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Parts and Functions of the Ear
What is sound? Sound is the vibration of air molecules. Sound waves refer to the “ripples” created as the sound vibrations move out from the source.
The hearing mechanism Your fascinating ear!
Regions of the ear REGIONS OF THE EAR Regions of the ear
THE OUTER EAR!
a. The pinna The function of the pinna is to capture sound waves.
g. The auditory canal The auditory canal has two functions:
1. To send sound waves to the middle ear.2. To keep the ear clean of debris. a) cilia: hair b) cerumen: ear wax
f. The Tympanic Membrane
The tympanic membrane has two functions: 1. Seals off the middle ear.2. Vibrates the ossicles (ear bones).
THE MIDDLE EAR!
The ossicles the three smallest bones in the bodyh. Malleus (hammer) i. Incus (anvil) j. Stapes (stirrup) (MIS)
Ligaments connect the malleus directly to the back of the tympanic membrane.The stapes taps the cochlea to transmit sound vibrations to the inner ear.
e. Eustachian tube Has two functions:Equalizes air pressure in the middle ear Drains the middle ear
THE INNER EAR!
b. semicircular canal c. cochleaThe semicircular canals maintain balance. The cochlea changes sound vibrations to nerve impulses.
The cochlea is spiral, hollow chamber of bone filled with liquid and thousands of nerve endings.
These nerve endings are triggered by vibrations sent through the liquid-filled cochlea. As the nerves exit the cochlea they combine together to become the auditory nerve.
d. The auditory nerve The auditory nerve is a collection of nerves sending nerve impulses to the brain.
BASIC EAR ANATOMY OR WHATS IN AN EAR. BASIC EAR ANATOMY EXPECTED OUTCOMES EXPECTED OUTCOMES TO UNDERSTAND THE HEARING MECHANISM TO BE ABLE TO IDENTIFY.
Hearing and Equilibrium
Have you heard the news??? It’s ear time!!. Trivia Question What are the smallest bones in the body? OssiclesOssicles These bones are fully developed.
The Ear Review.
Your ears are sense organs that respond to the stimulus of sound. The sound waves are picked up from the surrounding air, and they are turned into.
Sensory System Ear: Sound & Balance.
3.04 Functions and disorders of the ear
Miss Martini’s 7th Grade Science Class
9.6 Hearing and Equilibrium
The Human Ear. Main Parts of the Ear Outer Ear Middle Ear Inner Ear.
Chapter 8 Special Senses: Hearing & Equilibrium
The Special Senses Lesson 2:
HEARING AND BALANCE 1. The EAR is really TWO Sense Organs in ONE. It not only detects Sound Waves, it also senses the Position of the HEAD,
Collects sound waves, channels them into ear canal Rich in cartilage Continues to grow throughout life!
SS3 LESSON NOTE FOR WK4 ORGAN OF HEARING AND BALANCE.
Functions of Ear.
Ear anatomy Overview: The ear converts sound vibrations into a neural signal that gets sent to the brain. Vibrations enter the ear and are amplified by.
Hearing What’s that you say? Anatomy is your favorite class? Not surprising.
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