function of the spine of scapula
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What does the scapula do? Answer   Scapula is the scientific term for shoulder blade. It provides a foundation for the attachments of the muscles that move the arm. There are many functions of the … scapula. It forms part of the shoulder girdle and many (16) muscles are associated with it. The actions that the muscles have on it include: elevation (shrugging), depression (slumping), abduction, adduction, rotation, and tipping.
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The Superficial Back Muscles The muscles on each side form a trapezoid shape. It is the most superficial of all the back muscles. 1  Attachments: Originates the skull, spinous processes of C7-T12 and the ligamentum nuchae. 2  The fibres attach to the clavicle, acromion and the scapula spine.he muscles on each side form a trapezoid shape. It is the most superficial of all the back muscles. 1  Attachments: Originates the skull, spinous processes of C7-T12 and the ligamentum nuchae. 2  The fibres attach to the clavicle, acromion and the scapula spine.
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Shoulder Blade (Scapula) Scapula Anatomy. Picture 2. The right scapula from the front and back side. The shoulder blade is a flat bone with three angles –the upper (superior), bottom (inferior) and lateral (glenoid) angle– and three borders –the superior, lateral (axillary) and medial (vertebral) border (Picture 3) .hey make joints with the upper arm bones (humerus) and collar bones (clavicle) but not with the ribs and spine. Shoulder blade (scapular) pain can be located over the large area of the upper back, though. Picture 1. Scapula location: on both sides of the upper back, under the muscles.
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- Diagnosis and Treatment of Snapping Scapula Syndrome. The scapula (shoulder blade) is an amazing anatomical structure. It is suspended over the ribs between the spine and the arm by only two ligaments. There isn't a real joint between the scapula and the trunk. Three layers of muscle and bursae (plural for bursa) support this structure.
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Chapter 6: The bones of the upper limb The scapula, or shoulder blade (figs. 6-3, 6-4, 6-5, 6-6, 6-7, 6-8, 6-9 and 6-10), is a large, flat, triangular bone that connects the clavicle to the humerus. Its body rests on the superior part of the posterolateral thorax, and the bone includes both a spine that articulates with the acromion and a coracoid process. The scapula is highly mobile.
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Scapula Translation Scapula in English. In anatomy, the scapula (plural scapulae or scapulas) or shoulder blade is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). Like their connected bones the scapulae are paired, with the scapula on the left side of the body being roughly a mirror image of the right scapula.
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Bones & Joints of the Shoulder It forms the back portion of the shoulder girdle. The spine (which is located at the back of the scapula) and the acromion can be readily palpated on a patient. The flat blade of the scapula glides along the back of the chest allowing for extended movement of the arm.
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scapula 1. scapula-either of two flat triangular bones one on each side of the shoulder in human beings. shoulder blade, shoulder bone. bone, os-rigid connective tissue that makes up the skeleton of vertebrates. glenoid cavity, glenoid fossa-the concavity in the head of the scapula that receives the head of the humerus to form the shoulder joint. acromial process, acromion-the outermost point of the spine of the shoulder blade.
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Tendinous arch The scapula forms the back of the shoulder girdle. In humans, it is a flat bone, roughly triangular in shape, placed on a posterolateral aspect of the thoracic cage.our muscles attach to the medial border. Serratus anterior has a long attachment on the anterior lip. Three muscles insert along the posterior lip, the levator scapulae (uppermost), rhomboid minor (middle), and to the rhomboid major (lower middle). Left scapula.
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Tendinous arch In anatomy, the scapula (plural scapulae or scapulas) or shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone).Like their connected bones the scapulae are paired, with the scapula on the left side of the body being roughly a mirror image of the right scapula.he intrinsic muscles of the scapula include the muscles of the rotator cuff-the subscapularis, teres minor, supraspinatus, and infraspinatus. These muscles attach to the surface of the scapula and are responsible for the internal and external rotation of the glenohumeral joint, along with humeral abduction.
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Shoulder It helps stabilize the shoulder’s movements. Scapula: More commonly known as the shoulder blade, the scapula is a flat triangular bone located in the upper back. It connects with the collarbone at the front of the body. Humerus: The largest bone of the arm
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Trapezius Muscle Trapezius Muscle. The trapezius is one of the major muscles of the back and is responsible for moving, rotating, and stabilizing the scapula (shoulder blade) and extending the head at the neck. It is a wide, flat, superficial muscle that covers most of the upper back and the posterior of the neck. Like most other muscles, there are two trapezius muscles – a left and a right trapezius – that are symmetrical and meet at the vertebral column.
