|
|
What is the smallest bone in the body?
|
the stapes
|
|
|
|
The stapes has a small _____ ______ on the head-neck for attachement of the _______ _______.
|
boney spine, stapedial tendon
|
|
|
|
What are the 2 crura of the stapes?
|
posterior and anterior
|
|
|
|
The crura of the stapes originate near the ______ margin of the _______.
|
inferior, footplate
|
|
|
|
Which crura is slenderer, shorter, and less curved?
|
anterior crus
|
|
|
|
The footplate of the stapes is part _____ and part _______.
|
osseous, cartilaginous
|
|
|
|
The footplate of the stapes occupies the _____ _______.
|
oval window
|
|
|
|
How is the stapes held in place?
|
By an annular ring
|
|
|
|
What is the opening of the stapes called?
|
obturator foramen
|
|
|
|
When the stapes reaches a certain intensity, what happens?
|
it changes rotation
|
|
|
|
What is another name for the auditory tube?
|
The Eustachian tube
|
|
|
|
The Eustachian tube was named after __________ who was a ____ century _______.
|
Eustachius, 16th, anatomist
|
|
|
|
Synthroid
|
Levothyroxine
|
Thyroid hormone
|
|
|
How long is the average auditory tube in adults?
|
35-38 mm
|
|
|
|
The auditory tube is directed ________ - forward and _______.
|
downward, medially
|
|
|
|
The saggital plane of the auditory tube goes down at a ___ degree angle and forward at a ___ degree angle.
|
45, 35
|
|
|
|
What are the four sections of the auditory tube?
|
osseous
cartilaginous membranous isthmus |
|
|
|
The osseous portion of the auditory tube is __-__ mm in length.
|
12, 14
|
|
|
|
The auditory tube begins at the _____ wall just beneath the _____ ______ _________.
|
carotid, septum canalis musculotubarii
|
|
|
|
The _____ of the auditory tube is usually ope and is about __ - __ mm in diameter. It is __ mm above the floor of the middle ear.
|
lumen, 3,6, 3
|
|
|
|
The auditory tube is opened by a combination of contractions of the _______ _______ and the ______ _______ muscles. This action pulls the ______ cartilage away from the ______ cartilage.
|
tensor palatini, levator palatini, lateral, medial
|
|
|
|
The cartilaginous portion of the auditory tube varies in length - about ___ - ____ mm and has the appearance of a _____.
|
18, 24, hook
|
|
|
|
The cartilaginous portion of the auditory tube becomes more ________ as we reach the termination of the tube at the ________.
|
prominent, nasopharynx
|
|
|
|
The auditory tube is usually closed at the __________ end.
|
nasopharyngeal
|
|
|
|
The cartilaginous end of the auditory tube is completed by a _____ connected _______.
|
soft, tissue
|
|
|
|
The junction of the cartilaginous and osseous portion of the auditory tube is called what?
|
isthmus
|
|
|
|
The auditory tube opens how many times a day?
|
1000
|
|
|
|
At the pharyngeal ostium (entrance into a hollow organ or cavity), the cartilage and coverings form a prominent elevation called the _____ ______.
|
torus tubaris
|
|
|
|
The function of the auditory tube is to ________ middle ear pressure with _______ air pressure.
|
equalize, outside
|
|
|
|
A secondary function of the auditory tube is to ______ normal and diseased _______ from the middle ear.
|
drain, secretions
|
|
|
|
When the muscles are relaxed, the lumen is ______, when they are contracted, the lumen is ______.
|
closed, open
|
|
|
|
The anterior elevation of the torus tubaris is the __________ muscle.
|
salpingopalatine
|
|
|
|
The posterior fold of the torus tubaris is the ____________.
|
salpingopharyngeus
|
|
