Anatomy Final test
Card Set Information
Anatomy Final test
angle of Louis
sternal angle where it meets body
pulmonary trunk bifurbication
left recurrent laryngeal
azygoes drains to SVC
space below 12th rib
external intercostal muscle
down and in orientation
elevate ribs during inspiration
internal intercostal muscles
down and out orientation
depress ribs during expiration
innermost intercostal muscles
vertical orientation-found in lateral thoracic wall
thoracic wall muscles
sucostal muscles-inside posterior ribs. depress ribs
transversus thoracis-extends from lower sternum and xiphoid to costal cartilages 2-6
Where do anterior intercostal arteries come from?
1-6 from internal thoracic artery
7-11 from musculophrenic artery
where do posterior intercostal arteries come from?
1-2 from superior thoracic arteries
2-11 from thoracic aorta
where do anterior intercostal veins drain?
to internal thoracic veins that goes to brachiocephalic veins
where do posterior intercostal veins drain?
to the azygos vein
what borders the inferior thoracic aperture?
11 and 12 ribs laterally
costal cartilages and costal margin
sealed off inferiorly by the diaphragm
structures passing rhrough diaphragm?
aorta at T12
esophagus at T10
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
fibrous and parietal
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
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
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
provides parasympathetic innervation to heart (slows it down)
right coronary artery
branch to SAnode
posterior interventricular artery
left coronary artery
anterior interventricular artery