1. The auricle, or pinna, consists of cartilage, with the exception of the fleshy lobule, that is covered with skin. What is the function of the auricle? 2. The external auditory canal (external auditory meatus) is a tunnel through the bone that terminates at the tympanic membrane. The canal is lined with modified sweat glands called glands that secrete cerumen, (ear wax) a waxy substance. What is the function of ear wax? 3. The tympanic membrane is a thin sheet of epithelium and connective tissue that separates the outer and middle ear regions. C. Middle Ear is a hollow, air-filled, mucous membrane-lined chamber found within the temporal bone. The tympanic membrane forms the lateral boundary and the wall of the inner ear defines the medial boundary. The following structural and functional features are associated with the middle ear: 1. The pharyngotympanic tube (eustachian tube) connects the with the ear. The tube equalizes air pressure on both sides of the 2. The auditory ossicles are three tiny bones, the found within the middle ear. What and is the function of the ossicles? 3. The following two tiny skeletal muscles attach to the ossicles: tensor tympani and stapedius muscle. What is the function of these muscles? D. Inner Ear. The inner ear is a cavity within the temporal bone that is subdivided into three regions: the and
1. The auricle, or pinna, consists of cartilage, with the exception of the fleshy lobule, that is covered with skin. What is the function of the auricle? 2. The external auditory canal (external auditory meatus) is a tunnel through the bone that terminates at the tympanic membrane. The canal is lined with modified sweat glands called glands that secrete cerumen, (ear wax) a waxy substance. What is the function of ear wax? 3. The tympanic membrane is a thin sheet of epithelium and connective tissue that separates the outer and middle ear regions. C. Middle Ear is a hollow, air-filled, mucous membrane-lined chamber found within the temporal bone. The tympanic membrane forms the lateral boundary and the wall of the inner ear defines the medial boundary. The following structural and functional features are associated with the middle ear: 1. The pharyngotympanic tube (eustachian tube) connects the with the ear. The tube equalizes air pressure on both sides of the 2. The auditory ossicles are three tiny bones, the found within the middle ear. What and is the function of the ossicles? 3. The following two tiny skeletal muscles attach to the ossicles: tensor tympani and stapedius muscle. What is the function of these muscles? D. Inner Ear. The inner ear is a cavity within the temporal bone that is subdivided into three regions: the and
Chapter14: Seeing And Hearing
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Transcribed Image Text:1. The auricle, or pinna, consists of
cartilage, with the
exception of the fleshy lobule, that is covered with skin. What is the function
of the auricle?
2. The external auditory canal (external auditory meatus) is a tunnel through the
bone that terminates at the tympanic membrane. The
canal is lined with modified sweat glands called
glands
that secrete cerumen, (ear wax) a waxy substance. What is the function of
ear wax?
3. The tympanic membrane is a thin sheet of epithelium and connective tissue
that separates the outer and middle ear regions.
C. Middle Ear is a hollow, air-filled, mucous membrane-lined chamber found
within the temporal bone. The tympanic membrane forms the lateral boundary
and the wall of the inner ear defines the medial boundary. The following
structural and functional features are associated with the middle ear:
1. The pharyngotympanic tube (eustachian tube) connects the
with the
ear. The tube equalizes air
pressure on both sides of the
2. The auditory ossicles are three tiny bones, the
found within the middle ear. What
and
is the function of the ossicles?
3. The following two tiny skeletal muscles attach to the ossicles: tensor
tympani and stapedius muscle. What is the function of these muscles?
D. Inner Ear. The inner ear is a cavity within the temporal bone that is subdivided
into three regions: the
and
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