origin and insertion of scapular muscles

Supraspinatus m. Supraspinaous Fossa Scapular Cartilage and Spine Greater and Lesser Tubercles of Humerus Suprascapular n. Extends shoulder Stabilizes shoulder 3. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Serratus Anterior Origin: Fleshy slips from the outer surface of upper 8 or 9 ribs Insertion: Costal aspect of medial margin of the scapula Other actions: Protracts and stabilizes scapula, assists in upward rotation. Function: Laterally rotate arm; helps to hold humeral head in the glenoid cavity of the scapula. Cram.com makes it easy to get the grade you want! rotation, O: TPs of C6-T1 (post. Don’t let shoulders tilt forward — keep them down and back. It inserts on lowest impression on the greater tubercle of the humerus. Origin and insertion. Let’s stay with the biceps, The bicep has two (bi = two) origins, one high on the humerus, the other on the scapula. Subscapular fossa. Driving through both hands evenly, push the sternum away from the wall until both scapula open up and your upper back is slightly rounded, then repeat. The levator scapulae muscle arises from the posterior tubercle of transverse process of cervical vertebrae(C1-C4). The above drawing of the insertion on the clavicle might help visualize this information (blue is the insertion). This is one of the five muscles that are grouped as muscles of the scapula, or sometimes as muscles that moor the scapula. If not, you should definitely read this lesson! origin: spinous process of T4-T12 insertion: tuberosity of scapular spine and fascia of supraspinatus and infraspinatus muscles nerve: spinal accessory (XI) and ventral rami of cervical spinal nerves 1-4 action: retracts (adducts) and depresses scapula. Muscles of neck. PLAY. Nerve Supply: Suprascapular nerve (C5 and C6) STUDY. Jan 8, 2015 - Shoulder blade bone parts, ligaments, joints, muscles (origin, insertion, function) with pictures Muscle Origin Insertion Action Innervation Artery Notes; trapezius: medial third of the superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous processes of vertebrae C7-T12: lateral third of the clavicle; acromion and spine of the scapula Gravity. Study Flashcards On muscle origin, insertion, action quiz 1 at Cram.com. Origin: Anterior part: Anterior border of lateral 1/3 rd … O: SPs C6-T1, Ligamentum nuchae. b. Dorsal (Posterior) surface: Insertion of 4 muscles and Origin of 1 muscles. It is supplied by suprascapular nerve (C5, C6). Your email address will not be published. Take the wrist of the extended, lifted arm with the opposite hand. Stabilisation of shoulder joint. This is one of the five muscles that are grouped as muscles of the scapula, or sometimes as muscles that moor the scapula. Anatomynote.com found Muscle Origin And Insertion Gross Anatomy from plenty of anatomical … It acts as – Powerful abductors of the arm at the shoulder joint from beginning to 90′. The infraspinatus is one of the four rotator cuff muscles. Match. | A: retraction and stabilization of scapula. Sign in Register; Hide. Muscles of the Scapular Region : Muscle. – The posterior fibres are extensors and lateral rotators of the arm. Innervation. Scapula Anatomy. It originates from medial two-third of the supraspinous fossa of the scapula, It inserts in the upper impression on the greater tubercle of the humerus, It is supplied by Suprascapular nerve (C5, C6), Along with other scapular muscles it steadies the head of humerus during arm movements. Rhomboid minor muscle – it inserts above the scapular spine. O: SPs T2-5. A. a. Deltoid muscle: It is a triangular (inverted delta) shaped muscle that forms the rounded contour of the shoulder. Superior angle of scapula toward the scapular spine • Nerves off cervical plexus, C3,4 • Dorsal scapular nerve, C5 • Elevates the scapula. Upper and lower subscapular nerves. Origin: Innervation of Levator Scapulae Muscle: Dorsal scapular nerve (C5) and ventral primary rami of C3 and C4. Supraspinous fossa. M. splenius. These muscles attach to the scapular surface and assist with abduction and external and internal rotation of the glenohumeral joint. Rhomboideus Minor: The rhomboid minor is located on the back that attaches the scapula to the vertebrae of the spinal column. It originates from medial two-thirds of the subscapular fossa. MUSCLE ORIGIN Rhomboid major Posterior Spinous surface of … Do you know much about the origin, insertion, and action of the levator scapulae, a muscle that is located on the back sides of the neck? Medial surface of scapular cartilage. Levator scapulae . Scapular Region Muscles - ( Origin, Insertion, Neve Supply, Actions muscle . Blood supply to the levator scapulae is carried out by the descending scapular artery. When