Axilla and Breast Flashcards
The _____ is essentially the region that we think of as the deep compartment of the armpit
axilla
It is a complex region located inferior to the glenohumeral joint (shoulder joint), at the junction of the arm and the thorax
Axilla
The is an important passageway for neurovascular structures to the upper limb.
axilla
It is a “pyramid-shaped” space that invested in layers of fascia. Some of these fascial layers are also continuous with the thorax and upper limb.
Axilla
The ____ of the pectoral region consists of superficial and deep layers that define borders, invest muscles, and create potential spaces.
fascia
The ___ fascia of axilla: Subcutaneous; fatty
Superficial fascia
The ___ fascia of axilla: Compartmentalizing; Surrounds muscles; Attaches to bone in most cases
Deep fascia
Skin and subcutaneous fatty tissue; Platysma muscle–Muscle over lower mandible, neck and upper thoracic/shoulder region; a very superficial skeletal muscle that is mostly subcutaneous; Supraclavicular nerves (cutaneous branches from C3 & C4 cervical spinal nerves); Anterior & lateral branches of intercostal nerves (come up through deeper layers of fascia to subcutaneous layers) are all covered by ___ fascia
Superficial fascia
Muscle over lower mandible, neck and upper thoracic/shoulder region; a very superficial skeletal muscle that is mostly subcutaneous
Platysma muscle
____ fascia (attaches to clavicle and sternum; invests pectoralis major muscle; continuous with fascia of anterior abdominal wall)
Pectoral fascia
____ fascia (forms floor of axilla)
Axillary fascia
___ fascia (deep to pectoralis major muscle)–Invests subclavius and pectoralis minor muscles–Costocoracoid membrane connects subclavius to pectoralis minor–attaches to clavicle –Becomes suspensory ligament of axilla
Clavipectoral fascia
____ connects subclavius to pectoralis minor
Costocoracoid membrane
____ fascia (surface of deltoid muscle)–Attaches to clavicle, acromion & spine of scapula–Continuous with pectoralis fascia–Compartmentalizes scapular muscles
Deltoid fascia
What fascias make up the deep fascia of pectoral region?
Pectoral, axillary, clavipectoral, and deltoid
____ Allows passage of neurovascular structures between axilla and pectoral region
Clavipectoral triangle
Borders of _____ are deltoid, pectoralis major, middle 1/3 of clavicle
Clavipectoral triangle
Contents of ____ include cephalic vein, deltopectoral lymph nodes, deltoid branch of thoracoacromial a. (from axillary a.)
Clavipectoral triangle
The ___ of the axilla includes the clavicle, scapula, and 1st rib
Apex of axilla
The apex contains that ____. This space is the passageway for neurovascular structures (axillary vessels and brachial plexus components) from the neck to the upper limb
cervicoaxillary canal
The ____ of the axilla includes Skin & superficial fascia (axillary fossa; aka armpit)•Anterior axillary fold•pectoralis major muscle•Posterior axillary fold•latissimus dorsi muscle•teres major muscle•Chest wall•serratus anterior muscle
base of axilla
The ____ of the axilla includes Clavicle (superior)•Subclavius muscle (superior)•Pectoralis major muscle•Pectoralis minor muscle
Anterior wall of axilla
The ____ of the axilla includes Scapula•Subscapularis muscle•Latissimus dorsi muscle•Teres major muscle
Posterior wall of axilla
The ____ of the axilla includes intertubercular sulcus (bicipital groove)•tendon of long head of biceps•coracobrachialis tendon
Lateral Wall of axilla
____ is an extension of the prevertebral layer of deep cervical fascia into the cervicoaxillary canal (apex) of the axilla.
axillary sheath