Veins are a type of blood vessel that carry deoxygenated blood back to the heart from various parts of the body. Explore how different veins look, work, and help support the cardiovascular system.

The blood supply of the shoulder - stock illustration
Axillary Vein: Anatomy, Function, and Significance
Medically reviewed by Yasmine S. Ali, MD, MSCI
Anesthetic nurse puncture cephalic vein - stock photo
Cephalic Vein: Anatomy, Function, and Significance
Medically reviewed by Scott Sundick, MD
Close look at the heart
The Anatomy of the Coronary Sinus
By Sherry Christiansen
veins and arteries of the neck
External Jugular Vein: Anatomy, Function, and Significance
Medically reviewed by Yasmine S. Ali, MD, MSCI
veins and arteries of the neck
Internal Jugular Vein: Anatomy, Function, and Significance
Medically reviewed by Yasmine S. Ali, MD, MSCI
Human liver, illustration - stock illustration
Hepatic Veins: Anatomy, Function, and Significance
Medically reviewed by Keri Peterson, MD
Human kidney cross section
Renal Vein: Anatomy, Function, and Significance
Medically reviewed by Jason DelCollo, DO
Heart and Circulatory System with Blood Vessels
Pulmonary Vein: Anatomy, Function, and Significance
Medically reviewed by Michael Menna, DO
male urethra
Urethra: Anatomy, Function, and Treatment
Medically reviewed by Chris Vincent, MD
Doctor examining a man's neck
Jugular Vein: Anatomy, Function, and Significance
Medically reviewed by Jason DelCollo, DO
Doctor pointing to model of the human liver
Portal Vein: Anatomy, Function, and Significance
Medically reviewed by Michael Menna, DO
Doctor showing his patient a model of a human heart
Inferior Vena Cava: Anatomy, Function, and Significance
Medically reviewed by Rony Kampalath, MD
The cardiovascular system
How Blood Flows Through the Heart and Lungs
Medically reviewed by Richard N. Fogoros, MD
Illustration of veins and capillaries
Capillary Structure and Function in the Body
Medically reviewed by Rony Kampalath, MD