ANAT 1625 Lab List #3 for Midterm

ANAT 1625 Lab List #3 for Midterm - 1 1625 Lab Mid Term...

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1625 Lab / Mid Term Exam Strctures to be observed in wet / dry lab Muscles of the anterior thoracic wall 1. pectoralis major ( superficial muscle ) 2. pectoralis minor ( deep to pectoralis major ) 3. subclavius ( inferior to the clavicle ) 4. external intercostal ( superficial muscle, fibers run downwards and medial ) 5. external / anterior intercostal membrane ( continuation of the external intercostal muscle from costochondral junction to sternum ) 6. internal intercostal ( deep to external intercostal fibers run downwards and backwards) 7. innermost intercostal ( deep to the internal intercostal ) 8. transversus thoracis / sternocostalis ( posterior surface of the sternum ) 9. serratus anterior ( side of the chest wall, attaches to the ribs # 1 to 8 ) Female 1. breast 2. nipple 3. areola 4. lactiferous ducts 5. mammary gland 6. suspensory ligament of the breast 7. retromammary space Neurovascular bundle 1. anterior cutaneous neurovascular bundles ( branches of the anterior intercostal neurovascular bundles ) 2. lateral cutaneous neurovascular bundles ( branches of the posterior intercostal neurovascular bundles ) Anterior wall of the thorax 1. pectoralis major ( superficial muscle of the chest wall ) 2. deltoid ( forms the bulk of the shoulder ) 3. deltopectoral triangle ( between pectoralis major, deltoid and clavicle ) 4. cephalic vein ( superficial vein, runs in the delto - pectoral groove ) Deltopectoral triangle 1. clavipectoral fascia ( deep to the pectoralis major, encloses the subclavius and pectoralis minor 2. suspensory ligament of the axilla 3. subclavius ( inferior to the clavicle ) 4. pectoralis minor ( deep to the pectoralis major ) 5. lateral pectoral nerve ( branch of the lateral cord of brachial plexus ) 6. medial pectoral nerve ( branch of the medial cord of brachial plexus ) 7. cephalic vein ( runs in the delto - petoral grove ) 1
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8. axillary vein ( runs medial to the axillary artery ) 9. thoracoacromial trunk / artery ( branch of axillary artery ) Thoracoacromial trunk / artery divides into four branches a) pectoral branch b) deltoid branch c) acromial branch d) clavicular branch Intercostal structures 1. external intercostal muscle ( superficial muscle, fibers run downwards and medial ) 2. internal intercostal muscle ( deep to external intercostal fibers run downwards and backwards ) 3. innermost intercostal muscle ( deep to the ineternal intercostal ) 4. intercostal vein, artery and nerve 5. collateral intercostal vein, artery and nerve Internal thoracic artery ( branch of subclavian artery, runs deep to costal cartilages ) Superior epigastric artery ( medial terminal branch of internal thoracic artery ) Musculophrenic artery ( lateral terminal branch of internal thoracic artery ) Internal thoracic vein ( runs with the internal thoracic artery ) Endothoraci fascia Subclavian artery Runs deep to the subclavian vein Intercostal vein, artery and nerve ( run in the costal groove ) Parietal pleura 1. costal parietal pleura ( covers the outer surface ) 2. mediastinal parietal pleura ( covers the medial surface ) 3. diaphragmatic parietal pleura ( covers the base ) 4. cervical parietal pleura ( covers the apex ) Visceral pleura
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