What is the function of vertebral vein?
The function of the vertebral vein is to drain the venous blood from the cervical spine, prevertebral and suboccipital muscles. It terminates low in the neck by emptying into the brachiocephalic vein.
Where does the vertebral vein supply blood to?
As the supplying component of the vertebrobasilar vascular system, the vertebral arteries supply blood to the upper spinal cord, brainstem, cerebellum, and posterior part of brain. A stroke of the arteries may result in a posterior circulation stroke.
What vein does blood flow from vertebral veins?
Spinal Blood Supply
| Veins | Region/Comment |
|---|---|
| External Jugular | Cervical – returns blood from the head |
| Superior Vena Cava | Cervical/Upper Thoracic Returns blood from upper body to heart |
| Thoracic Segmental | Thoracic |
| Inferior Vena Cava | Thoracic/Lumbosacral Returns blood from lower body to heart |
Where does the subclavian vein drain blood from?
The primary function of the subclavian vein is to drain deoxygenated blood from the upper region of the body—including the arms and the shoulder areas—and transport it back to the heart. 6 Another important function of the subclavian is to collect lymph fluid from the lymphatic system from the internal jugular vein.
Are there blood vessels in the spinal cord?
Oxygen-rich blood normally enters your spinal cord through arteries, which branch into smaller blood vessels (capillaries). Your spinal cord uses the oxygen from the blood in your capillaries. The oxygen-depleted blood then passes into veins that drain blood away from your spinal cord to your heart and lungs.
What is the function of the spinal cord?
The spinal cord is a column of nerves that connects your brain with the rest of your body, allowing you to control your movements. Without a spinal cord, you could not move any part of your body, and your organs could not function.
Is vertebral vein paired?
This plexus ends in a single trunk, which emerges from the transverse foramina of the sixth cervical vertebra, and opens at the root of the neck into the back part of the innominate vein near its origin, its mouth being guarded by a pair of valves.
What does vertebral mean?
1 : of, relating to, or being vertebrae or the spinal column : spinal. 2 : composed of or having vertebrae. vertebral. noun.
Do you have blood vessels in your spine?
The main blood vessels are the anterior spinal artery (at the front of the spinal cord) and the posterior spinal artery (at the back). Spinal strokes are most common in the anterior spinal artery.
Does the spine produce blood cells?
Most blood cells are made in your bone marrow. This process is called haemopoiesis. In children, haemopoiesis takes place in the long bones, like the thighbone (femur). In adults, it’s mostly in the spine (vertebrae) and hips, ribs, skull and breastbone (sternum).
Where does the vertebral vein form in the body?
The vertebral vein (Latin: vena vertebralis) is a venous blood vessel that is formed by numerous small tributaries arising from the internal vertebral plexuses. The vertebral vein arises from the external venous plexus at the level of the posterior arch of the atlas (C1). The vein accompanies the vertebral artery, forming a plexus around it.
Where does the vertebral venous plexus drain blood from?
The epidural (internal vertebral) venous plexus, which drains blood not only from the cord but also from bone and red bone marrow, consists of several anterior and posterior longitudinal and interconnecting vessels. At the level of the foramen magnum, it forms a dense network that communicates with vertebral veins.
Where do the lumbar veins drain blood from?
As the lumbar veins continue along the wall of the posterior trunk, they usually pass posterior, or occasionally anterior to the lumbar part of the sympathetic trunk. Here, each lumbar vein drains blood from the sympathetic trunk and the lumbar portion of the deep back muscles.
Where does the ascending lumbar vein join the iliac vein?
Each ascending lumbar vein courses medially to the psoas major muscle and interconnects the ipsilateral lumbar, iliolumbar and common iliac veins. The ascending lumbar veins unite with the corresponding subcostal veins to form the azygos vein on the right and hemiazygos vein on the left.