Neck, Thyroid Gland, And Larynx Flashcards
What is the only triangle that isn’t bilaterally paired?
Submental
What are the contents of the carotid triangle?
Internal jugular vein, carotid artery, vagus nerve
Sternocleidomastoid
O: mastoid process of temporal bone
I: sternal head - anterior surface of manubrium of sternum
Clavicular head - superior surface of medial third of clavicle
N: spinal accessory nerve
A: unilateral - tilts head to same side bilateral - extends/flexes neck
Platysma
O: inferior border of mandible
I: fascia covering superior parts of pec major and deltoid
N: cervical branch of facial nerve
A: draws corners of mouth inferiorly and widens it as in expressions of sadness and fright
Trapezius
O: nuchal line, external occipital protuberance, nuchal ligament, spinous processes
I: clavicle, acromion, spine of scapula
N: spinal accessory
A: elevates, retracts, and rotates scapulae superiorly
3 layers of deep cervical fascia
- investing
- pretracheal
- prevertebral
Cervicodorsal trunk
Branch of the thyrocervical trunk
- bifurcates into superficial cervical artery & dorsal scapular artery
Suprascapular artery
Branch of the thyrocervical trunk
External jugular vein
Terminates in the subclavian vein
Subclavian vein
United w/ internal jugular vein to form brachiocephalic vein
External jugular vein terminates
In the subclavian vein
Subclavian vein unites with ? To form ?
United with internal jugular vein
Form brachiocephalic vein
Carotid sinus
Baroreceptor that reacts to changes in arterial BP
Cervicodorsal trunk
Branch of the thyrocervical trunk
- bifurcates into superficial cervical artery & dorsal scapular artery
Suprascapular artery
Branch of the thyrocervical trunk