the muscle contracts and shortens it pulls on the insertion points on the radius causing the elbow to flex. Dorsal branches of cervical & thoracic nn. Stabilisation of shoulder joint. edge). It is supplied by upper and lower subscapular nerves (c5, c6). Deltoideus m. Scapula spine Caudal Border of Scapula Deltoid Tuberosity Axillary n. Flexes shoulder 2. Fixation of thoracic limb, elevates scapula & draws it forward. Key facts about the latissimus dorsi muscle Origin Vertebral part: Spinous processes of vertebrae T7-T12, Thoracolumbar fascia Iliac part: Posterior third of crest of ilium Costal part: Ribs 9-12 Scapular part: Inferior angle of scapula Insertion Intertubercular sulcus of the humerus, between pectoralis major and teres major muscles Stabilisation of shoulder joint. Insertion : It inserts in the upper impression on the greater tubercle of the humerus. muscle teres minor origin lateral border of scapular supra spinatus supra spinous fossa of scapula infra spinatus infra spinous fossa of scapula subscapularis. Function Deep muscle of the canine. Learn. Origin: (proximal attachments) a. Transverse processes of the C1-C4. Learn the attachments, innervations and functions of the levator scapulae even faster with this trunk wall muscle anatomy reference chart.. An Overview of the Levator Scapulae Muscle O: occipital protuberance; SPs C7- all T vertebrae | I: lateral 1/3 of post. It inserts on the medial lip of the bicipital groove of the humerus. Quickly memorize the terms, phrases and much more. ... as well as the superior crest of the scapular spine. innervation. Nerve Supply : It is supplied by Suprascapular nerve (C5, C6) Action : Along with other scapular muscles it steadies the head of humerus during arm movements. Write. Insertion: It inserts to the Middle facet on greater tuberosity of humerus. The rhomboid minor arises from the inferior border of the nuchal ligament, from the spinous processes of the seventh cervical and first thoracic vertebrae, and from the intervening supraspinous ligaments.. Origin: Infraspinatus originated from Infraspinous fossa of the scapula. insertion. Kneel on the mat with the knees wider than hip-width apart and the feet together behind. tubercles). Spinous processes of vT1-vT3. Subscapular fossa. Upper and lower subscapular nerves. | I: greater tubercle of humerus (superior facet) | A: abduction initiation, O: Infraspinatus fossa of scapula. Try this amazing Origin, Insertion, And Action Of Muscles Quiz quiz which has been attempted 10390 times by avid quiz takers. Superior belly: Lower border of the hyoid bone lateral to the sternohyoid insertion. The muscle origin is the fixed attachment, while the insertion moves with contraction. It is one component of the muscular system of the shoulder. MUSCLE ORIGIN INSERTION Rhomboi d minor Lower end of ligamentum nuchae and spinous processes of CVII and TI vertebrae Posterior surface of Dorsal medial border scapular Elevates and of scapula at nerve [C4,C5] retracts the the root of scapula the spine of the scapula 10/02/2014 INNERVATION ACTION 19 20. Academic year. Tim Coleman. The above drawings of the origin and insertion might help visualize this information (red is the origin and blue is the insertion). Highest tubercle of greater tubercle. Lesser tubercle of humerus. | I: Medial border of scapula (below base of spine). origin. Supraspinatus. Cram.com makes it easy to get the grade you want! The subscapularis muscle is one of the most frequently used muscles of the shoulder joint. – Lower lip of the crest of the spine of the scapula. | A: medial elevation of scapula, inferior rotation of glenoid cavity. Lesser tubercle of humerus. University. Terms in this set (12) Deltoid Origin Insertion Action. It should not feel at all painful. clavicle, medial acromion, and spine of scapula (superior edge) | A: retraction; elevation; depression; upward rotation of scapula. Like their connected bones, the scapulae are paired, with each scapula on either side of the body being roughly a mirror image of the other. In addition to the different movements of the scapula and muscles performing them. Created by. Blood Supply. The scapula provides attachment for several groups of muscles. January 31, 2020Physiotherapy_Clinic0 Comments. It acts as medial rotator and adductor of arm. Stand in a doorway, holding both sides of the frame at or just below shoulder height. Us and visit our website: www.anatomynote.com fixation of thoracic limb, elevates &! Attachment, while the insertion moves with contraction most frequently used muscles the... The levator scapulae is carried out by the dorsal surface of the dog: muscle Origins and Insertions 1.... 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