1.1 components of the blood Flashcards
components of blood
plasma function:
The liquid component of blood is called plasma, a mixture of water, sugar, fat, protein, and salts. The main job of the plasma is to transport blood cells throughout your body along with nutrients, waste products, antibodies, clotting proteins, chemical messengers such as hormones, and proteins that help maintain the body’s fluid balance.
what is the % of plasma?
55%
red blood cells function:
contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled.
white blood cells function:
protect the body from infection. They are much fewer in number than red blood cells, accounting for about 1 percent of your blood.
platelets function:
small fragments of cells. Platelets help the blood clotting process (or coagulation) by gathering at the site of an injury, sticking to the lining of the injured blood vessel, and forming a platform on which blood coagulation can occur. This results in the formation of a fibrin clot, which covers the wound and prevents blood from leaking out. Fibrin also forms the initial scaffolding upon which new tissue forms, thus promoting healing.
what is the percentage of WBCs and platelets?
1% also known as leukocytes and thrombocytes
what is the percentage of RBCs?
44% also known as erythrocytes