GENERAL HISTOLOGY

Detailed explanation-1: -Thus, valves help the return of blood to the heart-by opening when the blood flows toward the heart and closing when blood might flow backward. The deep veins play a significant role in pushing blood toward the heart. The one-way valves in deep veins prevent blood from flowing backward.

Detailed explanation-2: -What are Vein Valves? Interspersed throughout your veins are small crescent-shaped flaps of tissue, known as valves, that help prevent a backflow of blood. These valves project from the innermost layer of the vein wall to the center of the vein and are angled towards the heart in the direction of venous blood flow.

Detailed explanation-3: -The one-way venous 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.

Detailed explanation-4: -Veins often pump blood against the flow of gravity and make use of valves to prevent the blood from flowing downwards.