Thorax Flashcards
what is the thorax lined with
simple squamous epithelium + areolar connective tissue
what are the two layers of the thorax
parietal serosa
visceral serosa
what is the outer layer of the thorax
parietal serosa
what is the inner layer of the thorax
visceral serosa
what is found between the 2 layers of the thorax
serous fluid is vlood filtrate and secretion by 2 layer of membrane
what does this serous cavity of serous fludid allow
for the organs to move with reduced friction
what is pleural
surrounds lungs
what is pericardium
surroudn heart slightly modified
what is peritoneal
surrounds some abdominal organ
what is the central compartment of the toracic cavity
mediastinum
what is the trachea
2.5 cm dia
10-16 cm long
rings of hyaline cartialge
where is the bifurcate of the trachea
T5 level
what is the carina
this is at the bifurcate and is the most sensitive area of trachea and triggers cough reglex
what is the primary bronchi
bifurcation of trachea
cartilage rings
posterio to pulmonary vessel
right is wider, vertical and shorter
wht is the secondary bronchi
each primary bronchi divides
how many divides doe the right lung have
3
how many divides doe the left lung have
2
how many divides are there
23
what is the location of the lungs
apex posteriro to clavicel
base lays on diaphragm
costal surface
how many lobes does left lung have
2
how many lobes does right lung have
3
what is the hilum
medial indentation where the parietal and visceral pleura meet
what is the root of the lung
structures enter and leaving each lung
how many pulmonary vien are there
2 which carries o rich blood from each lung to heart
how many pulmonary artery
1 carries o poor blood to each lung
what creates the brachiocephalic veins
IJV and subclavian
where is the superior vena cava
superior mediastinum right side
where does the superior vena cava receive blood
from regions above diaphragm
what forms the superior vena cava
right and left brachicephalic veins
where does the superior vena cava emptie
into right atrium
where can the inferiro vena cava be found
inferiro mediastinum runs thgouh abdomen
where does the inferiro vena cava return blood
to the heart from region below diaphragm
what forms the inferiro vena cava
right and left common iliac veins
where does the inferiro vena cava empty
right artrium
what is the widest blood vessel in the body
inferiro vena cava
what is subclavina steal
block of the subclavain artery
