Admin Table of Contents
- 1 What drains into the Hemiazygos vein?
- 2 At what level does the azygos vein enter the SVC?
- 3 Where does the left superior intercostal vein drain into?
- 4 How does the hemiazygos vein enter the thorax?
- 5 Where does the superior vena cava start?
- 6 Where is the azygos vein located and what area does it drain quizlet?
What drains into the Hemiazygos vein?
The azygos vein arises from the right ascending lumbar vein. It drains blood from the right posterior intercostal veins. It travels close to the right side of the inferior 8 thoracic vertebrae. It arches anteriorly just above the hilum of the right lung and drains into the superior vena cava.
At what level does the azygos vein enter the SVC?
The azygos vein originates at the junction of the right ascending lumbar and subcostal veins, entering the chest through the aortic hiatus. It ascends along the anterolateral surface of the thoracic vertebrae and arches ventrally to the right main bronchus at T5–T6, draining into the SVC.
Where does the azygos vein receives blood from?
The azygos vein receives blood from the posterior and lateral parts of the chest wall. On the right side, the posterior intercostal veins empty directly into it. On the left side, the posterior intercostals empty into these two hemi-azygos veins which in turn empty into the azygos.
What drains into the superior vena cava?
The superior vena cava (SVC, also known as the cava or cva) is a short, but large diameter vein located in the anterior right superior mediastinum….Superior vena cava.
| Source | Brachiocephalic vein, azygos vein |
|---|---|
| Draining area | Upper half of the body (above the diaphragm) |
| Drains to | Right atrium of heart |
Where does the left superior intercostal vein drain into?
left brachiocephalic vein
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. It typically communicates with the accessory hemiazygos vein.
How does the hemiazygos vein enter the thorax?
Azygos vein It enters the thorax via the aortic hiatus in the diaphragm and ascends posteriorly alongside the vertebral bodies, arching over the right main bronchus at T5-T6 and enters the superior vena cava (SVC) at T4 2.
Where is the azygos vein located?
thoracic vertebrae
The azygos vein originates at the junction of the right ascending lumbar and subcostal veins, entering the chest through the aortic hiatus. It ascends along the anterolateral surface of the thoracic vertebrae and arches ventrally to the right main bronchus at T5–T6, draining into the SVC.
Where does vena cava drain?
The inferior vena cava is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart….
| Inferior vena cava | |
|---|---|
| Drains to | Right atrium |
| Artery | abdominal aorta |
| Identifiers | |
| Latin | vena cava inferior |
Where does the superior vena cava start?
right costal cartilage
The superior vena cava (SVC) starts at the confluence of the brachiocephalic veins behind the first right costal cartilage, and ends at the level of the third right costal cartilage where it drains into the right atrium. The SVC is about 7 cm long and 2 cm wide.
Where is the azygos vein located and what area does it drain quizlet?
Drainage includes: posterior intercostal veins, intervertebral veins and esophageal veins. The azygos vein drains returning blood back into the superior vena cava. The azygos vein passes posterior to the root of the right lung and arches over the root to drain into the superior vena cava.
Which of the following veins drains the thoracic wall?
The azygos vein drains the posterior thoracic and abdominal wall, and is formed by the confluence of the ascending lumbar veins and the right subcostal vein at vertebral level T12. The azygos vein arches over the right main bronchus, in order to join the superior vena cava.