Gross 2 The Neck Area Flashcards
(254 cards)
insertion of the platysma?
lower border of the mandible and the angle of the mouth
origin of the platysma?
superficial Fascia over the pectoralis Major and deltoid muscles
nerve of the Platysma?
Cervical branch of facial nerve (CN 7)
function of platysma?
depresses the mandible and draws down the corner of the mouth
origin of the sternocleidomastoid?
sternal head from the front of the manubrium, clavicular head from the third of the clavicle
insertion of the sternocleidomastoid
lateral surface of mastoid process, lateral half of the superior nuchal line
nerve of the sternocleidomastoid
accessory nerve (CN XI)
function of the sternocleidomastoid?
chief flexor of the head
origin of the trapezius
external occipital protuberance
ligamentum nuchae
spinous processes of the seventh cervical and all thoracic vertebrae
insertion of the trapezius
the lateral third of the clavicle
spine of the scapula
acromion process
nerve of the trapezius
accessory nerve (CN11) and C3 and C4 from the cervical plexus
function of the trapezius
the upper portion rotates the scapula upward (elevates)
the middle portion retracts
the lower portion rotates the scapula downward (depresses)
origin of the Omohyoid
the inferior belly of omohyoid originates from the upper border of the scapula. it ends in an intermediate tendon located deep to the sternocleidomastoid muscle. the superior belly extends upwards from this tendon
insertion of the Omohyoid
the body of the hyoid bone
nerve of the Omohyoid
Ansa Cervicalis (C1,C2,C3)
function of the Omohyoid
depress the hyoid bone and larynx
origin of the Sternohyoid
posterior surface of the manubrium
and
the medial end of the clavicle
insertion of the sternohyoid
the body of the hyoid bone
nerve of the sternohyoid
Ansa Cervicalis (C1,C2,C3)
function of the sternohyoid
depresses the hyoid bone and larynx
origin of the sternothyroid
posterior surface of the manubrium
and
deep inferior to the origin of the sternohyoid
function of the sternothyroid
depresses the larynx
origin of the thyrohyoid
oblique line on the lamina of the thyroid cartilage
insertion of the thyrohyoid
the body of the hyoid bone