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17 Cards in this Set
- Front
- Back
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What are the boundaries of the arm?
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medial: ribs, intercostal muscles and serratus ant.
lateral: humerus post: subscapularis, teres major and lat ant.: pect maj and min base: axillary fascia apex: space between the clavicle, scapula and rib 1 |
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What is found in the axilla?
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axillary artery and vein
party of the brachial plexus lymphatics fat |
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All drainage from the axilla lymph nodes empties into the ____________.
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subclavian trunks
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What is the brachial intermuscular septa/
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it is formed by invaginations of teh brachial fascia: the deep fascia that encloses the arm
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The lateral and medial intermuscular septa divides the arm into what two compartments?
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anterior (flexor) and posterior (extensor)
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What does the anterior compartment contain and what is the nerve that supplies all the muscles of th that compartment?
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Consist of a lateral and medial intermuscular septa that divides the arm into:
Anterior (flexor) compartment, contains: Biceps brachii Coracobrachialis Brachialis Brachial artery and vein Musculocutaneous nerve (motor to all muscles of compartment) Median nerve Ulnar nerve |
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What does the post. compartment contain and what is the nerve that supplies all the muscles of th that compartment?
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Posterior (extensor) compartment, contains:
Triceps brachii Radial nerve (motor to all muscles of compartment) Ulnar nerve |
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What are the heads of the triceps?
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Lateral
Long and Medial |
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What is the brachial plexus?
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A network or interjoining, often complex, of nerves, blood vessels, or lymphatic vessels
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wHAT IS the purpose of the brachial plexus?
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Purpose:
Coordination of movement - individual muscles innervated by multiple spinal cord levels. Any spinal cord level can contribute to anterior and posterior musculature. Overlap & redundancy. |
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A plexus contains one nerve that contains axons from ______ spinal cord levels.
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several
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The cervical plexus extends (contains) from ___ to ______.
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C1 - C4
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The Brachial plexus contains what spinal segments?
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C5 - C8 and part of T1
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What spinal segments does the lumbar plexus contain?
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L1 - L4
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What spinal segments does the sacral plexus contain?
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L5 - S5
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What spinal segments does the cocycgeal plexus contain?
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C1 - C4
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From medially to laterally what is the sequence of divisions of the brachial plexus?
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Roots -> trunks -. Divisions _> Cords
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