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muscles head/neck
| Question | Answer |
|---|---|
| Platysma (located front of the neck on either side of chin) | O: over deltoid and pectoralis major muscles I: mandible A: Pouting face / depressing mandible |
| Sternothyroid ( front of neck closer to midline) | O: mandibrium of sternum I: thyroid cartilage A: depresses thyroid cartilage |
| Thyrohyoid( under sternothyroid) | O: thyroid cartilage I: greater horn of Hyoid bone A: elevates thyroid cartilage |
| Omohyoid (beside sternohyoid over top of Sternothyroid) | O:superior border of scapula and superior transverse ligament I: body of Hyoid bone A: depresses Hyoid bone |
| Sternohyoid (on top of Sternothyroid) | O: medial end of clavicaland mandibrium of sternum I: body of hyoid bone A: depresses hyoid bone |
| Mylohyoid (under mandible) | O: inner surface of mandible I: body of hyoid bone A: elevates hyoid and floor of mouth and depresses mandible |
| Genohyoid (running from chin to middle of neck through midline) | O: inner surface of mandible I: body of hyoid bone A: elevates hyoid draws hyoid and tongue anteriorly |
| Digastric (along jawline) (chin to middle of neck) | O: anterior belly from inner side of inferior border of mandible. posterior belly I: body of hyoid bone A: elevates hyoid and opens mouth |
| Stylohyoid (jawline) | O: styloid process of temporal bone I: body of hyoid bone A: elevates hyoid bone draws it posteriorly |
| longissimus capitis (back of neck away from midline) | O: articular process of T1-T4 I: mastoid process of temporal bone A: extend head and vertebral column, laterally flex and rotate head |
| Spinalis capitis (back of neck on midline) | O: arises with semispinalis I: occipital bone A: extends head and Vertebral column |
| Semispinalis capitis (triangular shape at back of neck) | O: articular process of C4-C6 and transverse process of C7-T7 I: occipital bone between superior and inferior nuchal lines A:extend head and vertabral collum rotate head to side of opposite contracting muscle |
| Splenius capitus (back of neck on midline) | O:ligamentum nuchae of spinous process of C7-T4 I: occipital bone and mastoid process of temporal bone A: extend head and vertebral collum |
| Sternocleidomastoid | O: sternal head, manubrium of sternum. clavicular head, medial third of clavical. I: mastoid process of temporal bone and lateral half of superior nuchal line A: laterally rotate and flex head |
| anterior scalenes | O: transverse process of C3-C6 I: first rib A: laterally flex head to same side, rotate head to opposite side, elevate ribs, anteriorly flex head and neck |
| middle scalenes | O: transverse process of C2-C7 I: first rib A: laterally flex head to same side, rotate head to opposite side, elevate ribs, anteriorly flex head and neck |
| posterior scalenes | O:transversse process of C6-C7 I: second rib A: laterally flex head to same side, rotate head to opposite side, elevate ribs, anteriorly flex head and neck |
| Masseter | O: zigomatic arch I: angle and ramus or mandible A: elevate mandible |
| Temporalis | O: temporal fossa and facia I: coronoid process and anterior edge of ramus of mandible A:elevate and retract mandible |
| occipitalfrontalis | O: galea aponeurotica I: frontalis, on top of eyebrows. occipitalis, superior nuchal line A: frontalis, raise eyebrows. occipitalis, anchor and retract galea |
| medial pterygoids | O: tuberosity of the maxilla and plate of the sphenoid bone I: medial surface of ramus of mandible A: elevate and protract the mandible and laterally deveate the mandible |
| lateral pterygoids | O: superior head, temporal surface and crest of greater wing of sphenoid bone I: articular disk ad capsule of temporomandibular joint A: laterally deviate mandible and protract mandible |
| Longus capitis | O: transverse process of C3-C6 I: inferior surface of occiput A: laterally flex head and neck to the same side, rotate the head and neck to the same side flex the head and neck |
| Longus Coli | O: body of C5-T3 and transverse process of C3-C5 I: anterior arch of the atlas, bodies of the axis C3-C4 and transvserse process of C5-C6 A: laterally flex head and neck to the same side, rotate the head and neck to the same side flex the head and neck |
| Buccinator | A: moms irritated face |
| Depressor Anguli Oris | A: pouty face |
| Depressor labii inferioris | A: ouch thats gotta hurt face |
| levator anguli oris | A: roblox smile |
| levator labii superioris | A: snarle |
| mentalis | A: pouty face |
| oblicular oris | A: blowing bubbles |
| Risorius | A: white man smile |
| Zigomaticus major | A: smile with teeth |
| Zigomaticus minor | A: uncomfortable smile with no teeth |
| Levator labii superioris alaeque nasi | A: nose scrunch |
| Nasalis | A: flare nostrils |
| Procerus | A: angry eyebrows |
| corrugator supercilii | A: angry eyebrows |
| orbicularis oculi | A: close and open eyes |
| Auricular (posterior, superior, anterior) | A: move ears and scalp |
Created by:
user-2037134