Musculos Cabeza Flashcards
1
Q
Frontalis
A
O = galea aponeurotica I = skin of eyebrows & root of nose A = raises eyebrows; wrinkles forehead skin horizontally
2
Q
Occipitalis
A
O = occipital bone I = galea aponeurotica A = fixes aponeurosis; pulls scalp back posteriorly
3
Q
Orbicularis oculi
A
O = frontal & maxillary bones and ligaments around orbit I = tissue of eyelid A = winking, blinking, squinting, "crow's feet" of aging
4
Q
Zygomaticus
A
O = Zygomatic bone I = skin & muscle at corner of mouth A = smiling muscle
5
Q
Orbicularis oris
A
O = indirect from maxilla & mandible I = muscle & skin at angles of mouth A = "kissing" muscle,
6
Q
Buccinator
A
O = alveolar region of maxilla & mandible I = orbicularis oris A = whistling, blowing, sucking, holds food between teeth
7
Q
Masseter
A
O = zygomatic arch I = angle & ramus of mandible A = prime mover of jaw closure; elevates mandible
8
Q
Temporalis
A
O = temporal fossa I = coronoid process of mandible via tendon that passes beneath the zygomatic arch. A = synergist muscle for jaw closure
9
Q
Tongue movement muscles (3)
A
Genioglossus
Styloglossus
Hyoglossus
10
Q
Genioglossus
A
O = internal surface of mandible near symphysis I = inferior aspect of tongue & body of hyoid bone A = protrudes tongue, can depress tongue with other muscles
11
Q
Styloglossus
A
O = styloid process of temporal bone I = lateral inferior aspect of tongue A = retracts & elevates tongue
12
Q
Hyoglossus
A
O = hyoid bone I = side of the tongue A = retracts and pulls down side of tongue
13
Q
Sternocleidomastoid
A
O = manubrium of sternum & medial portion of clavicle. I = mastoid process of temporal bone A = head flexion (prime mover)
14
Q
Platisma
A
O = fascia of chest (pectoral muscle) I = lower margin of mandible and skin-muscle at corner of mouth A = depresses mandible, pulls lower lip back and down
15
Q
Depressor anguli oris
A
O = body of mandible I = skin-muscle at angle of mouth A = draws corner of mouth laterally & downward
