A&P Lab 7 Muscle Origins/Insertions
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24 terms
Terms | Definitions |
|---|---|
 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 |
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