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24 terms

A&P Lab 7 Muscle Origins/Insertions

STUDY
PLAY
masseter
O: zygomatic arch and maxilla
I: angle and ramus of mandible
temporalis
O: temporal fossa
I: coronoid process of mandible
digastric
O: lower margin of mandible; mastoid process of temporal bone
I: hyoid bone
stylohyoid
O: styloid process of temporal bone
I: hyoid bone
mylohyoid
O: medial surface of mandible
I: hyoid bone
sternohyoid
O: manubrium, medial end of clavicle
I: lower margin of hyoid bone
sternothyroid
O: posterior surface of manubrium
I: thyroid cartilage
thyrohyoid
O: thyroid cartilage
I: hyoid bone
pharyngeal constrictor muscles
O: mandible; sphenoid; hyoid
I: posterior pharynx
sternocleidomastoid
O: manubrium; medial clavicle
I: mastoid process of temporal bone; superior nunchal line of occipital bone
trapezius
O: occipital bone; ligamentum nunchae; spines of C7-T12
I: acromion, spine of scapula; lateral 1/3 of clavicle
levator scapulae ventralis
O: transverse processes C1-C4
I: medial border of scapula
deltoid
O: acromion, spine of scapula; lateral 1/3 of clavicle
I: deltoid tuberosity of humerus
triceps brachii, long head
O: infraglenoid tubercle of scapula
I: olecranon process of ulna
triceps brachii, lateral head
O: posterior shaft of humerus
I: olecranon process of ulna
extensor digitorum
O: common extensor tendon
I: distal phalanges 2-5
extensor carpi ulnaris
O: common extensor tendon
I: base of medial # metacarpal
medial pterygoid
O: pterygoid process of the sphenoid bone
I: medial surface of mandible near angle
lateral pterygoid
O: pterygoid porcess of the sphenoid bone
I: mandibular condyle
buccinator
O: maxilla and mandible
I: orbicularis oris
genioglossus
O: internal surface of mandibular symphysis
I: inferior tongue; body of hyoid
hyoglossus
O: hyoid bone
I: inferolateral tongue
styloglossus
O: styloid process of the temporal bone
I: inferolateral tongue
geniohyoid
O: mandibular symphysis
I: hyoid bone