Axilla and Cubital Fossa (AYY)

7/24/2019 Axilla and Cubital Fossa (AYY)

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Axilla and Cubital fossa

AYY


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Axilla (armpit)

It is a pyramidal space present between the upper part of armand chest wall.

Boundaries - It has an apex, a base and 4 walls.

Walls of Axilla;

1. Anterior wall2. Posterior wall

3. Medial wall

4. Lateral wall

BDS 1210

2014/AYY


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Axilla (armpit)

Base (Floor)

It is directed downwards.

It is formed by skin and axillary fascia.

BDS 1210

2014/AYY


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Axilla (armpit)

Anterior wall

Formed by pectoralis major, pectoralis minor, clavipectoralfascia and subclavius muscle.

BDS 1210

2014/AYY


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Axilla (armpit)

Medial wall

Upper four ribs with intercostal muscles.

Upper part of serratus anterior muscle.

BDS 1210

2014/AYY


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Axilla (armpit)Lateral wall

Upper part of shaft of humerus at the region of intertubercusulcus (bicipital groove).

Coracobrachialis and biceps brachii muscle.

BDS 1210

2014/AYY


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Axilla (armpit)

Posterior wall

Subscapularis (above).

Teres major and latissimus dorsi (below).

BDS 1210

2014/AYY


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Axilla (armpit)

BDS 1210

2014/AYY


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Axilla (armpit)

Contents of axilla

1. Axillary artery and its branches,

2. Axillary vein and its tributaries,

3. Brachial plexus (infraclavicular part), three

cords of brachial plexus and their branches,4. Axillary lymph nodes (Five groups),

5. Fat and areolar tissue..

BDS 1210

2014/AYY


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Axilla (armpit)

Clinical correlates

1. Abscess in the axilla may arise from infectionand suppuration of particular group of lymphnodes.

2. Infection of the hair follicle and sebaceousglands gives rise to boils which are commonin this area.

BDS 1210

2014/AYY


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Axilla (armpit)

3. Examination of axillary lymph nodes isimportant in clinical practice since it drainsthe whole of upper limb and breast inaddition to the body wall above the level ofumbilicus.

BDS 1210

2014/AYY


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Cubital fossa

It is an area of transition between the arm and forearm.

It is located anterior to the elbow joint.

It is a triangular depression between two forearm muscles.

BDS 1210

2014/AYY


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Cubital fossa

Boundaries

Laterally Brachioradialis (medial border).

Medially - pronator teres (lateral border).

BDS 1210

2014/AYY


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Cubital fossa

Boundaries

Base Represented by an imaginary linejoining the two epicondyles of humerus.

Apex Meeting point of lateral and medial

boundaries.

BDS 1210

2014/AYY

BDS 1210


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Cubital fossa

Boundaries

Roof Skin, superficial fascia with median cubital vein, deepfascia & bicipital aponeurosis.

Floor Brachialis and supinator muscles.

BDS 1210

2014/AYY

BDS 1210


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BDS 1210

2014/AYY

BDS 1210


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Cubital fossa

Contents

1. Median nerve.

2. Termination of brachial artery andbeginning of radial and ulnar arteries.

3. Tendon of biceps.4. Radial nerve.

BDS 1210

2014/AYY

BDS 1210


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Cubital fossa

Clinical correlates

1. The blood pressure is recorded byauscultating the brachial artery in frontof the elbow.

2. The median cubital vein is often the vein

of choice for intravenous injections.3. Anatomy of cubital fossa is useful while

dealing with the fractures around theelbow.

BDS 1210

2014/AYY

BDS 1210


19/19

References1. Clinical Oriented Anatomy, K.L.Moore.

2. Human Anatomy, M.McKinley.

3. Atlas of Human Anatomy, F.H.Netter.

4. Atlas of Human Anatomy, Sobotta.

BDS 1210

2014/AYY

Documents

Axilla and Cubital Fossa (AYY)