EAR STRUCTURE DESCRIPTION / FUNCTION 1 external, middle, internal uses air to collect and channel sound waves, auricle (pinna), external auditory canal, tympanic membrane air filled cavity, uses bony system to amplify sound vibrations, lined with epithelium and contains 3 auditory ossicles 3.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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2. Fill in the following chart and label the diagrams below.
EAR STRUCTURE
DESCRIPTION / FUNCTION
1
external, middle, internal
uses air to collect and channel sound waves, auricle (pinna), external
auditory canal, tympanic membrane
air filled cavity, uses bony system to amplify sound vibrations, lined with
epithelium and contains 3 auditory ossicles
3
generates action potentials to transmit sound and balance information to
the brain, two main divisions (outer bony labyrinth that enclosed an inner
membranous labryrinth)
4
flap of elastic cartilage covered by skin and containing ceruminous glands
6
in temporal bone leading from meatus to tympanic membrane
separates outer ear from cavity of middle ear
8
stapes (stirrup), inus (anvil), malleus (hammer)
connects middle ear with nasopharynx, consists of bone and hyaline
cartilage, opens to equalize pressure of each side of tympanic membrane
allowing it to vibrate freely
9.
middle part of bony labyrinth of inner ear, membranous part within
consists of two sacs (utricle and saccule) involved in static equilibrium
10
11
located anterior to vestibule, contains receptor cells for hearing
above the vestibule, end in swollen enlargement call ampulla which is
involved in dynamic equilibrium
12
Transcribed Image Text:2. Fill in the following chart and label the diagrams below. EAR STRUCTURE DESCRIPTION / FUNCTION 1 external, middle, internal uses air to collect and channel sound waves, auricle (pinna), external auditory canal, tympanic membrane air filled cavity, uses bony system to amplify sound vibrations, lined with epithelium and contains 3 auditory ossicles 3 generates action potentials to transmit sound and balance information to the brain, two main divisions (outer bony labyrinth that enclosed an inner membranous labryrinth) 4 flap of elastic cartilage covered by skin and containing ceruminous glands 6 in temporal bone leading from meatus to tympanic membrane separates outer ear from cavity of middle ear 8 stapes (stirrup), inus (anvil), malleus (hammer) connects middle ear with nasopharynx, consists of bone and hyaline cartilage, opens to equalize pressure of each side of tympanic membrane allowing it to vibrate freely 9. middle part of bony labyrinth of inner ear, membranous part within consists of two sacs (utricle and saccule) involved in static equilibrium 10 11 located anterior to vestibule, contains receptor cells for hearing above the vestibule, end in swollen enlargement call ampulla which is involved in dynamic equilibrium 12
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