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32 Cards in this Set

  • Front
  • Back
What is the axilla?
The pyramidal space inferior to the glenohumeral joint and superior to the axillary fascia at the junction of the arm and thorax.
What are the contents of the axilla?
Blood vessels
Lymphatic vessels
Axillary lymph nodes
Axillary fat
Neurovascular structures
Where does the axillary begin?
At the lateral border of the 1st rib as the continuation of the subclavian artery and ends at the inferior border of the teres major. It passes posterior to the pectoralis minor into the arm and becomes the brachial artery when it passes the inferior border of the teres major, at which point it usually reached the humerus.
How many parts is the axillary artery divided into?
Where does the axilla end?
The inferior border of the teres major
First part of the axillary artery
1st part is between the lateral border of the first rib and the medial border of the pectoralis minor.
What does the axillary artery become and when?
Brachial artery when it passes the inferior border of teres major, at which point it usually has reached the humerus.
The Second part of the axillary artery
Lies posterior to pectoralis minor and has two branches--the thoracoacromial and lateral thoracic arteries--which pass medial and lateral to the muscle, respectively.
The third part of the axillary artery
Extends from the lateral border of pectoralis minor to the inferior border of teres major and has three branches.
Subscapular artery
Anterior circumflex humeral
Posterior circumflex humeral
What is the largest branch of the axillary artery?
Subscapular artery
Brachial plexus, Supraclavicular part?
Dorsal scapular nerve
Long thoracic nerve
Nerve to the subclavius
Suprascapular nerve
Brachial plexus, Infraclavicular?
Lateral pectoral
Medial pectoral
Medial cutanenous nerve to the arm
Medial cuteneous nerve to the forearm
Upper subscapular
Lower subscapular
Where do most nerves in the upper limb arise from?
Brachial plexus
Where does the brachial plexus begin and end?
At the neck and extends into the axilla.
What forms the brachial plexus?
The union of the anterior rami of the last four cervical (C5-C8) and the first thoracic (T1).
The roots of the brachial plexus pass through?
the gap between the anterior and middle scalene muscles with the subclavian artery.
Dorsal scapular
Origin C5
Rhomboids and levator scapulae
Long thoracic
Serratus anterior
C5, C6, C7
Infraspinatus, Supraspinatus
Hlenohumeral joint
C5, C6
Subclavian nerve
Sternoclavicular joint
C5, C6
Lateral pectoral
Pectoralis major
C5, C6, C7
Coracobrachalis, biceps, and brachialis
Medain nerve
Muscles of the anterior forearm compartment, vive intrinsic muscles in thenar half of palm and palmar skin
C6, C7, C8, T1
Medial pecotral
Pectoralis minor and major
C8, T1
Medial brachial cutaneous nerve
Skin of medial side of arm, as far distal as medial epicondyle of humerus and olecranon of ulna
Medial antebrachial cutaneous nerve
Skin of medial side of forarm, as far distal as wrist.
C8, T1
Upper subscapular
Superior portion of subscapularis
Lower subscapular
Inferior portion of subscapularis
Latissimus dorsi
C6,C7, C8
C5, C6
All muscles posterior compartments of arm