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Anterior Neck
Nerve, blood supply, origin, insertion
Muscle | Origin | Insertion | Blood Supply | Innervation |
---|---|---|---|---|
Mylohyoid | Mylohyoid line of mandible | Median raphe from symphysis menti to hyoid bone, front of body of hyoid | Sublingual br of lingua a; mylohyoid br of inferior alveolar a; submental br of facial a | Mylohoid br of inferior alveolar n |
Geniohyoid | Inferior mental spine on back of symphysis menti | Anterior surface of body of hyoid bone | Sublingual br of lingual | 1st cervical spinal n via hypoglossal n |
Sternohyoid | Upper ant aspect of manubrium; posterior sternoclavicularlig; post surface of medial end of clavicle | Inferior body of body of hyoid | Superior thyroid a | Ansa cervicalis from C1-C3 |
Sternothyroid | Post surface of manubrium; Posterior edge of cartilage of 2nd rib | Oblique line of lamina of styloid cartilage | Br from superior thyroid & lingual | Br from ansa cervicalis C1-C3 |
Thyrohoid | Oblique line of lamina of thyroid cartilage | Lower border of greater cornu and adjacent part of body of hyoid | Br from superior thyroid & lingual | 1st cervical spinal n via hypoglossal n |
Omohyoid | Superior ridge of scapula immediately medial to suprascapular notch | Lower border of body of hyoid bone lateral to sternohyoid | Superior thyroid & lingual | Sup belly - Superior ramus of ansa cevicalis from C1 Inf belly - Ansa cervicalis from C1-C3 |
Sternocleidomastoid | Sternal end: Upper ant surface of manubrium Clavicular - Superior surface of middle 1/3 of clavicle | lateral surface of mastoid process; Aponeurosis to ant 1/2 of sup nuchal line | Upper - Br of occipital and post auricular Mid - Superior thyroid a Lower - suprascapular | Spinal part of accessory n; Ventral rami of C2-C4 |
Digastric | Mastoid notch on temporal bone | digastric fovea on base of mandible near midline | Occipital, post auricular, & submental br of facial a | Post belly - facial n Ant belly - mylohyoid br of inferior alveolar n |
Stylohyoid | Posterior surface of styloid process near base | Body of hyoid near junction with greater cornu | Br of post auricular, occipital, & facial a | Stylohoid br of facial n |