What is veins? What is the function of veins
Answers
Explanation:
Veins are vessels of the circulatory system that support circulation by conveying blood to the heart. Blood flowing through the circulatory system transports nutrients, oxygen, and water to cells throughout the body.
Answer:
Veins are blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.
Vein
Venous system en.svg
The main veins in the human body
Vein (retouched).svg
Structure of a vein, which consists of three main layers. The outer layer is connective tissue, called tunica adventitia or tunica externa; a middle layer of smooth muscle called the tunica media, and the inner layer lined with endothelial cells called the tunica intima.
Details
System
Circulatory system
Identifiers
Latin
vena
MeSH
D014680
TA98
A12.0.00.030
A12.3.00.001
TA2
3904
FMA
50723
Anatomical terminology
[edit on Wikidata]
Veins are less muscular than arteries and are often closer to the skin. There are valves in most veins to prevent backflow.