Flashcards in Axilla of Arm Deck (13):
What 3 structures form the anterior wall of the Axilla?
Pectoralis Major and Minor muscles.
What structure forms the lateral wall of the axilla?
What 4 structures form the Posterior Wall of the Axilla?
Long Head of Triceps Brachii Muscle.
What defines the Floor of the Axilla?
Skin of armpit.
Opens laterally into arm.
What defines the Medial Wall of the Axilla?
Upper thoracic wall.
Serratus Anterior Muscle
What 3 structures define the Inlet of the Axilla?
Lateral margin of rib 1.
Superior margin of scapula to coracoid process.
What does the axillary sheath contain?
What are the 5 contents of the Axilla itself?
Axillary lymph nodes (Hard.Looks like a bean)
How are the axillary vein, artery, and brachial nerves oriented at the axillary inlet?
Axillary vein is anterior,
Axillary artery is in the middle, and
Brachial plexus trunks are posterior
What muscles pass through the axilla?
Biceps Brachii and Coracobrachialis.
Where do axillary lymph nodes receive lymph from? 7 items
anterolateral abdominal wall.
75% of mammary gland.
Where are humeral (lateral) nodes? What is significant?
Posterior and medial to the axillary vein. Receives most of the lymphatic drainage from upper limb.