The Axial Muscular System OIA Flashcards
What is the insertion of the Temporalis?
Coronoid process of the mandible
What is the insertion of the Master?
Lateral surface of the mandibular ramus/angle
What is the insertion of the Rectus abdominis?
Costal cartilage, xiphoid process
What is the insertion of the Pterygoid [Medial; Lateral]?
Medial surface of the mandibular ramus
What is the insertion of the Sternocleidomastoid [Sternal; Clavicular]?
Mastoid process
What is the origin of the Temporalis?
Frontal, temporal, parietal
What is the origin of the Sternocleidomastoid [Sternal; Clavicular]?
Sternum, clavicle
What is the origin of the Pterygoid [Medial; Lateral]?
Pterygoid plates of the sphenoid
What is the origin of the Masseter?
Zygomatic arch
What is the origin of the Rectus abdominis?
Pubic symphysis
What is the origin of the suprahyoid
Mandible, tongue, the floor of the braincase
What is the origin of the infrahyoid
Sternum, clavicle, larynx
Insertion of suprahyoid
Hyoid
Insertion of the infrahyoid
Hyoid
What is the action of the Temporalis?
Elevates and retracts mandible
What is the action of the Sternocleidomastoid [Sternal; Clavicular]?
Rotate head, flex neck
What is the action of the Pterygoid [Medial; Lateral]?
Elevate, protract, translate mandible
What is the action of the Masseter?
Elevate and protract mandible
What is the action of the Rectus abdominis?
depress ribs, flex the vertebral column
What is the action of the suprahyoid
elevate hyoid and depress mandible
What is the action of the infrahyoid
depress hyoid and mandible
What are the muscles of mastication?
Pterygoids, Temporalis, Masseter, Hyoids
Action of Corrugator supercilii
Wrinkle brow
Action of Nasalis
wrinkle the bridge of the nose
Action of Orbicularis oculi
closes eye
Action of Orbicularis oris
closes mouth
Action of Buccinator
Compress cheeks
Action of levator labii superioris
elevates the upper lip
Action of Depressor labii inferioris
depresses lower lip
Action of Zygomaticus
elevates the corner of the mouth
Action of Platysma
Compresses neck/throat, depresses the mandible