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Structures of the Proximal Forelimb and Shoulder The Scapula forms the basis of the shoulder region, providing points of attachment of extrinsic and intrinsic muscles. It is held in place by a synsarcosis of muscles and does not form a conventional articulation with the trunk.
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Winged Scapula SYMPTOMS: The serratus anterior muscle attaches to the medial anterior aspect of the scapula (i.e. it attaches on the side closest to the spine and runs along the side of the scapula that faces the ribcage) and normally anchor the scapula against the rib cage.
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- The trapezius is one of the major muscles of the back and is responsible for moving, rotating, and stabilizing the scapula (shoulder blade) and extending the head at the neck. It is a wide, flat, superficial muscle that covers most of the upper back and the posterior of the neck.
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Levator scapulae muscle Levator scapulae muscle. Anatomy and supply. The levator scapulae is a long muscle of the shoulder girdle. It originates at the transverse processes of the atlas and axis as well as the posterior tubercles of the 3rd-4th cervical vertebrae. It inserts at the superior angle and medial border of the scapula.
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Scapula Bone Anatomy and Muscles The processes. The spinous process or spine of scapula is triangular plate of bone with three borders and two surfaces. It divides the dorsal surface of the scapula into the supraspinous and infraspinous fossae. Its posterior border is called the crest of the spine. The crest has upper and lower lips. The acromion process has two borders, medial and lateral, two surfaces, superior and inferior, and a facet for the clavicle.
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- Trapezius Muscle. The trapezius is one of the major muscles of the back and is responsible for moving, rotating, and stabilizing the scapula (shoulder blade) and extending the head at the neck.It is a wide, flat, superficial muscle that covers most of the upper back and the posterior of the neck.hen other muscles hold the scapula in place, the superior fibers of both trapezius muscles can extend the head at the neck by pulling the occipital bone closer to the scapula. The middle fibers work to retract and adduct the scapula by pulling the shoulder blade closer to the spine.
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Scapula Inserting on the Scapula. 1  Trapezius muscle – it inserts superiorly along the spine, acromion process, and clavicle. 2  Levator scapulae muscle – they insert into the superior angle and medial border (superior to the spine). 3  Rhomboid major muscle – its insertion is the medial border (inferior to the spine).
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Scapula Translation In anatomy, the scapula (plural scapulae or scapulas) or shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone).Like their connected bones the scapulae are paired, with the scapula on the left side of the body being roughly a mirror image of the right scapula.n anatomy, the scapula (plural scapulae or scapulas) or shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). Like their connected bones the scapulae are paired, with the scapula on the left side of the body being roughly a mirror image of the right scapula.
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Levator scapulae muscle The levator scapulae originates from the dorsal tubercles of the transverse processes of cervical vertebrae one to four. The muscle is inserted into medial border of the scapula extending from superior angle to junction of spine and medial border of scapula.he levator scapulae is supplied by the dorsal scapular artery. Normally, this artery has a small branch which passes laterally to the supraspinatus fossa of the scapula, and in a third of cases, this branch supplies the muscle.
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- Palpation of Bony Landmarks. UPPER EXTREMITY. Scapula: 1. Spine – From AC joint palpate across the upper part of the posterior surface of the. scapula. It is a long (3”) thin projection, which runs medial to lateral, at T3 level.
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Winged scapula Winged scapula. A winged scapula (scapula alata) is a skeletal medical condition in which the shoulder blade, or shoulder bone, protrudes from a person’s back in an abnormal position. In rare conditions it has the potential to lead to limited functional activity in the upper extremity to which it is adjacent.
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Where is the scapula? The Scapula is the scientific name for the shoulder bone. It is where your humerus (the most proximal arm bone) connects with your body. If you feel the back of your shoulder, you will notice a protruding line of bone. That it the spine of the scapula.
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scapula Plural scapulae (skāp'yə-lē') or scapulas. Either of two flat, triangular bones forming part of the shoulder. In humans and other primates, the scapulae lie on the upper part of the back on either side of the spine. Also called shoulder blade. See more at skeleton.
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Rhomboid major muscle Rhomboid major muscle. The rhomboid major is a skeletal muscle on the back that connects the scapula with the vertebrae of the spinal column. In human anatomy, it acts together with the rhomboid minor to keep the scapula pressed against thoracic wall and to retract the scapula toward the vertebral column. 1 Structure 1.1 Variation. 1.2 Innervation and blood supply.