Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CDC 1-2
Ears
| Question | Answer |
|---|---|
| External ear The external ear has two parts. These parts are the _____ and _____. | auricle and the external auditory canal |
| The ______ is the visible part of the ear. It is composed of cartilage, and is covered with skin | auricle (also called the pinna) |
| The ______ is a tube-like passageway that is approximately 1 inch long. It leads from the pinna to the middle ear. Small hairs line the opening of the canal, and many small ceruninous glands are located within the canal. | external auditory canal |
| The ______ includes the tympanic cavity, the tympanic membrane, and the auditory ossicles. In addition, the eustachian tube is sometimes considered a part of the _____. | middle ear |
| The ______ is a space within the temporal bone. It is filled with air, and serves as a dividing chamber between the external ear and the inner ear. | tympanic cavity |
| It is a small flap that is covered by a thin layer of skin on the outside and has a thin layer of mucous membrane on the inside. The _____ is shaped like an oval and has a slight cone shape at one end that points toward the inner ear. | The tympanic membrane is also known as the “eardrum.” |
| The cone shape of the eardrum is maintained by the ______, which is one of the three auditory bones.) | malleus |
| The malleus, incus, and stapes are three tiny bones that are collectively known as the ______. Each of these bones is attached to the wall of the tympanic cavity, and together they form a bridge from the eardrum to the inner ear. | auditory ossicles |
| The stapes also is attached to a small opening in the wall of the tympanic cavity that opens to the inner ear. This opening is called the “_______.” | oval window |
| _______ is a small tube that connects the middle ear to the pharynx. It has a small flaplike valve that opens to the throat. | The eustachian tube |
| The ______ contains a system of chambers and tubes, which is called a “labyrinth.” There are various structures within this area that you should know about | inner ear |
| The _____ resembles the shape of a coiled snail shell and is covered with a thin membrane. The inside of the cochlea is divided into two compartments. | cochlea |
| The _____ is a bony chamber that is located between the cochlea and the semicircular canals. This part of the inner ear contains various membranous structures. | vestibule |
| This highly sensitive part of the inner ear is located within the cochlea. It contains approximately 16,000 hearing receptor cells that are called “hair” cells because of the tiny hairlike projections that extend outward from them. | Organ of corti |
| _______ involves determining the position of the head when no head or body movement is occurring. It is interpreted by the chambers of the vestibule. | Static equilibrium |
| _______ involves the interpretation of head and body movement. This interpretation is made possible by the semicircular canals, which act somewhat like a gyroscope when determining the position of the head and body. | Dynamic equilibrium |
Created by:
jhey33
Popular Military sets