lecture 5 notes Flashcards
the fibers of the sternocleidomasoid run
diagonal
what muscle is the #1 muscle for cervical rotation
sternocleidomastoid
what does the SCM do unilaterally?
lateral flexion of neck to same side and rotates it so your face is toward the oppiste direction
what does the SCM do bilaterally?
-extends the neck at the atlanto-occiptial joint (OA joint)
-flexes cervical verterbae (making double chin)
-extends top vertebrae while flexion inferior vertebrae (move chin foward while head is kpet level)
the SCM splits the neck region into
- anterior cervical region (anterior triagnle)
- lateral cervical region (posterior triangle)
- posterior cervical region
muscles of anterior cervical region
suprahyoids
infrahyoids
muscles of the suprahyoids
-mylohyoid
-digastric
-stylohyoid
-geniohyoid
the digastric has an
anterior and posterior belly
muscles of the infrahyoids
thyrohyoid
-sternothyroid
-omohyoid
-sternohyoid
omo-
shoulder
anterior board of the anterior cervical region (anterior triangle)
the median line of the neck
posterior boarder of the anterio triagnle
the anterior border of the SCM
the superior boundary of the anterior triagnle is formed by the
inferior border of the mandible
an apex is located where in the anterior traingle
at the jugular notch in the manubrium
the roof of the anterior triagnle is formed by
subcutaneous tissue containing the platysma
the floor of the anterior triangle is formed by
pharynx, larynx, and the thyroid gland
the anterior cervical region contains what other trianlges inside of it?
-submandibular
-submental
-carotid
-muscular )omotracheal
carotid traingle contains which muscles
superior belly of omohyoid ,posterior belly of digastric , anterior belly of SCM
what artery is found inside of the carotid triangle
common carotid artery
what vien is found inside of the carotid triangle
internal jugular
carotid triangle contents incude
carotid sinus and body