Blood

Blood:

• Blood is liquid that maintain O2 level in our body.

• Blood generally 3 types I) RBC ii) WBC iii)Platelete

• Serology or Hematology is the study name of Blood.

• Blood is a connecting tissue.

• Blood pH is 7.4

• Blood amount in man is 5.5 litre

• Blood amount in women is 5 litre 

• Blood is formed in the Bone Marrow in adult.

• Blood is formed in the liver in embroy. 

•Definition :

Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets.

•Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs. 

•White blood cells (WBC) fight infection and are part of your immune system. 

•Platelets help blood to clot when you have a cut or wound. 

•Bone marrow, the spongy material inside your bones, makes new blood cells. 

•Blood cells constantly die and your body makes new ones. 

•Red blood cells live about 120 days, and platelets live about 6 days. 

•Some white blood cells live less than a day, but others live much longer.

•Type : 

Generally 4 types - A, B, AB, O

Blood is either Rh+ and Rh-

What are blood tests?

Blood tests are used to measure or examine cells, chemicals, proteins, or other substances in the blood. Blood testing, also known as blood work, is one of the most common types of lab tests. Blood work is often included as part of a regular checkup. Blood tests are also used to:

• Help diagnose certain diseases and conditions
• Monitor a chronic disease or condition, such as diabetes or high cholesterol

• Find out if treatment for a disease is working
• Check how well your organs are working. Your organs include your liver, kidneys, heart, and thyroid.
• Help diagnose bleeding or clotting disorders
• Find out if your immune system is having trouble fighting infections