What artery supplies the intercostal?
What artery supplies the intercostal?
The posterior intercostal arteries are arteries that supply blood to the intercostal spaces. There are eleven posterior intercostal arteries on each side….
| Intercostal arteries | |
|---|---|
| Supplies | Intercostal muscles and intercostal space |
| Identifiers | |
| Latin | Arteriae intercostales |
| Anatomical terminology |
What are the intercostal veins?
The intercostal veins are a group of veins which drain the area between the ribs (“costae”), called the intercostal space.
How many intercostal arteries are there?
11
Gross Anatomy. There are 11 paired arteries that constitute the posterior intercostal arteries. The first two intercostal spaces are supplied by the superior intercostal artery, and the remaining nine are supplied by separate branches from the descending thoracic aorta 1.
Where do the intercostal arteries supply blood?
Along with the posterior intercostal arteries, the anterior intercostal arteries supply the muscles and skin within the intercostal spaces as well as the parietal pleura.
How many intercostal veins are there?
(Intercostals visible at right.) There are eleven posterior intercostal veins on each side. Their patterns are variable, but they are commonly arranged as: The 1st posterior intercostal vein, supreme intercostal vein, drains into the brachiocephalic vein or the vertebral vein.
Where do intercostal veins drain?
The intercostal veins run above the intercostal arteries, which run above the intercostal nerves. The posterior intercostal veins drain into the azygos vein (right side), and hemiazygos and accessory hemiazygos veins (left side). The latter two veins ultimately drain into the azygos vein.
What is the supreme intercostal artery?
The supreme intercostal arteries, or superior intercostal arteries, are formed as a direct result of the embryological development of the intersegmental arteries. These arteries are paired structures of the upper thorax which normally form to provide blood flow to the first and second posterior intercostal arteries.
Where do intercostal veins drain to?
Where does the intercostal vein originate?
The anterior intercostal veins originate from the intercostal space just inferior to anterior aspects of their respective ribs and drain into the internal thoracic and musculophrenic veins.
Where does the first intercostal vein drain?
brachiocephalic vein
The 1st posterior intercostal vein, supreme intercostal vein, drains into the brachiocephalic vein or the vertebral vein.
Where do the 1st and 5th to 8th posterior intercostal veins drain to?
The 1st posterior intercostal vein, supreme intercostal vein, drains into the brachiocephalic vein or the vertebral vein. The 2nd and 3rd (and often 4th) posterior intercostal veins drain into the superior intercostal vein.
What do intercostal veins drain into?
The posterior intercostal veins drain into the azygos vein (right side), and hemiazygos and accessory hemiazygos veins (left side). The latter two veins ultimately drain into the azygos vein. The azygos vein then drains into the superior vena cava.