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35 Cards in this Set
- Front
- Back
- 3rd side (hint)
Deltoid-origin and insertion |
Origin: lateral 1/3 of clavicle, acromion, spine of scapula
Insertion- deltoid tuberosity |
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Deltoid- action and nerve |
Action: All fibers:abducts Posterior: extension, laterally rotate, horizontally abducts the shoulder Anterior: flexion, medially rotate, adduction
Nerve: Axillary |
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Latissimus Dorsi- origin and insertion |
Origin- spinous process of T7-L5 Last 3 or 4 ribs Thoracolumbar aponeurosis Posterior iliac crest Inferior angle of scapula
Insertion: crest of the lesser tubercle (lateral) "intertubercular groove" |
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Latissimus Dorsi- action and nerve innervation |
Action- medial rotation, adduction, extension
Nerve: thoracodorsal |
Secondary muscle of respiration |
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Teres Major- origin and insertion |
Origin: Dorsal surfaces of inferior angle and lower 1/3 of lateral (axillary) border of scapula
Insertion: crest of the lesser tubercle (medial) |
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Teres Major- action and nerve |
Action: Extension, adduct, medially rotate humerus
Nerve: Subscapular nerve |
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Supraspinatus- origin and insertion |
Origin: Supraspinous fossa of scapula
Insertion: Greater tubercle (superior aspect) |
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Supraspinatous- action and nerve |
Action: Abducts the first 15-20 degrees, stabilizes GH joint
Nerve: suprascapular |
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Levator Scapula- action and nerve |
Action: unilaterally- elevate, downwardly rotate, laterally flex and rotate (ipsilaterally) head and neck Bilaterally- extend
Nerve: Dorsal scapular |
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Infraspinatus- origin and insertion |
Origin: infraspinous fossa
Insertion: Greater tubercle (superior, posterior) |
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Infraspinatus- action and nerve |
Action: laterally rotates, abducts (adducts lower fibers), extends
Nerve: Suprascapular |
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Teres Minor- origin and insertion |
Origin: superior half of lateral border of scapula
Insertion: greater tubercle (posterior, inferior) |
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Teres Minor- action and nerve |
Action: laterally rotate, adduct, extension Stability of GH joint
Nerve: Axillary |
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Subscapularis- origin and insertion |
Origin: Subscapular fossa
Insertion: lesser tubercle |
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Subscapularis- action and nerve |
Action: Medially rotates (adduct a lil) Stability of GH joint
Nerve: Subscapular |
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Rhomboid Major & Minor- origin and insertion |
Origin: major- Spinous processes T2-T5 Minor- Spinous processes C7-T1
Insertion: medial border between spine and inferior angle |
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Rhomboid Major&Minor- action and nerve |
Action: retraction, adduct, elevate, downwardly rotate scapula
Nerve: dorsal scapular |
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Levator scapula- origin and insertion |
Origin: transverse processes C1-C4
Insertion: superior angle of scapula |
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Trapezius- origin and insertion |
Origin: EOP, medial portion of superior nuchal line, ligamentum nuchae, C7-T12
Insertion: Lateral 1/3 of clavicle, acromion, spine of scapula |
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Trapezius- action and nerve |
Action: Upper fibers- extends (bilaterally) Extends, laterally flex, rotate (unilateral), Elevate, upwardly rotate scapula Middle fibers- Adduct scapula, stabilizes scapula Lower fibers- Depress, upwardly rotate scapula
Nerve: spinal accessory (CN XI) |
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Serratus Anterior- origin and insertion |
Origin- surfaces of upper 8 or 9 ribs
Insertion- anterior surface of medial border of scapula |
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Serratus anterior- actions and nerve |
Actions- protraction (abduct), depress and rotate scapula, holds medial border of scapula against rib cage
Nerve- long thoracic |
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Serratus anterior- actions and nerve |
Actions- protraction (abduct), depress and rotate scapula, holds medial border of scapula against rib cage
Nerve- long thoracic |
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Pectoralis Major- origin and insertion |
Origin- C-shape. Medial half of clavicle, sternum, cartilage of ribs 1-6
Insertion- crest of the greater tubercle |
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Pectoralis Major- action and nerve |
Origin- as whole: abduct, medially rotate Upper fibers: flex, medial rotation, horizontally adduct Lower fibers: extension, adduct
Nerve- pectoral nerves (medial and lateral) |
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Triceps brachii- origin and insertion |
Long head: infraglenoid tubercle Lateral: posterior portion Medial: posterior portion below radium groove Insertion: olecranon |
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Triceps- action and innervation |
Actions: extends the elbow Long head, adducts shoulder joint Innervation- radial nerve (c 06- 08) |
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Coracobrachii- origin and insertion |
Origin: Coracoid process Insertion: medial surface of midshaft of humerous |
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Coracobrachii- action and innervation |
Action: flexion and adduction of shoulder Innervation: musculocutaneous |
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Biceps brachii- origin and insertion |
Origin: short head- coracoid process Long head: supraglenoid tubercle Insertion: radial tuberosity and bicipital aporneurosis |
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Biceps- actions and innervation |
Actions: flexion of elbow and shoulder joint, supination Innervation: musculocutaneous |
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Pectoralis minor- origin and insertion |
Origin: 3-5 ribs Insertion: coracoid process |
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Pectoralis minor- actions and innervation |
Actions: protraction (abduct scapula), depress, downwardly rotate and tilt scapula anteriorly Innervation: medial pectoral |
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Subclavius-origin and insertion |
Origin: between 1st rib Insertion: inferior, medial aspect of clavicle |
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Subclavius- actions and innervation |
Actions: draws clavicle down and forward, elevated 1st rib. Stabilizes SC joint Innervation: 5th and 6th cervical nerve |
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