Shared Flashcard Set

Details

Muscles
Muscles of face, neck, mastication, tongue
35
Anatomy
Undergraduate 3
10/06/2007

Additional Anatomy Flashcards

 


 

Cards

Term
Mentalis Function
Definition
1. Raises and protrudes lower lip.
2. Expresses doubt or disdain.
3. Assists in drinking.
4. Raises chin.
Term
Buccinator Function
Definition
1. Mastication pulls angle of mouth laterally and shortens cheek both vertically and horizontally.
2. Assists in keeping food pushed back on occlusal surfaces.
3. Whistling, chewing, trumpet muscle.
Term
Orbicularis Oris Function
Definition
1. Pressing together (closes and protrudes lips.
2. Tightening and thinning (pursing lips)
3. Rolling inward between the teeth (grimacing)
4. Thrusting outward (pouting and kissing)
Term
Depressor Anguli Oris Function
Definition
Depresses angle of mouth (sadness)
Term
Depressor Labii Inferioris
Definition
1. Depresses lower lip.
2. Works with mentalis to pull down lip.
Term
Risorius Function
Definition
Widens mouth when person is smiling widely. (grimace)
Term
Levator Anguli Oris Function
Definition
Elevates the angle of the mouth (smiling)
Term
Zygomaticus Major
Definition
Elevates the angle of the upper lip and pulls it laterally when smiling.
Term
Zygomaticus Minor Function
Definition
Elevates the upper lip, assists in smiling.
Term
Frontal portion of Epicranius Function
Definition
Raising the eye brow (surprise)
Term
Occipital portion of Epicranius Function
Definition
Draws scalp backward
Term
Palprebral Function
Definition
Light closure of eyelid, winking.
Term
Orbital Function
Definition
Closes eye forcefully.
Term
Corrugator Function
Definition
Draws skin of forehead medially downward above. Produces vertical wrinkles, frowning.
Term
Procerus Function
Definition
Draws down medial angle of eyebrows, transverse wrinkles.
Term
Levator Labii Superioris Function
Definition
Elevates upper lip.
Term
Levator Labii Superioris Alaeque Nasi Function
Definition
Elevates upper lip (dilating nostrils in a sneer)
Term
Transverse and Alar of Nasalis Function
Definition
Contracts and dilates nasal openings, widening and flattening of nose.
Term
What branch do the muscles of facial expression arise from?
Definition
Branchial arch #2 (Hyoid)
Term
What nerve innervates the muscles of facial expression?
Definition
Cranial Nerve #7 Facial Nerve
Term
Origin and Insertion of Mentalis
Definition
O: Mandible near midline.
I: In the skin tissue of chin (orbicularis oris)
Term
Origin and Insertion of Buccinator
Definition
O1: Alveolar processes of maxilla and mandible
O2: Pterygomandibular raphe
I: Angle of the mouth
Term
Origin and Insertion of Orbicularis Oris
Definition
O: Fascia surrounding mouth.
I: Angle of mouth
Term
Origin and Insertion of Depressor Anguli Oris
Definition
O: Lower border of mandible, external oblique line.
I: Angle of mouth.
Term
Origin and Insertion of Depressor Anguli Oris
Definition
O: Lower border of mandible, external oblique line.
I: Angle of mouth.
Term
Origin and Insertion of Depressor labii inferioris
Definition
O: Lower border of the mandible (external oblique line of mandible)
I: Medial and superior into the sking of the lower lip.
Term
Origin and Insertion of Risorius
Definition
O: Fascia superficial to the masseter (Near parotid gland)
-Opposite of Max. 1st molar (salivary)
I: Skin tissue at the angle of the mouth.
Term
Origin and Insertion of Levatore Anguli Oris
Definition
O: Canine fossa below infraorbital foramen.
I: Angle of mouth.
Term
Origin and Insertion of Levatore Anguli Oris
Definition
O: Canine fossa below infraorbital foramen.
I: Angle of mouth.
Term
Origin and Insertion of Zygomaticus Major
Definition
O: Zygomatic bone, lateral to the zygomaticus minor.
I: Angle of mouth
Term
Origin and Insertion of Zygomaticus Minor
Definition
O: Zygomatic bone
I: Angle of mout, mingling with orbicularis oris, inserts lateral to levator labii superioris.
Term
Origin and Insertion of Frontal portion of Epicranius
Definition
O: Galea aponeurotica
I: Skin tissue of the eyebrow and root of the nose.
Term
Origin and Insertion of the occipital portion of the epicranius
Definition
O: Mastoid process of temporal bone and occipital.
I: Galea aponeurotica.
Term
Origin and Insertion of Levator Labii Superioris
Definition
O: Infraorbital rim of the maxilla.
I: Skin tissue of the upper lip.
Term
Origin and Insertion of Levator Labii Superioris Alaeque Nasi
Definition
O: Frontal process of the maxilla.
I: Ala of nose and upper lip.
Supporting users have an ad free experience!