Oxygen transport from cells to the lungs, The transport of hormones from target cells to the originating endocrine gland, Serum coagulation due to the fibrinogen it contains

Figurative elements, up to 45%, Various ions (sodium, potassium, calcium, chloride, bicarbonate, Proteins that have a role in coagulation (fibrinogen)

It contains lipids, glucose, amino acids and other metabolites (nitrogen-containing products), It contains 1% ions (Na+, K+, Ca2+ etc.), It contains dissolved gases (O2 – approximately 2% of the quantity transported by blood and CO2 – approximately 7% of the total CO2 transported by blood)

After the release of iron, the heme is initially transformed into biliverdin, By means of the bile, bilirubin is transported into the bowel and is subjected to the action of intestinal flora, Under the action of the intestinal bacterial flora, part of the bilirubin is converted into urobilinogen

Protein molecules, called antigens, Antigen A, antigen B, antigen Rh

Anti-B antibodies in the serum and antigen A on the erythrocyte surface – blood group A, Anti-A antibodies in the serum and antigen B on the erythrocyte surface – blood group B

It has both types of antibodies, anti-A and anti-B, in the serum, Can donate blood to the blood group A, Can donate blood to the blood group B

Their primary role is to protect tissues against infections and foreign substances in the body, They have a nucleus which can have two or more lobes or can have different sizes and shapes, Enter the blood stream by diapedesis and leave the blood stream in the same way

They represent about 30% of the total number of leukocytes and they are of two types, B lymphocytes and T lymphocytes, Both lymphocyte types can be found in the lymph nodes and in the blood, B lymphocytes, stimulated by the body’s antigens during the immune response, proliferate and turn into plasmocytes

The cardiovascular system consists of the heart and blood vessels, The cardiovascular system includes a set of tubes which transport blood (blood vessels), The heart is the organ which acts like a pump in the cardiovascular system

It begins in the left heart, The left ventricle receives, through the bicuspid valve, oxygenated blood from the left atrium, The arteries of the systemic circulation take the blood to the head, thorax, abdominal region and other parts of the body

Their function is to facilitate the exchange between blood and tissues, The passage of blood into the capillary bed is regulated by the precapillary sphincter, The exchanges between blood and cells in the body take place in a transendothelial manner according to Starling’s law of fluid movements

They carry low-pressure blood from the venules to the heart, Hold approximately 60% of the blood volume (they act as the body’s blood reservoirs)

The right axillary artery (for the right upper limb), The brachial, radial and ulnar arteries (for the arm and forearm), The femoral, popliteal, anterior tibial, posterior tibial and the dorsal arch (for the lower limb)

It carries blood from the gastrointestinal tract and spleen to the liver, It carries nutrients to the liver in order to be processed, the main vessel being the portal vein, It carries low-oxygen blood as it has supplied the gastrointestinal tract