Anatomy lab: Muscles of the neck and tongue
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30 terms
Terms | Definitions |
|---|---|
 Genioglossus | Origin: mandible. Insertion: tongue, hyoid. Action: retracts and protrudes tongue. |
| Mandible | What is the origin of the genioglossus? |
| Tongue, hyoid | What is the insertion of the genioglossus |
| Retracts and protrudes tongue | What is the action of the genioglossus? |
| Genioglossus | Picture 8 |
| Sternocleidomastoid | Origin: sternum, clavicle. Insertion: Mastoid process of temporal bone. Action: Unilateral: turns head to opposite side. Bilateral: flexes neck |
| Sternum, clavicle | What is the origin of the sternocleidomastoid? |
| Mastoid process of temporal bone | What is the insertion of the sternocleidomastoid? |
| Unilateral: turns head to opposite side. Bilateral: flexes neck | What is the action of the sternocleidomastoid? |
| Sternocleidomastoid | Picture 2, just under the pterygoid |
| Sternohyoid | Origin: sternum. Insertion: hyoid. Action: Depresses larynx and hyoid during speaking and swallowing |
| Sternum | What is the origin of the sternohyoid |
| Hyoid | What is the insertion of the Sternohyoid? |
| Depresses larynx and hyoid | What is the action of the sternohyoid? |
| Sternohyoid | Picture 9, number 5 |
| Sternothyroid | Origin: sternum. Insertion: thyroid cartilage. Action: Depresses larynx and hyoid during speaking and swallowing |
| sternum | What is the origin on the sternothyroid? |
| thyroid cartilage | What is the insertion of the sternothyroid? |
| Depresses larynx and hyoid | What is the action of the sternothyroid? |
| Sternothyroid | Picture 10, bottom right line (not little baby line) |
| Mylohyoid | Origin: mandible. Insertion: hyoid. Action: Elevates hyoid, depresses mandible |
| Mandible | What is the origin of the mylohyoid? |
| Hyoid | What is the insertion of the mylohyoid? |
| Elevates hyoid, depresses mandible | What is the action of the mylohyoid? |
| mylohyoid | Picture 10, 3rd line from the top left |
| Geniohyoid | Origin: mandible. Insertion: hyoid. Action: elevates and protrude hyoid (widens pharynx during swallowing) |
| Mandible | What is the origin of the geniohyoid? |
| Hyoid | What is the insertion of the geniohyoid? |
| Elevates and protrudes hyoid | What is the action of the geniohyoid? |
| Geniohyoid | Picture 11 and picture 12 |
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