Anastomosis Around Elbow Jt.pptx

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