Advertisements
Advertisements
प्रश्न
Explain Diapedesis.
Advertisements
उत्तर
Diapedesis – Leucocytes, especially monocytes, migrate through the walls of the blood vessels. This process is called diapedesis. Leucocytes migrate to fight germs.
APPEARS IN
संबंधित प्रश्न
What is meant by human circulatory system? Name the organs of the circulatory system in humans.
Given diagram shows a simple diagram of the circulation of blood in a mamma showing the
main blood vessels, the heart, lungs and body tissues. The blood vessel, labelled 6, contains
deoxygenated blood and the valve leading to it has three semi-lunar pockets.
(a) Name the blood vessels and organs marked by numbers 1 to 8.
(b) What is meant by the term ‘double circulation’ of blood in mammals?
(c) what is diastole?
[There is an “error” in the diagram. According to the usual practice the pulmonary (lung)
circulation is shown upward and the systemic downward, but here it is reversed].
You can see some blood vessels on the outside of the hands specially in older people. Are those veins or arteries? How can you confirm your answer?
Describe, in brief, the circulatory system in human beings.
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
Draw well labeled diagrams of part Artery and Superior vena cava to show the structural.
Explain the Term
Hepatic Portal System
The lymphatic system consists of which of the following?
Identify the normal haemoglobin count in human females.
What are the normal values of blood pressure in a normal human adult?
