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Head and Neck
Nerves, Muscles, Blood Supply
10
Anatomy
Graduate
09/23/2006

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Cards

Term
Posterior Triangle
Definition
SCM, Trap, mid third of clavicle
Term
muscular floor of post triangle
Definition
1. splenius capitus
2. levator scapulae
3. scalenus posterior
4. scalenus med
5. ant scal
Term
Nerves of post triangle
Definition
CNXI, dorsal scapular (C5 through mid scal and into levator scap), cutaneous of cerv plexus (lesser occipital, great auricular, transverse cerv, supraclavic), phrenic
Term
Arteries in post triangle

Veins
Definition
1. trans cerv artery
2. suprascap

1. External jug (over SCM)
2. Int jug (under SCM)
Term
Anterior Tri boundaries
Definition
midline of neck
SCM (poseterior)
mandible
Term
Digastric muscle
Definition
O. Mastoid notch for post belly
Digastric fossa of mandible for ant
I intermediate tendon by deep fascia peircing stylohyoid
N. Ant - trigem, post - facial
A: up hyoid, depresses mandible
Term
Omohyoid
Definition
O. inf - uppper scap and suprascap ligament
sup - body of hyoid
I intermediate tendon deep fascia holding clavicle
N: ansa cervicalis
A. down hyoid bone
Term
Subdivisions of ant triangle
Definition
1. digastric (submandibular)
2. Muscular
3. Carotid
4. submental
Term
submental triang boundaries
Definition
midline neck
ant digastric
hyoid
Term
digastric divisions
Definition
ant belly
post belly
mandible
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