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Block 3 Muscles
| Question | Answer |
|---|---|
| Stylohyoid | Elevates and retracts the hyoid bone during swallowing Facial nerve VII |
| Posterior belly of the digastric | Depresses the mandible and elevates the hyoid bone during swallowing Facial nerve VII |
| Masseter | Elevates and protrudes the mandible, closing the jaw; deep fibers retrude Masseteric Nerve V3 |
| Temporalis | Elevates mandible, closing the jaw; posterior fibers retrude Deep Temporal Nerves (V3) |
| Lateral Pterygoid | Together: Depresses and protrudes the chin Alone/Alterately: Side to side movement of the jaw Lateral pterygoid nerve, V3 |
| Medial Pterygoid | Together: Elevate jaw to close the mandible, protrudes mandible Alone/Alternately: Protrudes side of jaw, grinding motion Medial pterygoid nerve, V3 |
| Longus Colli | Flexes the cervical vertebrae Ventral rami of cervial spinal nerves |
| Longus capitus | Flexes the head Ventral rami of cervical spinal nerves |
| Scalenus Anterior | Flexes the neck and elevates 1st rib during forced inspiration Ventral rami of cervical spinal nerves |
| Stylopharyngeus | Elevates pharynx and larynx during swallowing/speaking Glossopharyngeal (IX) |
| Superior, middle, and inferior constrictors | Constricts wall of pharynx during swallowing Pharyngeal and superior laryngeal branches of Vagus (X) via the pharyngeal plexus |
| Styloglossus | Elevates and retracts the tongue, creating a trough for swallowing Hypoglossal nerve (XII) |
| Mylohyoid | Elevates the hyoid, floor of mouth, and tongue during swallowing/speaking Mylohyoid nerve of V3 |
| Geniohyoid | Pulls hyoid bone anterior and superior, shortens floor of mouth, and widens pharynx Ventral ramus of C1 |
| Genioglossus | Depresses and protrudes the tongue Hypoglossal nerve (XII) |
| Hyoglossus | Depresses and retracts the tongue Hypoglossal nerve (XII) |
| Palatoglossus | Elevates the posterior tongue Pharyngeal plexus of Vagus (X) |
| Palatopharyngeal | Tenses palate and draws pharynx superior, middle, and anterior during swallowing Pharyngeal plexus of Vagus (X) |
| Buccinator | Pushes cheek against teeth during chewing, purses lips as in when playing an instrument Buccal branch of the Facial (VII) |
| Levator Veli Palatini | Elevates the soft palate during swallowing/yawning Pharyngeal plexus of Vagus (X) |
| Tensor Veli Palatini | Tenses the soft palate and opens auditory tube during swallowing/yawning Medial Pterygoid Nerve, V3 |
| Cricothyroid | Stretches and tenses the vocal folds External laryngeal branch of Vagus, X |
| Thyroarytenoid | Relaxes vocal ligaments Recurrent laryngeal branch of Vagus X |
| Posterior Cricoarytenoid | Abducts vocal folds Recurrent laryngeal branch of Vagus X |
| Lateral Cricoarytenoid | Adducts vocal folds Recurrent laryngeal branch of Vagus X |
| Arytenoideus Muscles | Adducts arytenoid cartilage/vocal folds Recurrent laryngeal branch of Vagus X |
| Vocalis | Relaxes posterior vocal ligament, Tenses the anterior part Recurrent laryngeal branch of Vagus X |
| Thyroepiglotticus | Adducts vocal folds Recurret laryngeal branch of Vagus X |
Created by:
aemonkie5
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