Anatomy & Physiology of Speech and Hearing: Chapter 9 and 10 Anatomy and Physiology of Hearing

Auditory system is the only system of communication that is...for communication

designed

Audition

refers to the processes associated with hearing. it is essential for verbal communication

Transducer describes the hearing system because it

converts acoustic energy into electrochemical energy.

Temporal bone contains the

middle ear and the inner ear

Helix

the curled margin of the pinna

Antihelix

opposite the helix and surrounds the concha (outer part of the ear that begins to lead inward)

The Scaphoid Fossa...

lies between the helix and the antihelix

Crura Anthelicis are the...

legs of the antihelix

Triangular Fossa is the...

the triangular space between the crura anthelicis

The Cavum conchae is the...

beginning cave space entrance to the middle ear

Cymba Conchae is the...

is the part of the concha above the cavum

Concha Auriculae is the...

entrance to the ear canal

Tragus is the...

flap of the epithelium-covered cartilage

Antiragus is the...

opposite of the Tragus

Interagic Incisure is...

the piece of cartilage between the Tragus and the Interagic Incisure

Lobule is the...

lobe of the ear

Ear canal is also known as the...

external auditory meatus or EAM and is s-shaped

Tympanic Membrane is...

slightly oval and is at the inner end of the ear canal.

Tympanic Sulcus is...

a tiny groove in the temporal in which the tympanic membrane fits

Tympanic Membrane is made up of 3 layers of tissue, they are...

the outer, intermediate, and the inner

Tympanic Membrane- Outer layers is a...

continuation of the epithelial lining of the eam and pinna, it is also called the cutucular layer.

Tympanic membrane- Inner Layer

Also called..

is also called the mucous layer and is continuous with the mucosa of the middle ear.

-fibrous layer and is made up of two parts; the deep part and the superficial part.

Tympanic Membrane: Intermediate layer's Deep Part is made up of...

circular fibers that are mostly found in the periphery of the membrane.

Tympanic Membrane: Intermediate layer's Superficial part is made up of...

fibers that radiate out from the handle of malleus to the periphery

Tympanic membrane's parts include:

pars flaccida, manubrium malli, umbo and the cone of light

Middle ear cavity is...

deep to the tympanic membrane. it is a small cavity that houses the middle ear ossicles

Medial wall...

separates the middle ear from the cochlea

Promontory is the...

bulge that occurs as a result of the basal turn of the cochlea

Oval Window-

upper left edge of the promontory

Round Window-

the lower left edge of the promontory

Lateral Semicircular Canal-

the upper left side of the middle ear space

Lateral Semicircular Canal: just below is the...

VII Facial Nerve

Medial wall's upper right side is the canal that houses the...

Tensor Tympani

Middle ear cavity's Anterior wall is the...

right wall

In the right wall or anterior wall of the middle ear cavity is the Orifice of the Eustachian Tube

Eustachian tube is...

the sole means of bringing oxygen to the middle ear space, this process is called aeration. The E tube also equalizes pressure.

Stapedial Pyramid is

on the posterior wall of the middle ear, and its muscle is within it

Aditus is..

above the pyramid

Jugular Bulb

is beneath the floor of the middle ear cavity

Middle ear space are three of the tiniest bones in the body. They are the...

ossicles, and more specifically the; malleus, incus, and the stapes

Tympanic Membrane:

When a wave strikes the tympanic membrane the ossicles...

transmit the signals to the inner ear via movement of the ossicles

Malleus is the...

largest of the ossicles and provides the point of There are 3 parts of the malleus, they are: the manubrium, neck and head.