spine of scapula

spine of scapula

At its upper and outer angle the scapula bears a shallow hollow with which the rounded head of the upper arm bone (the humerus) articulates. The spine of scapula is a prominent plate of bone, which crosses obliquely the medial four-fifths of the dorsal surface of the scapula at its upper part, and separates the supra- from … lateral angle of scapula. The intrinsic muscles of the scapula include the muscles of the rotator cuff—the subscapularis, teres minor, supraspinatus, and infraspinatus. Position of spine (shown in red). It presents two surfaces and three borders. She had not noticed a decreased range of motion. [1]. Spina scapulae – Spine of scapula Acromion Fossa supraspinata – Supraspinous fossa Fossa infraspinata – Infraspinous fossa Cavitas glenoidalis – Glenoid cavity Tuberculum supraglenoidale – Supraglenoid tubercle Tuberculum infraglenoidale – Infraglenoid tubercle Processus coracoideus – Coracoid process 360° rotation of the scapula. The humeral upper extremity consists of a rounded head, a narrow neck, and two short processes. Root of spine shown in red. The rhomboid major, rhomboid minor, and levator scapulae periscapular muscles are transferred laterally on the scapula to replace the functions of the lower, middle, and upper fibers of the trapezius, respectively. It articulates with the clavicle to form the acromioclavicular joint. They make … The spinal column of a vertebrate. The latissimus dorsi is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline. Of the three borders, the anterior is attached to the dorsal surface of the bone; the posterior, or crest of the spine, is broad, and presents two lips and an intervening rough interval. Animation. Some mammalian species have only the scapula. Root of spine is shown in red. The levator scapulae is a skeletal muscle situated at the back and side of the neck. Painting a ceiling, helping a friend move furniture, or participating in a softball league are … The spine ends in a bony process, the coracoid process, the end … Left scapula seen from behind (spine shown in red). Die Scapula bildet den hinteren Teil des knöchernen Schultergürtels. Position of root of spine (shown in red.) lateral side, junction where lateral and superior junctions unite. The trapezius and the deltoid are attached to the spine of the scapula and the acromion. … The bone is surrounded and supported by a complex system of muscles that work together to help you move your arm. The humerus is a long bone in the arm that runs from the shoulder to the elbow. It lies immediately medial to the attachment of the acromion to the lateral angle of the scapular spine. The scapula AP view is a specialized projection of the scapular bone, performed in conjunction with the lateral scapular view. The supraspinous fossa of the posterior aspect of the scapula is smaller than the infraspinous fossa, concave, smooth, and broader at its vertebral than at its humeral end. Pointing laterally forward, it, together with the acromion, serves to stabilize the shoulder joint. Bedienungsanleitung; Haftungsausschluss; Verantwortlichkeit; Körper. The acromion process is a palpable lateral and enlarged extension of the posterior spine of the scapula which projects anterolaterally to the spine. Posterior view. The spine of the scapula transverses the dorsal surface of the bone from the medial margin to the lateral margin. Define spine of scapula. It forms the medial boundary of the great scapular notch, which serves to connect the supra- and infraspinatous fossae. The skeleton also consists of five main parts: the skull, spine, scapula, ribs and bones in the … Physical trauma or injury ca… Anteriorly, on the costal surface, is the shallow subscapula… It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. Root of spine shown in red. The Study: The location of the inferior angle of the scapula in relation to the spine in the upright position: a systematic review of the … The word latissimus dorsi comes from Latin and means "broadest [muscle] of the back", from "latissimus" ' and "dorsum". The lateral border, or base, the shortest of the three, is slightly concave; its edge, thick and round, is continuous above with the under surface of the acromion, below with the neck of the scapula. Many other muscles attach to the scapular margins. The deltoid originates from the scapular spine, acromion, and anterior clavicle. In humans it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consists of the clavicle, scapula, and coracoid. The suprascapular artery is a branch of the thyrocervical trunk on the neck. The spine, at lateral to the root of the spine, curves down and laterally to form lip. Description. Examine a mounted skeleton, and note that the apex of the scapula is directed ventrally. lateral border of scapula (axillary) closest to your armpit. The scapula is described as having superior, medial, and lateral borders. A strong,... Spine of scapula - definition of spine of scapula by The Free Dictionary. It moves the scapula and supports the arm. Two important arteries, the axillary artery and the subclavian artery, run anterior to the scapula and posterior to the clavicle. The lateral edge of the skin paddle should not be designed beyond anterior edge of the latissimus dorsi. This lip is called the deltoid tubercle. The spine is triangular, and flattened from above downward, its apex being directed toward the vertebral border. Animation. As the Latin name suggests, its main function is to lift the scapula. Animation. This provides access to the supraspinous fossa. A flat, triangular bone with a prominent, near-horizontal raised spine, lying over the upper ribs of the back. After passing through the skin and subcutaneous tissues, the trapezius muscle is seen with its fibers running parallel to the incision. spine of the scapula. Twelfth thoracic vertebra. 2. The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In human anatomy, the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa. Left scapula. spine: see spinal columnspinal column, bony column forming the main structural support of the skeleton of humans and other vertebrates, also known as the vertebral column or backbone. T6/T7 inferior angle of scapula. Note the flat shape of the shoulder blade – in some parts of the supraspinous and infraspinous fossas, the thickness is less than 1 millimeter and looks … The teres minor arises from the lateral … A scapula’s posterior surface is crossed obliquely by a prominent ridge, the spine, which divides the bone into two concave areas, the supraspinous and infraspinous fossae. But visible at center right. 2. As well as its true anatomical neck, the constriction below the greater and lesser tubercles of the humerus is referred to as its surgical neck due to its tendency to fracture, thus often becoming the focus of surgeons. 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