(Q2) Mouth Flashcards
Superior integumentary lip
Margins:
superior - base of nose
lateral - nasolabial fold
inferior - superior mucous membrane
Remember: integument means “skin”
Philtrum
shallow vertical groove at the midline of the superior integumentary lip
inferior to the columna nasi and superior to the superior mucous membrane
slightly wider at the base than the top
Remember: means “love potion”
Hunter’s Bow
The curved line with a dip in the center
Superior border of the superior mucous membrane
Superior & Inferior Mucous Membranes
Mucous membranes are the red portion
of the lips
A.K.A. - vermillion lips Vermillion means “red”
Where the integumentary lip transitions to the mucous membrane is called the vermillion border
The superior mucous membrane lip is slightly more lateral than the inferior mucous membrane lip at the ends of the line of lip closure
Line of Lip Closure
Part of the Superior & Inferior Mucous Membranes
Where the two mucous membrane lips
meet
May also have the shape of a hunter’s
bow
Medial Lobe of the Lips
Part of the Superior & Inferior Mucous Membranes
small, dipping fullness of the upper lip at the midline
Because of this structure, the superior mucous membrane lip is slightly more anterior than the inferior mucous
membrane
Vertical lines
Part of the Superior & Inferior Mucous Membranes
very fine lines that run vertically in the mucous membrane lips
with age they may extend into the integumentary lips when the become Labial sulci (furrows of age)
Inferior Integumentary Lip
The “soul patch” area
Margins:
Superior - inferior mucous membrane
Lateral - lateral corner of the mouth
Inferior - labiomental sulcus
Labiomental sulcus
labio = lip
mental = chin
The connection point of the inferior integumentary lip and the chin
This sulcus may range from a rather subtle depression to a deep groove
Nasolabial Fold
Where the cheek meets the superior integumentary lip
Cheek protrudes more and causes the skin to fold
These are the lateral borders of the superior integumentary lip
Angulus Oris Eminence
Protrusion caused by the insertion of several muscles at the corner of the mouth
Angulus Oris Sulcus
Small depression where the angulus oris eminence meets the line of lip closure
Bi-lateral Curvature
When viewed from the inferior angle
Mouth should curve back in a “U”
shape
Superior mucous membrane should be
the most anterior
Prognathism
The projection of the jaw
gnatho is Latin for “jaw”
Maxillary prognathism
When the maxillae project more anteriorly than normal
Creates a gap between the teeth with lower teeth further posterior
