Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
what is in intercostal spaces?
|
IC muscles
IC VAN |
|
|
costal groove
|
along inferior margin of rib
contains IC VAN |
|
|
sternal angle (angle of louis)
|
at rib 2
where manubrium & sternum meet |
|
|
thoracic cavities
|
pleural (2)
mediastinum (superior, inferior-anterior, middle, posterior) |
|
|
pleural cavities
|
lined by mesothelial membrane - pleura
parietal & visceral |
|
|
pleural space
|
between parietal & visceral pleura
potential space |
|
|
superior mediastinum
(loc & contents) |
above T4/T4 between pleural cavities
thymus, great vessels, trachea, esophagus, nerves |
|
|
inferior mediastinum
(location and subdivisions) |
below T4/T5 between pleural cavities
anterior, middle, posterior |
|
|
contents of anterior mediastinum (inferior)
|
thymus, fat, small vessels, lymph nodes
|
|
|
contents of middle mediastinum (inferior)
pericardial sac/cavity |
heart, pericardium, origins of great vessels, smaller vasculature & nerves
|
|
|
contents of posterior mediastinum (inferior)
|
aorta, thoracic duct, azygos & hemiazygos veins, esophagus & its plexus, sympathetic trunks, splachnic nerves
|
|
|
fibrous pericardium
|
external
continuous w/ adventitia of great vessels & attached to central tendon of diaphragm & sternum supplied by internal thoracic, inferior phrenic, and aorta pain conveyed by general sensory fibers of phrenic nerve |
|
|
serous pericardium
|
internal
parietal & visceral (epicardium) layers |
|
|
pericardial sinuses
|
transverse pericardial sinus (separates arteries from veins)
oblique pericardial sinus (formed by reflection onto pulmonary veins of heart) |
|
|
pleural cavity
|
potential space b/t parietal & visceral pleura around lungs
|
|
|
parietal pleura
|
walls of pleural cavity
-innervated by gen sensory (pain) -costal, diaphragmatic, mediastinal, cervical parts -reflects off mediastinum at hilum to enclose airway/vessels as root of lung |
|
|
visceral pleura
|
adheres to lung
-innervated by visceral sensory (no pain) |
|
|
pleural recesses
(costomediastinal, costodiaphragmatic) |
where lungs don't fill cavity and 2 layers of parietal pleura are opposed
-expansion of lungs only during forced inspiration |
|
|
posterior mediastinum
(contents) |
aorta, thoracic duct, azygos & hemiazygos veins, esophagus & plexus, sym trunks, splanchnic nerves
|
|
|
esophagus
|
descends on anterior vert bodies
innervated by sym & parasym nerves: L vagus-->anterior vagal trunk, R vagus-->posterior vagal trunk |
|
|
thoracic duct
|
numerous valves
collects lymph from RLQ, LLQ, LUQ located b/t aorta & azygos vein empties into junction of L internal jugular & subclavian veins |
