Advertisements
Advertisements
प्रश्न
Long answer question:
How blood is kept moving in the large veins of the legs?
Advertisements
उत्तर
1. The blood in the large veins of legs is kept moving by the means of azygos system (located on either side of the vertebral column and drains the viscera within the mediastinum, as well as the back and thoracoabdominal walls).
2. It serves as a bypass for the inferior vena cava that drains blood from the lower body.
3. Several small veins link the azygos system directly with inferior vena cava. Large veins drain the lower limbs and abdomen, conducts blood into the azygos system.
4. If the inferior vena cava or hepatic portal vein becomes obstructed, the azygos system returns blood from the lower body to the superior vena cava.
APPEARS IN
संबंधित प्रश्न
How many types of blood vessels are there in the human body? Name them.
State the differences between artery, vein and capillary.
Answer very briefly, Why is it necessary to know The blood groups of the donor as well as the recipient ?
Name the three kinds of blood vessels found in human beings. With the help of suitable diagrams, differentiate between them.
Name the main artery which carries blood to different parts of the body.
What is antigens?
The following simplified diagram refers to the outline plan of the circulation of blood in a mammal. Study the diagram and write the number and name of the blood vessel in each case as mentioned ahead.
Which vessel would contain the highest concentration of amino acids and glucose soon after a meal?
Which type of blood flows through pulmonary veins?
Blood vessels consist of arteries and veins.
The substances to and from the tissues diffuse through the walls of ______.
