Question

what is blood...........................

Answer 1

Answer:

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.

Answer 2

Ⓑⓛⓞⓞⓓ

Blood is a special connective tissue consisting of a fluid matrix (plasma)and formed elements.

✦It is a red , opaque , slightly alkaline fluid.

✦The total volume of blood in adult human being is about 5 to 6 liters.

✦It circulates through cardiovascular system as blood is propelled by the pumping action of heart to tissues through the blood vessels.

✦The study of blood is termed as Hematology.

Blood has two components :

• Formed elements , or blood cells (erythrocytes , leukocytes , thrombocytes)that account for 45% of blood volume , and

• Fluid Plasma that accounts for 55% of blood volume.

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some important Functions of blood :

• Transportation of oxygen and nutrients to lungs and tissues

• Transportation of hormones

• Protection by carrying antibodies that fight infection

• maintaining body temperature ....