Structures of the Mouth Flashcards
Mouth
The ___________ has more posturing problems than any other feature.
Nasolabial folds - which mark the beginning of the cheeks
The LATERAL surface of the mouth is bounded by?
the base of the nose nasal sulcus
The SUPERIOR surface of the mouth is bounded by?
The junction of the lower integumentary lip and the chin
The INFERIOR surface of the mouth is bounded by?
Wider and Thicker
Mucous Membranes on one side of the midline may be __________ and _________?
Inferior and Posterior
One end of the line of closure is ofter slightly ________ and _________ to the other. The classical proportions used to locate the line of closure may not apply.
The teeth are slightly parted The mucous membranes make gentle contact - line of closure resembles a hunting bow
Normal repose of the mouth
Has a horseshoe curvature -Jaws -Teeth
Bilateral shape of the mouth
The mouth is 2 eyes wide The line of closure - -Lies halfway between the base of the nose and the top of the chin -Resembles a classical hunting bow -Moves backward to a point which is posterior to the rear margin of the nose The inferior mucous membrane -Lies slightly posterior to the upper one -Is normally wider than the upper one
Proportions of the mouth
(superior and inferior) -the visible reddish surfaces of each lip
Mucous Membrane
tiny prominence on the midline of the superior mucous membrane
Medial Lobe
Where the free margins of the mucous membrane meet. the form is created by the free margin of the upper mucous membrane
What is the Line of Closure
The line of color change at the junction of the wet and dry portion of each mucous membrane
Weather Line
Fine linear tracing running vertically on the mucous membranes -closer together laterally than medially -some people have a deep central line on the lower mucous membrane -Don’t erase these lines during cosmetic treatment -
Vertical Lines
the skin part of the lip, extending superiorly and laterally from the attached margin of the mucous membrane
Upper integumentary Lip
The small angular area between the wing of the nose and the cheek (nasolabial fold)
Nasal Sulcus
The shallow vertical groove on the midline of the upper integumentary lip between the columna nasi and the upper mucous membrane
Philtrum
The skin part of the lip receding inferiorly from the attached margin of the lower mucous membrane to the top and side of the chin
Lower Integumentary Lip
The juncture of the lower integumentary lip to the top of the chin
Labiomental sulcus
The central and two surface planes of each integumentary lip and mucous membrane bilaterally repeat the horseshoe curvature
Surface Planes
The oblique eminence, caused by muscles at each end of the line of closure - it begins on the upper integumentary lip, medial to the corner
Angulus Oris Eminence
The small groove in the angulus oris eminence at its juncture with the end of the line of closure
Angulus Oris Sulcus
The furrows of age, extending vertically on the mucous membranes and integumentary lips
Labial Sulci
margins not sharply drawn not identical in color -upper mucous membrane is less red
Colors of the mucous membranes
its vertical from the columna nasi to the upper mucous membrane bisects the base of the nose
Profile of the Upper Integumentary Lip
Greatest anterior projection is at the attached margins lower lip is more posterior
Profile of the Mucous Membrane
posterior to the rear margin of the nose
Profile of The Line of Closure
Recedes inferiorly from the attached margin of the lower mucous membrane to the top of the chin
Profile of the Lower Integumentary Lip
The cavity in which mastication takes place. The beginning of the alimentary canal
Definition of the mouth.
Projection of the jaw, or jaws
Prognathism
Maxillary - The superior jaw (maxilla) protrudes Mandibular - The inferior jaw (mandible) protrudes Dental (buck teeth) - oblique insertion of the teeth; front teeth protrude Alveolar - sockets of the teeth are inclined
Types of Prognathism
