Reference no: EM133285144

Assignment:

1. What are mechanisms that account for the efficient energy delivery system of the middle ear system?

a. Size difference between the tympanic membrane and ossicles, angle of the ossicles

b. Size difference between the oval window and round window, angle of the malleus

c. Size difference between the tympanic membrane and oval window, angle of the ossicles, tympanic membrane is concave

d. Size difference between the malleus and stapes, angle of the tympanic membrane, "buckling" of oval window

2. What's so important about "spiral"?

a. The Organ of Corti is a coiled structure forming a spiral shape.

b. The spiral is like a staircase where all the membranes flow into each other.

c. The spiral is another name for the bony labyrinth.

d. Because the cochlea is a coiled structure forming a spiral shape, "spiral" generally refers to the hearing organ region

3. Regarding the construction of the Scala Media, what is the significance of the osseous spiral lamina?

a. It provides the outer attachment for the basilar membrane

b. It provides the inner attachment for Reissner's membrane

c. It is the location of the stria vascularis

d. It provides the inner attachment for the basilar membrane

4. What is/where is the habenula perforata?

a. A series of tiny holes in the osseous spiral lamina which permit the neurons that begin in scala media to enter the modiolus

b . A hole at the apex of the cochlea, where scala vestibuli and scala tympani communicate with each other

c. The membrane that adheres to and covers the top of the Organ of Corti

d. The holes in the osseous spiral lamina which permit the hairs in the Organ of Corti to protrude into endolymph