What is the venous drainage of the brain?

What is the venous drainage of the brain?

The cerebral veins empty into the dural venous sinuses situated within the subarachnoid space. The superficial system drains into the superior sagittal sinus, while the deep system drains into transverse, straight and sigmoid sinuses.

Where does venous blood from the brain drain to?

dural venous sinuses
Upon exiting the cerebral parenchyma, the veins run in the subarachnoid space and pierce the meninges to drain into the dural venous sinuses.

What are the thoracic veins?

The internal thoracic veins (ITVs) are small paired vessels located on the ventral surface of the thoracic cavity that drain the ventro-cranial abdominal wall, the ventro-lateral thoracic wall, the diaphragm and part of the mediastinum, conveying blood from these regions into the cranial vena cava.

What is venous anatomy?

Veins are a type of blood vessel that return deoxygenated blood from your organs back to your heart. The venous system refers to the network of veins that work to deliver deoxygenated blood back to your heart.

What area of the brain controls blood pressure?

The brain stem sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.

What is the most common anomaly of the cerebral venous circulation?

Developmental venous anomalies (DVAs), previously called venous angiomas, are the most frequently encountered cerebral vascular malformations. However, DVA is considered to be rather an extreme developmental anatomical variation of medullary veins than true malformation.

What part of the brain controls BP?

The cerebellum sits at the back of your head, under the cerebrum. It controls coordination and balance. The brain stem sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.

Where are the venous sinuses in the brain?

venous sinus, in human anatomy, any of the channels of a branching complex sinus network that lies between layers of the dura mater, the outermost covering of the brain, and functions to collect oxygen-depleted blood.

What is the thoracic vena cava?

The superior vena cava is a large, significant vein responsible for returning deoxygenated blood collected from the body back into the heart. It is present within the superior and middle mediastinum. The superior vena cava handles the venous return of blood from structures located superior to the diaphragm.

What organs are in the thoracic cavity?

[2] The thoracic cavity contains organs and tissues that function in the respiratory (lungs, bronchi, trachea, pleura), cardiovascular (heart, pericardium, great vessels, lymphatics), nervous (vagus nerve, sympathetic chain, phrenic nerve, recurrent laryngeal nerve), immune (thymus) and digestive (esophagus) systems.

What are venous channels?

The systemic venous channels are further classified as superficial veins, deep veins, or venous sinuses. They channel blood from cutaneous tissues to deep veins via perforations in the deep fascia. Most of the deep veins share routes with the arteries, and many are enclosed in the same sheaths.

Why are venous valves important?

The deep veins play a significant role in propelling blood toward the heart. The one-way valves in deep veins prevent blood from flowing backward, and the muscles surrounding the deep veins compress them, helping force the blood toward the heart, just as squeezing a toothpaste tube ejects toothpaste.