Term
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Definition
clavicular head: anterior surface of medial half of clavicle
sternocostal head: anterior sternum, upper six costal cartilages, aponeurosis of external oblique muscle |
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Term
| Pectoralis major: insertion |
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Definition
| lateral lip of intertubercular sulcus of humerus (crest of greater tubercle) |
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Term
| Pectoralis major: innervation |
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Definition
later and medial pectoral nn.
(clavicular head: C5,C6
sternocostal head: C7,C8,T1) |
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Term
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Definition
| adducts, medially rotates, flexes/extends arm |
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Term
| Pectoralis major: blood supply |
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Definition
pectoral branch of thoracoacromial a.,
perforating branches of internal thoracic a. |
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Term
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Definition
| anterior surface of ribs III-V |
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Term
| Pectoralis minor: insertion |
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Definition
| medial surface of coracoid process |
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Term
| Pectoralis minor: innervation |
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Definition
| medial pectoral n. (C8,T1) |
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Term
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Definition
| stabilizes scapula by pulling it inferiorly and anteriorly |
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Term
| Pectoralis minor: blood supply |
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Definition
thoracoacromial a.,
intercostal branches of internal thoracic a. |
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Term
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Definition
| junction of rib I and its costal cartilage |
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Term
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Definition
| groove on inferior surface of middle 1/3 of clavicle |
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Term
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Definition
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Term
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Definition
| depresses clavicle down and forward |
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Term
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Definition
| clavicular branch of thoracoacromial a. |
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Term
| Serratus anterior: origin |
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Definition
| external surfaces of lateral parts of ribs I-VIII |
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Term
| Serratus anterior: insertion |
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Definition
| anterior surface of medial border of scapula |
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Term
| Serratus anterior: innervation |
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Definition
| long thoracic n. (C5,C6,C7) |
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Term
| Serratus anterior: action |
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Definition
abducts and protracts scaupla, rotates it so that glenoid cavity faces upwards;
also holds scapula firmly against thoracic wall |
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Term
| Serratus anterior: blood supply |
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Definition
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