Anatomy W2 - Anterior Triangle of the Neck Flashcards
What structure divides the neck into anterior and posterior triangles?
The sternocleidomastoid
List the attachment sits of the sternocleidomastoid
The mastoid process of temporal bone
The medial part of the clavicle - clavicular head
The sternum - sternal head
What nerve supplies the sternocleidomastoid (and the trapezius)?
the accessory nerve (11)
List the infrahyoid muscles/strap muscles.
Omohyoid
Thyrohyoid
Sternothyroid
Sternohyoid
What branch of the common carotid branches again in the neck?
The external
The internal goes straight into the base of the skull then branches when in the skull
At what level does the common carotid bifurcate into the internal and external?
At the level of the upper border of the thyroid cartilage - where Adams apple is
How do you test the accessory nerve?
Ask patient to turn head to the side with resistance against it.
Ask patient to shrug shoulders with resistance against them
How do you test for the hypoglossal nerve?
Ask patient to stick tongue out and lick both corners of the mouth.
What is the brachiocephalic trunk? What side is it on?
ONLY ON THE RIGHT
A trunk that branches off the aortic arch and gives rise to the common carotid artery and the subclavian artery.
The left side branches directly from the aortic arch - no trunk
What is the laryngeal prominence part of?
The thyroid cartilage
Where would a planned airway be placed?
Through the 2,3 or 4th tracheal rings
Where would an emergency airway be placed?
Through the cricothyroid membrane/ligament
What is the depression between the two clavicle called?
The jugular notch
What is proptosis? What is this caused by?
Thickening of the fat behind the eyes.
HYPERthyroidism
How do you detect proptosis?
Ability to see the sclera/the white around the whole iris.
