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20 Cards in this Set
- Front
- Back
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Pectoralis major
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- lateral and medial pectoral nn.
- clavicular head flexes humerus - adducts and MEDIALLY rotates humerus - draws scapula anteriorly and inferiorly -sternocostal head extends humerus |
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Pectoralis minor
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- medial pectoral n. (C8, T1)
- stabilizes and protracts scapula |
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Subclavius
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- nerve to subclavius (C5,6)
- anchors and depresses clavicle |
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Serratus anterior
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- long thoracic n. (C5,6,7)
- protracts scapula - holds scapula against thoracic wall |
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Dorsal scapular n.
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innervates the rhomboids and sometimes levator scapulae
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Long thoracic n.
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innervates serratus anterior
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Nerve to subclavius
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innervates subclavius and the sternoclavicular joint
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Suprascapular n.
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innervates supraspinatus, infraspinatus, and the shoulder joint
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Lateral pectoral n.
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pierces clavipectoral fascia to directly innervate pectoralis major
it also communicates w/ the medial pectoral n. |
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Medial pectoral n.
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pierces and supplies pectoralis major and then pectoralis minor
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Medial brachial cutaneous n.
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communicates with the intercostobrachial n and innervates the skin on the medial side of the arm
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Medial antebrachial cutaneous n.
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innervates the medial aspect of the forearm
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Upper subscapular n.
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innervates subscapularis
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Thoracodorsal n.
(Middle subscapular n.) |
innervates latissimus dorsi
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Lower subscapular n.
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innervates subscapularis and teres major
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Musculocutaneous n.
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pierces and innervates coracobrachialis, biceps brachii, brachialis
continues as the lateral antebrachial cutaneous n. |
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Ulnar n.
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innervates the medial 1/2 of extensor digitorum profundus and flexor carpi ulnaris, most intrinsic hand muscles, and skin over palm and medial 1.5 digits
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Median n.
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innervates most flexors of the forearm, several muscles in the hand, and skin over palm and lateral 3.5 digits
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Axillary n.
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passes through quadrangular space w/ posterior circumflex humeral artery
innervates teres minor, deltoid, shoulder joint, and skin of the lower part of the deltoid |
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Radial n.
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innervates ALL muscles of the posterior arm and forearm, and the skin on the posterior arm, forearm, and hand
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