Venous Drainage of body


Venous Drainage

1. From the right subclavian vein, and right internal jugular which are present in right arm and right side of head and neck. and both of them joint to form right brachiocephalic vein.

On the other hand left subclavian vein and left internal jugular vein which are present in left arm and left side of head and neck. These both joint to form left brachiocephalic vein.

2. Right brachiocephalic vein and left brachiocephalic vein will connect to superior venacava and carry deoxygenated blood to superior venacava.

3. Azygos vein which are present in the thoracic organ will carry deoxygenated blood to superior venacava.

On the other hand, Hemiazygos vein which are also present in the thoracic organs and are connected to left brachiocephalic vein which carry deoxygenated blood to superior venacava.

4. Right common iliac vein and left common iliac carries the deoxygenated blood to inferior venacava from the lower limbs and lower part of body (pelvic and legs).

5. From the alimentary canal which includes splenic vein, inferior mesenteric vein and superior mesenteric vein and gastric vein, from these parts deoxygenated blood goes to hepatic portal vein or portal vein and hepatic portal vein deoxygenated blood goes to liver and further goes to inferior venacava through hepatic portal vein.

Venous Drainage of the Body

1. Venous Drainage from the head and neck

2. Venous Drainage from the upper limb

3. Drainage from shoulder to heart

4. Drainage of the Thorax

5. Venous Drainage from the abdomen

6. Venous Drainage of lower limb and pelvic organs

Venous Drainage System

Major veins return deoxygenated blood from the body to right atrium.

Right atrium

Coronary sinus

(largest vein of heart)




Cardia vein



Marginal vein

Oblique vein of left atrium

Posterior vein of left ventricle

Anterior cardiac vein

Superior venacava

Right Brachiocephalic vein

Left Brachiocephalic vein

(head, neck, thorax, and upper limb)

Inferior venacava

Right common iliac vein

Left common iliac vein

(Abdomen, pelvis and lower limb)

Venous Drainage from the Head and Neck

External jugular vein             External jugular vein

Right subclavian vein            Left subclavian vein

Internal jugular vein              Internal jugular vein

Right vertebral vein               Left vertebral vein

Right Brachiocephalic vein - Superior venacava-  Left Brachiocephalic vein

Venous Drainage from the Upper Limb

Radial vein join Ulnar vein - form brachial vein join

with Basilic vein to form axillary veins continue

as Subclavian veins - Brachiocephalic vein- Superior venacava

Drainage from Shoulder to Heart

External jugular, vertebral              External jugular, vertebral      


Right subclavian veins                   Right subclavian veins

+                                                        +

Internal jugular vein.                   Internal jugular vein

Right Brachiocephalic vein        Left Brachiocephalic vein

                              Superior Venacava

Drainage of the Thorax

Superior venacava receives drainage from thoracic and abdominal walls by way of Azygos system.

(On the right side) Azygos vein- R.Brachiocephalic vein- Superior venacava -On the left side, left brachiocephalic          (Present in Thorax)                                                                                                                          vein

                                                                                                                                      Hemiazygos vein (present in thorax)

                                                                                                            Accessary Hemiazygos vein

Venous Drainage from the Abdomen

Blood draining from abdominopelvic viscera and abdominal wall is returned to heart by inferior venacava.

                                                      Inferior venacava

Venous Drainage of the lower limb and pelvic organs

Right common iliac vein.   Inferior Venacava (IVC)   Left common iliac vein

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