Muscles of Neck Flashcards
Name muscle A.
Mylohyoid muscle
Name muscle B.
Sternohyoid
Name muscle C.
Omohyoid
Name muscle D.
Sternothyroid
Name muscle E.
Sternocleidomastoid
Name muscle F.
Thyrohyoid
Name muscle A.
Stylohyoid
Name muscle B.
Mylohyoid
Name muscle C.
Anterior belly of digastric muscle.
Name muscle D.
Thyrohyoid
Name muscle E.
Anterior scalene
Name muscle F.
Middle scalene
Name muscle G.
Posterior scalene
Name muscle H.
Sternocleidomastoid
Name muscle I.
Posterior belly of digastric muscle.
What is the origin of the mylohyoid muscle?
Mylohyoid line of mandible
What is the insertion of the mylohyoid muscle?
Mylohyoid raphe and body of hyoid bone.
What is the action of the mylohyoid muscle?
Elevates floor of mouth.
Describe the innervation of the mylohyoid muscle.
Nerve to mylohyoid muscle (CN V3)
Describe the blood supply to the mylohyoid muscle
Sublingual and submental arteries, suprahyoid branch of lingual artery; mylohyoid and mental branches of inferior alveolar artery
What is the insertion of the sternohyoid muscle?
Inferior border of body of hyoid bone.
What is the origin of the sternohyoid muscle
Sternal end of clavicle and posterior surface of manubrium of sternum
Describe the action of the sternohyoid muscle
Depresses hyoid bone
Describe the innervation of the sternohyoid muscle
Ansa cervicalis (C1-C3) from anterior rami of cervical plexus
Describe the blood supply of the sternohyoid muscle
Infrahyoid branch of superior thyroid artery
Describe the origin of the inferior belly of the omohyoid muscle.
Superior border of scapula, medial to superior scapular notch.
Describe the origin of the superior belly of the omohyoid muscle.
Intermediate tendon
Describe the insertion of the inferior belly of the omohyoid muscle.
Intermediate tendon
Describe the insertion of the superior belly of the omohyoid muscle.
Body of hyoid bone.