shoulder joint
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Shoulder Joint

The shoulder joint, also known as the glenohumeral joint, is a ball-and-socket joint that involves the humerus (upper arm bone) and the scapula (shoulder blade). It is one of the most mobile joints in the human body, allowing for a wide range of movements such as flexion, extension, abduction, adduction, rotation, and circumduction. Introduction The glenohumeral joint, which is situated in the shoulder, can move in a wide variety of ways….

wrist joint
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Wrist Joint

Introduction The wrist joint, also known as the radiocarpal joint, is a complex structure that connects the hand to the forearm. It is responsible for a wide range of movements, including flexion, extension, radial deviation (movement toward the thumb), ulnar deviation (movement toward the little finger), and some degree of circumduction. Various bones and joints…

fibula bone
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Fibula Bone

Introduction The fibula is a long bone in the lower extremities that is part of the lateral side of the tibia. The fibula is significantly thinner than the tibia when compared. It starts at the knee joint and travels down the side of the leg to the ankle joint, which is situated right behind the…

Bicipital Groove
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Bicipital Groove

Bicipital Groove Anatomy The Bicipital Groove, also known as the intertubercular groove or sulcus, is an anatomical structure present in the humerus bone of the upper arm. Situated on the front (front) aspect of the bone, the bicipital groove performs a key function in accommodating and protecting the long head of the biceps brachii muscular…

carpal bones
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Carpal Bones

Introduction The wrist bones known as the carpal bones connect the distal ends of the radial and ulnar bones of the forearm to the bases of the five metacarpal bones of the hand. The proximal and distal rows include the two rows of the eight carpal bones. From radial to ulnar, These bones comprise the…

ulna
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Ulna Bone

Introduction The ulna bone is one of the two bones in the forearm, the other bone is the radius. It is located on the medial side of the forearm when in the anatomical position (with the palms facing forward). The ulna is primarily responsible for forming the elbow joint with the humerus and articulates with…

radius
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Radius Bone

Introduction The radius is one of the two long bones that make up your forearm, along with the ulna. It is located on the lateral side of the forearm, which is the same side as the thumb. The radius plays a crucial role in the movement and stability of the forearm and hand, enabling activities…

Humerus Bone
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Humerus Bone

Introduction The humerus, the biggest bone in the upper extremities, makes up the human brachium, or arm. It articulates with the radius and ulna distally at the elbow joint and proximally at the glenohumeral (GH) joint with the glenoid. The humerus’s most proximal portion is its head, which connects to the glenoid cavity on the…

Scapula Bone
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Scapula Bone

Introduction The triangular, flat scapula bone is referred to as the “shoulder blade”. It is located in the upper thoracic region on the posterior part of the rib cage. It connects the humerus at the glenohumeral joint and the clavicle at the acromioclavicular joint to form the shoulder joint. The scapula is attached to 17…