Innervation of the lower third of the sternocleidomastoid muscle by the ansa cervicalis through the C1 descendens hypoglossal branch: a previously unreported anatomical variant.
We describe a previously unreported anatomical variant (found during a routine neck dissection) in which the lower third of the sternocleidomastoid was innervated by the C1 branch of the ansa cervicalis (descendens hypoglossi).
Department of Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth PO6 3LY, United Kingdom. Electronic address: jnstj.blythe@btopenworld.com.
J N St J
JN
Blythe
Department of Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth PO6 3LY, United Kingdom.
J
J
Matharu
Department of Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth PO6 3LY, United Kingdom.
W J
WJ
Reuther
Department of Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Cosham, Portsmouth PO6 3LY, United Kingdom.
P A
PA
Brennan
D000055:Accessory Nerve / Q000033:anatomy & histology*; D000368:Aged; D063405:Anatomic Variation; D002294:Carcinoma, Squamous Cell / Q000601:surgery; D002572:Cervical Plexus / Q000033:anatomy & histology; D006801:Humans; D007002:Hypoglossal Nerve / Q000033:anatomy & histology*; D008297:Male; D037981:Neck Dissection; D009334:Neck Muscles / Q000294:innervation*; D014062:Tongue Neoplasms / Q000601:surgery
Ansa cervicalis; Descendens hypoglossi; Neck dissection; Sternocleidomastoid muscle; Sternomastoid muscle