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 […]
-Applied Anatomy
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 is embedded within the quadriceps tendon and forms a crucial part of the knee extensor mechanism. Key Functions Facilitates knee extension Enhances force transmission Protects the anterior aspect of the knee joint Attachments of […]
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 is composed of multiple bones arranged to form structural arches. These arches are essential for: Strength and stability Flexibility during movement Shock absorption during walking and running Key Functions of Foot Arches Distribute body weight Assist in propulsion during gait Reduce impact forces […]
Classification of Joints Simplified
Courtesy: Sports Science Solutions, Lecture on Classification of Joints Classification and Function of Joints Overview Joints (articulations) are points where two or more bones meet Functions: Allow movement Provide stability Basis of Classification Structure (type of tissue connecting bones) Function (degree of movement allowed) Skeletal System and Joints Total Bones 206 bones Divisions of […]
MRI Anatomy of the Shoulder
Courtesy: Dr Jean Jose MD, Associate Chief, Musculoskeletal Radiology Section, Associate Professor of Clinical Radiology, University of Miami School of Medicine, Florida, USA MRI Anatomy of the Shoulder Overview The shoulder is a highly mobile and complex joint composed of: Scapula Clavicle Humerus Clinical Importance Understanding shoulder MRI anatomy is essential for evaluating: Rotator […]
MRI Anatomy of the Wrist
Courtesy: Dr Jean Jose MD, Associate Chief, Musculoskeletal Radiology Section, Associate Professor of Clinical Radiology, University of Miami School of Medicine, Florida, USA MRI Anatomy of the Wrist Overview The wrist is a complex anatomical region consisting of: Multiple bones Tendons Ligaments Neurovascular structures Clinical Importance MRI of the wrist is essential for evaluating: […]