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A coracoid [a] is a paired bone which is part of the shoulder assembly in all vertebrates except therian mammals (marsupials and placentals). In therian mammals (including humans ), a coracoid process is present as part of the scapula , but this is not homologous with the coracoid bone of most other vertebrates.
The coracoid process acts as an attachment and origin for a large number of muscles (attached muscles not labeled here). The coracoid process is a thick curved process attached by a broad base to the upper part of the neck of the scapula; [2] it runs at first upward and medially; then, becoming smaller, it changes its direction, and projects forward and laterally.
This is a list of human anatomy mnemonics, categorized and alphabetized.For mnemonics in other medical specialties, see this list of medical mnemonics.Mnemonics serve as a systematic method for remembrance of functionally or systemically related items within regions of larger fields of study, such as those found in the study of specific areas of human anatomy, such as the bones in the hand ...
Coracoid process of scapula: Coracobrachialis: Coracoid process Medial aspect of shaft of humerus Extension (40°) Posterior fibers of deltoid Spine of scapula: Middle of lateral surface of shaft of humerus Latissimus dorsi: Iliac crest, lumbar fascia, spines of lower six thoracic vertebrae, lower 3–4 ribs, inferior angle of scapula
the sacral region occurring at the end of the spine, directly above the buttocks. The regions of the back of the arms, from superior to inferior, include the cervical region encompassing the neck, the acromial region encompassing the shoulder, the brachial region encompassing the upper arm, the olecranal region encompassing the back of the elbow,
Type I: Notch is absent. The superior border forms a wide depression from the medial angle to the coracoid process. Type II: Notch is a blunted V-shape occupying the middle third of the superior border. Type III: Notch is U-shaped with nearly parallel margins. Type IV: Notch is V-shaped and very small.
Variation in neural spine sails across Dinosauria, clockwise from bottom left: Acrocanthosaurus, Amargasaurus, Spinosaurus, Limaysaurus, Ichthyovenator, and Ouranosaurus sail Sails (also: neural spine sails) are structures resulting from elongation of the vertebral neural spine s, typically in the dorsal, sacral, and caudal vertebrae. They vary ...
In this highly specialized endoskeletal structure, the scapula is a dorsal (directed upwards) process attached to the first rib; the coracoid is a posteroventral (directed backward and down) process; and the acromion is a medioventral (directed inwards and down) process (also known as the prescapular process) located at the base of the scapula.