Craniomandibular Actions Flashcards
1
Q
Elevates mandible, (closes mouth)
A
Masseter
Temporalis
Lateral Pterygoid, (superior portion)
Medial Pterygoid
2
Q
Opens mouth
A
Lateral Pterygoid-inferior portion (unilateral fibers) Anterior Digastric (on fixed hyoid) Posterior Digastric (on fixed hyoid)
3
Q
Elevates Hyoid
A
Posterior Digastric (on fixed mandible) Anterior Digastric (on fixed mandible) Geniohyoid Mylohyoid Stylohyoid
4
Q
Depresses Hyoid
A
Omohyoid
Sternohyoid
Sternothyroid
Thyrohyoid
5
Q
Active during coughing/swallowing
A
Anterior Digastric
6
Q
Stabilizes hyoid
A
Omohyoid
Sternohyoid
7
Q
Depresses Larnyx
A
Sternothyroid
8
Q
Elevates Larnyx
A
Thyrohyoid
9
Q
Retrusion
A
Temporalis (bilateral posterior fibers)
10
Q
Mandible Deviation
A
Temporalis (Unilateral: ipsilateral mandible deviation) Medial Pterygoid (Unilateral, contralateral deviation)
11
Q
Protrusion
A
Lateral Pterygoid, Inferior Portion (bilateral fibers) Medial Pterygoid (Bilateral fibers)
12
Q
Stabilizes Tongue
A
Mylohyoid
