Lecutre 5: Axilla, Lateral Cervical Triangle Flashcards
Functions of fascia of pectoral region
Defines borders
Invests muscles
Creates potential spaces
Inferior boundary of LCT
Clavicle
Medial boundary of apex of axilla
First rib
CN XI (spinal accessory nerve) Spinal root arises from
C1-C5
Fibers pass superiorly through foramen magnum and join cranial root
CN XI spinal root innervates the
Sternocleidomastoid
Trapezius
Superficial fascia of pectoral region consists of
Platysma
Supraclavicular nerves
Anterior and lateral branches of intercostal nerves
Vascular content of LCT
Occipital artery Transverse cervical artery Subclavian vein Subclavian artery External jugular vein
Bones of Pectoral region
Clavicles
Sternum (Manubrium, Body, Xiphoid)
Ribs
Scapula
Vessels of axilla
Axillary vein and artery
Cephalic and basilic vein
Axillary lymph nodes
Clavipectoral fascia turns into the
Suspensory ligament of axilla
Posterior boundary of LCT
Anterior border of trapezius
Borders of Deltopectoral (clavipectoral) triangle consist of
Deltoid
Pectoralis major
Middle 1/3 of clavicle
Anterior boundary of LCT (lateral cervical triangle)
Posterior border of sternocleidomastoid
Nerves of axilla
Long thoracic nerve
Cords of brachial plexus
Proximal ends of terminal nerves or brachial plexus
What pierces the Clavipectoral fascia
Cephalic vein
Thoracoacromial artery
Lateral pectoral nerves