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30 Cards in this Set
- Front
- Back
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mammary gland
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- veritcal borders: 2 and 6 ribs
- horizontal borders: lateral border of sternum to the midaxillary line - 2/3 of mammary gland overlies pectoralis muscle - 1/2 overlies the serratus anterior muscle |
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joints of shoulder complex
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- SC (sternoclavicular)
- AC (acromioclvaicular) - GH (glenohumeral) - SC (scapulothoracic) *functional not anatomical* |
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SC joint
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- sternoclavicular
- articulation of the sternal end of the clavicle and the manubrium of the sternum - saddle-type synovial movements - elevation/depression - protraction/retraction - rotation (minimal thus considered biaxial) |
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ligaments and discs of the SC joint
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fibrocartilage disc located in the joint cavity to absorb pressure and provide support
3 ligaments: - sternoclavicular ligament - interclavicular ligament - costoclavicular ligament |
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AC joint
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- acromioclavicular joint
articulation of the acromial end of the clavicle and the acromion process of the scapula - plane type synovial movements - rotation (glides as the scapula rotates) |
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ligaments and discs of the AC joint
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- fibrocartilage disc to absorb pressure and support
- 2 ligaments acromioclavicular ligament coracoclavicular ligament |
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lateral pectoral nerve
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branch of the lateral cord of the brachial plexus
feeds the pectoralis major muscles only roots derive from C5-C7 |
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dorsoscapular nerve
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branch off the C5 root of the brachial plexus
only fed by C5 nerve innervates the rhomboid muscles (both major and minor) and the levator scapulae muscle |
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long thoracic nerve
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branch of the C5-C7 roots of the brachial plexus
innervates the serratus anterior muscles |
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suprascapular nerve
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a branch off the superior trunk of the brachial plexus
fed by the C5-C6 nerves innervates the supraspinatus and infraspinatous muscles of the scapula |
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nerve to the subclavian
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branch off the superior trunk of the brachial plexus
fed by C5-C6 nerves innervates the subclavian muscles |
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upper subscapular nerve
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branch off the posterior cord of the brachial plexus.
has roots in C5-C6 innervates the subscapularis |
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lower subscapular nerve
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branch off the posterior cord of the brachial plexus.
has roots in C5-C6 innervates the subscapularis and the teres major |
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thoracodorsal nerve
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branch off the posterior cord of the brachial plexus.
has roots in C6-C8 innervates the latissimus dorsi |
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medial pectoral nerve
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branch off the medial cord of the brachial plexus.
has roots in C8-T1 innervates the pectoralis major and minor |
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medial brachial cutaneous nerve
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branch off the medial cord of the brachial plexus.
has roots in C8-T1 receives sensory input |
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medial antibrachial cutaneous nerve
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branch off the medial cord of the brachial plexus.
has roots in C8-T1 receives sensory input |
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musculocutaneous nerve
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terminal branch off the lateral cord of the brachial plexus.
innervated from C5-C7 innervates the anterior humerus muscles (i.e. biceps brachii, brachialis, coricobrachilais) |
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radial nerve
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terminal branch of the posterior cord of the brachial plexus
innervated from all roots of the plexus (C5-T1) innervates the entire posterior arm and forearm no hand muscles |
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axillary nerve
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terminal branch of the posterior cord of the brachial plexus
innervated from C5-C6 innervates the teres minor and the deltoid muscles |
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median nerve
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terminal branch off the lateral and medial cords of the brachial plexus
innervated from C6-T1 innervates the 6 1/2 muscles of forearm and 1/2LOAF of the hand -pronator teres -flexor carpi radialis -palmaris longus -flexor digitorum superficialis -flexor digitorum profundus (1/2) - pronator quadratus -lumbricals 1 and 2 -opponens pollicis -abdcutor pollicis -flexor pollicis brevis |
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ulnar nerve
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branch off the medial cord of the brachial plexus
innervated by C8-T1 innervates 1 1/2 muscles of forearm and all the rest of hte muscles of the hand -flexor carpi ulnaris -flexor digitorum profundus (1/2) |
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splenius capitis
-innervation -action |
innervation: dorsal rami of spinal nerves
action: lateral rotation of head to the side of the active muscle together: extends the head and neck |
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splenius cervicus
-innervation -action |
innervation: dorsal rami of spinal nerves
action: lateral rotation of head to the side of the active muscle together: extends the head and neck |
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semispinalis capitis
-innervation -action |
innervation: dorsal rami of spinal nerves
action: extension of head and neck rotates head to opposite side |
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erector spinae
innervation action |
innervation: dorsal rami of spinal nerves
action: alone: laterally flex the vertebral column together: extends the vertebral column |
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trapezius
attachments innervation action |
attachments: superior nuchal line, external occipital proteuberance, spinous processes C7-T12
to the spine of scapula, acromion, lateral 1/3 of clavicle innervation: C3,C4 and accessory nerve CN XI action: upper: elevation of shoulder, upward rotation of scapula middle: retraction (aDduction) of scapula lower: depression of shoulder, upward rotation of scapula |
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latissimus dorsi
attachments innervation action |
attachments:
intertubucular groove of the humerus to the spinous processes C6-T12, thoracolumbar fascia, and iliac crest innervation: thoracodorsal nerve (C6-C8) action: medial rotation of humerus aDduction of humerus extension of humerus |
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rhomboid major
attachments innervation action |
attachments: medial border of the scapula to the T2-T5 spinous processes
innervation: dorsal scapular nerve (C5) action: retraction (aDduction) and downward rotation of scapula |
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rhomboid minor
attachments innervation action |
attachments: medial border of the scapula to the C7-T1 spinous processes
innervation: dorsal scapular nerve (C5) action: retraction (aDduction) and downward rotation of scapula |
