muscles leg arm

muscles leg arm - Muscles Compartments Anterior compartment...

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Muscles Compartments Anterior compartment Flexors Posterior compartment Extensors
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Muscles of the Shoulder 1. Trapezius o: occipital bone; ligamentum nuchae; and spinous processes of thoracic vertebrae i: clavicle and spine/acromion of scapula a: elevates, retracts, depresses or rotates scapula/or elevates clavicle 2. Deltoid o: clavicle and scapula (acromion and scapular spine) i: deltoid tuberosity of humerus a: abducts arm
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Muscles of the Shoulder 3. Levator scapulae o: transverse processes of first 4 cervical vertebrae i: vertebral border of scapula near superior angle a: elevates scapula 4. Rhomboideus major o: spinous process of upper thoracic vertebrae i: vertebral border of scapula from spine to inferior angle a: elevates and retracts scapula 5. Romboideus minor o: spinous processes of vetebrae C7-T1 i: vertebral border near spine a: elevates and retracts scapula
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Muscles of the Posterior Scapular Region 1. Supraspinatous o: supraspinous fossa of scapula i: greater tubercle of humerus a: abducts arm 2. Infraspinatous o: infraspinous fossa of scapula i: greater tubercle of humerus a: lateral rotation of humerus 3. Teres minor o: lateral border of scapula i: greater tubercle of humerus a: lateral rotation of humerus 4. Teres major: o: inferior angle of scapula i: medial lip of intertubercular groove of humerus a: extension and medially rotation of humerus
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Muscles of the Posterior Scapular Region 5. Long Head of the Triceps Brachii o: infraglenoid tubercle of scapula i: olecranon process of ulna a: extension of the forearm at the elbow joint
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Muscles of the Posterior Scapular Region
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Anterior Wall Posterior Wall Lateral Wall Medial Wall
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Muscles of the Anterior Wall of the Axilla 1. Pectoralis major o: clavicular head-ant. Surface of medial half of clavicle; sternocostal head-ant. surface of sternum; cartilages of ribs 1-7, body of sternum i: lateral lip of intertubercular groove of humerus a: flexes, adducts, medially rotates humerus 2. Subclavius o: first rib i: middle 1/3 rd of clavicle a: depresses shoulder 3. Pectoralis minor o: ant. surfaces of ribs 3 - 5 i: corocoid process of scapula a: depresses and protracts scapula
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Muscles of the Medial Wall of the Axilla 1. Serratus Anterior o: lateral surfacesof ribs 1-9 i: ventral surface of vertebral border of scapula a: braces scapula against thoracic cavity; protracts and rotates shoulder
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Muscles of the Lateral and Posterior Wall of the Axilla 1. Subscapularis o: subscapular fossa of scapula i: lesser tubercle of humerus a: medial rotation of humerus 2. Teres major o: inferior angle of scapula i: medial lip of intertubercular groove of humerus a: extension and medially rotation of humerus 3. Latissimus dorsi o: spinous processes of lower thoracic vertebrae, ribs 10-12, spines of lumbar vertebrae, lumbodorsal fascia i: floor of intertubercular groove of humerus a: extends, adducts, and medially rotates humerus
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Posterior Wall of the Axilla 4. Long Head of the Triceps Brachii
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muscles leg arm - Muscles Compartments Anterior compartment...

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