Neck Region Flashcards
superior and inferior limits of neck
superior - inferior angle of mandible - mastoid process - external occipital protuberance inferior - clavicles - superior thoracic aperture
hyoid bone located
c3
cricoid cartilage located
c6
thyroid cartilage located
c4 c5 (aka adams apple)
OI of platysma
O- fascia and skin over pectorals major and deltoid
I- inferior border of mandible and skin of lower face
FN of platysma
F- muscle of facial expression
N - VII
OI of sternocleidomastoid
O-
- sternal head- round tendon attaching to manubrium
- – clavicular head- superior surface of medial 1/3 of clavicle
I- lateral surface of mastoid process , superior nuchal line of occipital bone
NF of sternocleidomastoid
N
Spinal roots XI (accessory nerve)
branches c2 c3
F
tilt head laterally, turn to opposite side
flex neck (both muscles_
OI trapezius
o
– superior nuchal line, ligament nuchal spinous process c7 t1-t12
I- lateral 1/3 of clavicle spine of scapula acromion process
FN trapezius
N- XI (accessory spinal nerve ) C3 c4
F - elevates/ depresses and rotates scapula,
whats above/ below sternocleidomastoid
above- superficial jugular
below - deep jugular
boundaries of posterior cervical triangle
Anterior- posterior part of SCM
posterior- anterior part of trapezius
inferior- clavicle
what passes over the apex of the posterior cervical triangle***
apex- is at superior nuchal line
– the occipital artery (before it goes to posterior aspect of head
floor of post cervical triangle***
- splenious capitus
- levator scapula
- scalene -post
- scalene- mid
- scalene ant
what goes between anterior and middle scalene*
- brachial plexus
on post triangle
post occipital triangle is divided into 2 triangles (name them) by _____
- occipital triangle
- supraclavicular/omoclavicular/ or subclavian
by the inferior belly of omohyoid muscle