Lecture 20: Mm of Ant. Neck ORIGINS Flashcards
What is the origin of SCM (Sternocleidomastoid)?
Sternal head: Anterior surface of manubrium
Clavicular head: Medial 1/3 of the clavicle (superior surface)
What is the origin of Mylohyoid?
Mylohyoid line of the body of the mandible
Inner surface of the mandible
What is the origin of Digastric?
Anterior belly: Inner surface of body of mandible (digastric fossa)
Post. belly: Mastoid process of temporal bone (inner surface)
What is the origin of Geniohyoid?
Inferior mental spine of the mandible (genial tubercles)
Inner surface of the mandible
What is the origin of Stylohyoid?
Styloid process of the temporal bone
What is the origin of Thyrohyoid?
Oblique line of the thyroid cartilage
What is the origin of Omohyoid?
Upper border of the scapula
Suprascapular ligament
Attached to the 1st rib by a sling of cervical fascia
*Note ligamentous origin
What is the origin of Sternohyoid?
Medial end of clavicle and manubrium of sternum
Origin on posterior aspect of sternum and clavicle
What is the origin of Sternothyroid?
Manubrium of sternum (posterior surface)
What is the origin of Anterior Scalene?
Anterior tubercles of TVPs of C3-C6
What is the origin of Middle Scalene?
Posterior tubercles of TVPs of C2-C7
What is the origin of Posterior Scalene?
Posterior tubercles of TVPs of C4-C6
What is the origin of Longus Capitis?
Anterior tubercles of the TVPs of C3-C6
(medial to ant. scalene origin)
What is the origin of Longus Colli?
