-Applied Anatomy

Extensor Digitorum Brevis

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA ANATOMY OF EXTENSOR DIGITORUM BREVIS ORIGIN From anterior part of the dorsal surface of the calcaneum INSERTION Four tendons of extensor digitorum brevis insert into the proximal phalanx of the big toe and long extensor tendon to the toes 2,3 and 4 The medial part of […]

Extensor Carpi Ulnaris

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA EXTENSOR CARPI ULNARIS ORIGIN: The ECU arises from a common extensor origin on the lateral epicondyle of the humerus. INSERTION: It is inserted into the posterior surface of the base of the 5th metacarpal bone. The ECU tendon lies in the sixth dorsal extensor compartment of […]

Extensor Carpi Radialis Longus

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA Anatomy of EXTENSOR CARPI RADIALIS LONGUS ORIGIN: Lower third of lateral supracondylar ridge of the humerus. INSERTION: Back of base of second metacarpal bone. ACTION: Extension and abduction of hand at wrist joint. NERVE SUPPLY: Radial nerve (C6) CLINICAL SIGNIFICANCE: Tendon of extensor carpi radialis longus […]

Short Head of Biceps Femoris Muscle

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA SHORT HEAD OF BICEPS FEMORIS SHORT HEAD OF BICEPS FEMORIS Origin: Femoral shaft from the middle 1/3rd of the Linea Aspera lateral to the supracondylar ridge of the femur. Insertion : It joins with the long head of the Biceps Femoris in the distal thigh and […]

The Gantzer’s Muscle

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA GANTZER’S MUSCLE Is an accessory head of flexor pollicis longus. Seen in about 60% of cadavers. ORIGIN : Is variable. INSERTION :Inserts distally into ulnar border of flexor pollicis longus. NERVE SUPPLY:Anterior interosseous nerve. Location of muscle in relationship to anterior interosseous nerve or median nerve […]

Bones with Precarious Blood supply

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA There are at least seven bones with very important blood supply which are the talus,navicular,scaphoid,lunate,5th metatarsal,proximal femoral head and proximal humerus.Fracture in these bones or dislocation of their joints can lead to interruption in this peculiar blood supply causing the threat of death of the bone […]

Anatomy and Biomechanics of the Patella

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA Overview The patella is the largest sesamoid bone in the human body. It lies within the quadriceps tendon and forms part of the extensor mechanism of the knee joint. The patella plays an important role in knee extension, force transmission, and protection of the knee joint. […]

Blood supply of Structures of the Knee

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA BLOOD SUPPLY OF STRUCTURES OF THE KNEE There are 2 main sources that supply the structures of the knee ; the Popliteal artery and the Anterior tibial artery. ANTERIOR TIBIAL ARTERY a) Recurrent branch of anterior Tibial artery – close to the tibial tubercle […]

Cross sectional anatomy of Middle leg

Courtesy: Harry Benjamin Laing MRCS, FRCS(Tr and Orth) tutorials

Cross Sectional Anatomy of Proximal third of Leg

Courtesy: Harry Benjamin Laing MRCS, Ortho M8, FRCS(Tr and Orth) tutorials

Cross sectional anatomy of distal lower leg

Courtesy: Harry Benjamin Laing, MRCS, Ortho M8, FRCS(Tr and Orth) Tutorials

Arches of the Foot simplified

Courtesy: Sports Science Solutions, Arches of the Foot Overview The human foot contains several bones arranged in a way that forms structural arches. These arches provide strength, flexibility, and shock absorption during walking and running. The arches distribute body weight and help in propulsion during locomotion. Bones Contributing to the Arches of the Foot The […]