Anatomy DR MARIUM KIRAN
Anastomosis around the Elbow joint
Anterior descending Aº
Posterior descending Aº
Radial recurrent Aº
introseous recurrent Aº
Anastomosis around the Elbow joint
Inferior & superior ulnar
superior ulnar collateral Aº
Collateral Aº
ulnar recurrent Aº
posterior ulnar recurrent Aº
Cubital fossa
Triangular depression in front of the elbow
Boundaries
Laterally:- Brachioradialis Medially:- pronator teres
Base:- Imaginary line b/w epicondyles of humerus Floor:- Supinator (laterally) , Brachialis (medially) Roof:- Bicipital aponeurosis Fascia Skin
Contents of Cubital fossa Medial to lateral
Bifurcation of brachial Aº
Median nerve Biceps tendon
Radial nerve with deep branches
Supratrochlear lymph nodes
Contents of Posterior Compartment of Arm Muscles
Structures
Blood
supply
Nerve
supply
passing through the compartment
Muscles of Posterior Compartment of Arm:Muscles origin
insertion Nerve supply
Nerve Action root
Triceps long infraglenoid head tubercle of scapula
Olecranon process of ulna
C6,7,8
Triceps lateral head
Upper half of posterior surface of shaft of humerus Triceps Lower half medial head of post. Shaft of humerus
Radial nerve
Extension at elbow joint.
Radial nerve Origin : posterior cord of brachial plexus in axilla wipe around the back of humerus in spiral groove pierces lateral fascial septum front of cubital fossa
Branches of Radial nerve: Muscular
Long & medial head of triceps
branches entering spiral groove
Medial & lateral head of triceps + anconeus
in spiral groove
Brachialis + Brachioradialis + extensor carpi radialis longus below spiral groove
Posterior cutaneous nerve of arm
Lower lateral cutaneous nerve of arm
Posterior cutaneous nerve of forearm
Articular branches