Outer Ear
What are the pinna and the ear canal?
The number of layers that make up the tympanic membrane
What is three?
The smallest bones in the body
What are the Ossicles?
The osseous or bony labyrinth is a free-floating organ. True or False
What is False?
What is Reissner's Membrane?
This is the primary purpose of the pinna
What is To Collect Sound?
The two parts that make up the intermediate layer of the tympanic membrane
What is the deep part and the superficial part?
The largest of the ossicles, provides a point of attachment with the tympanic membrane. Also means "hammer"
What is the Malleus?
The three semicircular canals
What are the Anterior, Posterior and Horizontal?
Up to ten of these nerve fibers are innervated by each inner hair cell
What is VIII Vestibulocochlear?
This is the entrance to the ear canal
What is the Concha, or Concha Auriculae
Located in the upper left edge of the promontory and fits the stapes foot plate
What is the Oval Window?
These three ossicles make up the ossicular chain
What are the malleus, incus, and stapes?
The name of the aperture shared by the vertical canals (anterior and posterior)
What is the Crus Commune?
The four rows of hair cells on the organ of corti rest on these for support
What are Deiters's Cells?
The shape of the External Auditory Meatus
What is S-Shaped?
The process of bringing oxygen to the middle ear space
What is Aeration?
The neck separates these two structures
What is the head and the manubrium of the malleus?
This fluid found in the outer osseous labyrinth
What is Perilymph?
Two types of innervation received by the hair cells of the cochlea
What are afferent and efferent?
What is 2.5 cm?
About 24 mm long and can be expanded after contraction of the tensor veli palatini muscles
What is the Cartilaginous Part of the Auditory Tube?
The end point of the incus, and the point where the stapes articulates
What is the Lenticular Process?
These organs primarily sense head position rather than rotational movement
What are the Utricle and Saccule?
Separates the outer and inner hair cells
What is the Tunnel of Corti?