Question | Answer |
What is the shape of the Axilla? | pyramid shaped |
The axilla is bounded proximally by the ___ ______ . | 1st rib |
The axilla is bounded distally by the _______ ________ muscle. | teres major |
The anterior wall of the axilla is what? | pectoralis major and minor, and subclavius mm. |
The posterior wall of the axilla is... | latissimus dorsi, teres major, and subscapularis |
The serratus anterior is what wall of the axilla? | medial |
What is the lateral wall of the axilla? | coracobrachialis and biceps brachii |
What are the contents of the axilla? | 1. Axillary artery and vein 2. Brachial plexus 3. Fat 4. Lymph nodes |
At what point does the subclavian artery change its name to axillary artery? | when it crosses the 1st rib |
The first portion of the axillary artery is from where to where? | 1st rib to pec minor |
The second portion of the axillary artery is found... | deep to pec minor |
The third portion of the axillary artery is found from where to where? | from the lateral border of pec minor to the lateral edge of teres minor |
How many branches come from the the first portion? second portion? third portion? | 1, 2, 3 |
What is the branch of the first portion of the axillary artery? | superior thoracic |
What does the superior thoracic artery supply? | the 1st and 2nd intercostal spaces |
What are the branches of the 2nd portion of the axillary artery? | 1. lateral thoracic artery 2. Thoracoacromial trunk |
What nerve does the lateral thoracic artery run with? | long thoracic nerve |
What are the four branches of the thoracoacromial trunk? | 1. clavicular 2. acromion 3. deltoid 4. pectoral branches`` |
What are the three branches of the third portion of the axillary artery? | 1. Anterior humeral circumflex 2. Posterior humeral circumflex 3. Subscapular |
What are the branches off the subscapular artery? | 1. Thoracodorsal 2. scapular cirumflex |
What nerve does the thoracodorsal artery run with? | thoracodorsal nerve |