Monday, April 4, 2022

Cubital fossa





Cubital fossa is a triangular shaped depression over the anterior aspect lf elbow joint. It is an area between arm and forearm.

BORDERS - 

1. Medial 
Lateral border of pronator teres.

2. Lateral
Medial border of brachioradialis.


3. Base/ Superior
An imaginary line which joins both epicondyl of humerus.

4. Apex 
Meeting point of lateral and medial boundaries.

ROOF - 

1. Skin
2. Superficial fascia
3. Bicipital aponeurosis
4. Deep fascia

FLOOR - 

1. Supinator
2. Brachialis

CONTENTS - 

1. Radial nerve - 
Passes laterally in cubital fossa and divides into superficial and deep branch.

2. Biceps brachii (tendon) -
Passes centrally in cubital fossa and attaches to radial tuberosity of radius bone.

3. Brachial artery -
Present at the apex of cubital fossa and further divides into radial and ulnar artery.

4. Median nerve - 
It is the most medial content of cubital fossa which passes between the two head of pronator teres muscle.

Note - The roof of cubital fossa contains some superficial vein like median cubital vein, basilic vein and cephalic vein which has a clinical relevance.

CLINICAL ANATOMY - 

1. Median cubital vein is often the vein choosed for IV injections.

2. Blood pressure is universally recorded by auscultating the brachial artery present infront of elbow.

Note :- TRICK TO LEARN THE CONTENTS OF CUBITAL FOSSA (from medial to lateral)

M - Median nerve
B - Brachial artery
T - Tendon of biceps brachii
R - Radial nerve





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