Anatomy Final test

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Author:
melissauri
ID:
227966
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Anatomy Final test
Updated:
2013-07-23 21:09:35
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Final test
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Final test
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  1. angle of Louis
    • sternal angle where it meets body
    • approx T4

    • Rib 2
    • Aortic arch
    • trachea bifurbication
    • pulmonary trunk bifurbication
    • left recurrent laryngeal
    • ligamentum arteriosum
    • azygoes drains to SVC
    • nerves
    • thoracic duct
  2. subcostal space
    space below 12th rib
  3. external intercostal muscle
    • down and in orientation
    • elevate ribs during inspiration
  4. internal intercostal muscles
    • down and out orientation
    • depress ribs during expiration
  5. innermost intercostal muscles
    vertical orientation-found in lateral thoracic wall
  6. thoracic wall muscles
    sucostal muscles-inside posterior ribs. depress ribs

    transversus thoracis-extends from lower sternum and xiphoid to costal cartilages 2-6
  7. Where do anterior intercostal arteries come from?
    • 1-6 from internal thoracic artery
    • 7-11 from musculophrenic artery
  8. where do posterior intercostal arteries come from?
    • 1-2 from superior thoracic arteries
    • 2-11 from thoracic aorta
  9. where do anterior intercostal veins drain?
    to internal thoracic veins that goes to brachiocephalic veins
  10. where do posterior intercostal veins drain?
    to the azygos vein
  11. what borders the inferior thoracic aperture?
    • T12 posteriorly
    • 11 and 12 ribs laterally
    • costal cartilages and costal margin
    • xiphoid anteriorly
    • sealed off inferiorly by the diaphragm
  12. structures passing rhrough diaphragm?
    • aorta at T12
    • esophagus at T10
  13. Mediastinum is divided into?
    superior mediastinum-area above t4/t5

    • inferior mediastinum-area below t4/t5 and bw pleaural cavities
    •       divided into anterior, middle (heart), and posterior mediastinum
  14. pericardial layers
    • fibrous and parietal
    • pericardial cavity
    • visceral (epicardium)
    • myocardium
  15. sympathetic
    thoracolumbar division

    pregangionic nerves originate in the gray matter of spinal cord segments T1-L2

    its CATABOLIC of energy expending system that enables our body to deal with stress
  16. parasympathetic
    craniosacral division

    preganglionic nerves originate in the brainstem and the gray matter of spinal cord segments s2-s4

    anabolic or energy conserving system

    increases GI motility. There is NO parasympathetics in the skin or the limbs
  17. sympathetic chain
    means by which sympathetics enter spinal nerves above t1 and below l2

    two parallel nerve cords extending on ea side of the vertebral column\

    only the sympathetic division of the ANS utilizes this chain
  18. vagus nerve
    provides parasympathetic innervation to heart (slows it down)
  19. right coronary artery
    • branch to SAnode
    • marginal branch
    • posterior interventricular artery
  20. left coronary artery
    • anterior interventricular artery
    • circumflex branch
    • marginal branch

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