619 Final Flashcards
What are the borders of the venous triangle Costoclavicular space :
1. Ant/Sup
2. Post
3. Inferior
- Subclavius m.
- Anterior Scalene m.
- 1st rib
Which ligaments protect the integrity of the acromioclavicular ?
- A (Prevents Ant/Post Displacement)
- C (Prevents sup/inf Displacement x2 ligaments)
- C (Additional Stability)
- Acromioclavicular
- Coracoclavicular (Conoid & Trapezoid)
- Coracoacromial
Which structures are typically damaged in a shoulder separation?
Acromioclavicular and Coracoclavicular ligaments are damaged or torn.
What structures are responsible for displacement of the clavicle following a fracture?
-Sternocleidomastoid: Upward angulation sternal fragment
-Pectoralis Major: Posterior Displacement medial end of acromial fragment
-Trapezius & gravity: Depression of acromial fragment.
What vessels pass immediately below the clavicle?
Subclavian a./v.
Pathway of pulmonary vs basal a. embolism from Subclavian a./v. damage….
L. Subclavian V. –>L. Brachiocephalic V.–>Superior Vena Cava–>R. Atrium–>R. Ventricle–> Pulmonary aa.
L. Subclavian a.–> (Retrograde) Vertebral a.–>Basilar a.
What portion(s) of the brachial plexus is at risk for paresthesia from clavicular fracture?
Medial cord
-Ulnar n. (Sensation to medial hand)
-Median n. (Sensation to lateral palmar aspect of hand)
-Medial brachial/antebrachial cutaneous n. (Inferomedial arm/medial forearm)
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