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Unit 4 - Tongue
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Dorsum
surface of the tongue
Major regions of the tongue
tip
blade
front
back
Median sulcus
divides the dorsum in half
running from front to back and ends at foramen cecum
Sulci terminalis (2)
Running diagnoally from foramen cecum
Antero-lateral direction
Separate tongue into anterior 2/3 and posterior 1/3
Papillae
Taste buds
Located in the posterior third
Lingual frenum
anchors the tongue to the floor of the mouth
Superior longitudinal muscle
Unpaired, near the surface
Runs back to front
Shorten the tongue and slightly raise the tongue tip
Inferior longitudinal
unpaired, under surface of the tongue from back to front
can shorten the tongue and slightly lower the tongue tip
Transverse
From medial sulcus to lateral edges if the tongue
Narrows and elongates the tongue
Vertical
Originate on surface and course downward toward under surface
Contraction results in flattening of the tongue
Author
jadnebalasca
ID
184414
Card Set
Unit 4 - Tongue
Description
A&P of speech and ear mech
Updated
11/19/2012, 5:17:35 PM
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