Term
| What is the origin of the pectoralis major m.? |
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Definition
Clavicular Head: medial half of clavicle; sternocostal head: sternum, costal cartilages, aponeurosis of external abdominis oblique muscle. |
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Term
| What is the origin of the pectoralis minor m.? |
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Definition
| Anterior aspect of 3rd-5th ribs. |
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Term
| What is the origin of the subclavius m.? |
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Definition
| Junction of 1st rib and costal cartilages. |
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Term
| What spinal nerves innervate the pectoralis minor m.? |
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Definition
C8-T1 (Medial pectoral n.) |
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Term
| What is the insertion of the subclavius m.? |
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Definition
Inferior surface of clavicle. |
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Term
What is the insertion of the pectoralis major m.? |
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Definition
| Lateral lip of the intertubercular groove of the humerus. |
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Term
| What is the insertion of the pectoralis minor m.? |
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Definition
Coracoid process of scapula. |
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Term
| What spinal nerves innervate the subclavius m.? |
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Definition
| C5-C6 (Nerve to subclavius) |
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Term
| What is the action of the pectoralis major m.? |
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Definition
Flexes, ADducts, and medially rotates the arm. |
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Term
| What is the action of the subclavius m.? |
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Definition
Draws clavicle inferiorly and anteriorly. |
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Term
| What is the action of the pectoralis minor m.? |
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Definition
| Draws scapula inferiorly and anteriorly; (elevates ribs.) |
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Term
| What spinal nerves innervate the pectoralis major m.? |
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Definition
C5, C6, C7 (lateral pectoral n.) C8-T1 (medial pectoral n.) |
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Term
| What innervates the mammary glands? |
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Definition
| intercostal nn. (esp. 4th-6th) |
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Term
| What is the origin of the Trapezius m? |
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Definition
| Superior nuchal line, external occipital protuberance, ligamentum nuchae, 7th cervical and all thoracic spinous processes. |
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Term
| What is the origin of the latissimus dorsi? |
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Definition
| Spinous processes of all vertebrae below T6, thoracolumbar fascia, crest of ilium and lower 3 or 4 ribs. |
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Term
| What is the origin of Levator Scapulae? |
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Definition
| Transverse processes of C1-C4 |
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Term
What is the origin of Rhomboid Minor? |
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Definition
| Spinous processes of C7-T1 |
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Term
What is the origin of the Rhomboid Major? |
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Definition
| Spinous processes of T2-T5 |
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Term
| What is the origin of the serratus posterior superior? |
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Definition
| Ligamentum nuchae, C7-T3 spinous processes. |
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Term
| What is the origin of the serratus posterior inferior? |
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Definition
| T11-L2 spinous processes. |
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Term
| What is the insertion of the Trapezius? |
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Definition
| spine of scapula, acromion, and lateral 1/3 of posterior border of clavicle |
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Term
| What is the insertion of the latissimus dorsi? |
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Definition
| floor of the intertubercular groove of the humerus |
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Term
| What is the insertion of the levator scapulae? |
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Definition
| medial border of scapula superior to the spine of the scapula |
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Term
| What is the insertion of the rhomboid minor? |
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Definition
| the root of the spine of the scapula |
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Term
| What is the insertion of the rhomboid major? |
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Definition
| the medial surface of the scapula inferior to the spine of the scapula |
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Term
| What is the insertion, action and innervation of the serratus posterior superior? |
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Definition
| 2nd to 5th ribs, inspiratory muscle of respiration, intercostal nerves T2-T5 |
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Term
| What is the insertion, action, and innervation of serratus posterior inferior? |
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Definition
| 9th-12th ribs, inspiratory muscle of respiration, intercostal nn T9-T12 |
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Term
| What is the action and innervation of the Trapezius? |
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Definition
| Adducts and rotates scapula, upper part elevates scapula, lower part depresses scapula; spinal accessory n. (CN XI), twigs from C3-C4 |
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Term
| What is the action and innervation of the latissimus dorsi? |
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Definition
extends, adducts, and rotates arm medially; thoracodorsal n, C6-C8 |
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Term
| What is the action and innervation of the levator scapulae? |
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Definition
| elevates scapula and inclines head laterally; Dorsal scapular n. C5 |
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Term
| What is the action and innervation of the rhomboid minor? |
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Definition
| adducts scapula; dorsal scapular n. C5 |
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Term
| what is the action and innervation of the rhomboid major? |
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Definition
| adducts scapula; dorsal scapular n. |
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