What is superior intercostal artery?
The highest intercostal artery (supreme intercostal artery or superior intercostal artery) is an artery in the human body that usually gives rise to the first and second posterior intercostal arteries, which supply blood to their corresponding intercostal space.
What does the superior intercostal vein do?
The left superior intercostal vein drains the 2nd and 3rd posterior intercostal veins on the left side of the body. It usually drains into the left brachiocephalic vein. It may also communicate with the accessory hemiazygos vein.
What gives rise to supreme intercostal artery?
Usually originating from the costocervical trunk, the supreme intercostal artery also may arise from the thyrocervical trunk or its subsequent branches, such as the dorsal scapular artery or inferior thyroid artery.
Where do intercostal arteries Anastomose?
Each anterior intercostal artery will anastomose with the posterior intercostal and small collateral arteries at the level of the anterior axillary line. The anterior intercostal artery provides musculocutaneous supply to the intercostal muscles and overlying skin of its intercostal space.
What artery gives rise to the Supreme highest intercostal artery?
subclavian artery
It usually arises from the costocervical trunk, which is a branch of the subclavian artery.
Where is the superior intercostal vein located?
Gross anatomy The left superior intercostal vein forms by the union of the 2nd to 4th left posterior intercostal veins. It courses superiorly to the left of the midline, arches posteriorly lateral to the aortic arch to drain into the left brachiocephalic vein.
How right superior intercostal vein is formed?
The right superior intercostal vein is visualised on CT examination as a circular opacity laterally at the right aspect of the vertebral body at the T4-T5 level. In venographic examination the RSIV appears to be formed by the confluence of the venous channels, the right second, third and fourth intercostal veins.
What does superior thoracic artery supply?
Running forward and medially along the upper border of the pectoralis minor, the superior thoracic artery passes between it and the pectoralis major to the side of the chest. It supplies branches to the first and second intercostal spaces as well as to the superior portion of serratus anterior.
What artery supplies the thoracic wall?
The internal thoracic artery, aka the internal mammary artery, supplies the breast and the anterior chest wall. The internal thoracic artery travels along the inner surface of the anterior chest wall on both sides.
Where does superior phrenic artery originate from?
thoracic aorta
The superior phrenic arteries are small branches arising either side from the lower part of the thoracic aorta just before it passes through the aortic hiatus. They anastamose with the pericardiophrenic and musculophrenic arteries to supply the superior surface of the diaphragm.
Where is the superior intercostal artery located in the body?
The superior intercostal artery (Latin: arteria intercostalis suprema) is a branch of the costocervical trunk that supplies the upper two intercostal spaces. The superior intercostal artery passes inferiorly between the pleura and the necks of the first and second ribs.
How is the posterior intercostal artery related to the sympathetic trunk?
Both the left and right posterior intercostal arteries are related to the sympathetic trunk and ganglia on the same side. The posterior intercostal artery travels in the costal groove between the intercostal vein and nerve.
Where do the anterior and posterior intercostal arteries anastomose?
The posterior and collateral intercostal arteries anastomose with the anterior intercostal arteries of the same side at the anterior axillary line. The only exception to this rule is in the tenth and eleventh intercostal spaces.
Where do the intercostal veins drain into the thoracic vein?
The first six pairs of anterior intercostal veins drain directly to the internal thoracic vein. The seventh to ninth anterior intercostal veins will first drain to the musculophrenic vein, which then drains to the internal thoracic vein. Learn more about the intercostal veins here: