Muscular System Group 1 Quiz Flashcards
What is the origin of the Temporalis?
Temporal bone
What is the insertion of the Temporalis?
Mandible
What is the function of the Temporalis?
Raises the jaw (mandible)
What is the origin of the Masseter?
Zygomatic arch
What is the insertion of the Masseter?
Mandible
What is the function of the Masseter?
Raises the jaw (controls lowering speeds)
What is the origin of the Orbicularis Oculi?
Maxillary and frontal bones (connective tissue)
What is the insertion of the Orbicularis Oculi?
Skin around the eye
What is the function of the Orbicularis Oculi?
Closes the eye
What is the origin of the Platysma?
Upper chest fascia
What is the insertion of the Platysma?
Lower mandible
What is the function of the Platysma?
Draws down the mouth
What is the origin of the Sternocleidomastoid?
Sternum and clavicle
What is the insertion of the Sternocleidomastoid?
Mastoid process of temporal bone
What is the function of the Sternocleidomastoid muscle?
Pull head forward to chest and pull head to side
What is the origin of the Orbicularis oris?
Muscles near mouth
What is the insertion of the Orbicularis oris?
Skin of lip
What is the function of the Orbicularis oris?
Closes and protrudes lips
What is the origin of the Epicranius (frontalis and occipitalis?
Occipital bone
What is the insertion of the Epicranius?
Skin and muscles above eye
What is the function of the Epicranius?
Raises the eyebrows