Cardivascular system vocabulary

Blood pressure: The force that blood exerts against the walls of a blood vessel.
Systolic pressure: The pressure of blood when the ventricules contrac.
Diastolic pressure: When the pressure of the blood is sufficient to keep the arteries open even with the ventricles relaxed.
Hypertension: High blood pressure, or blood pressure that is higher than normal.
Pulmonary circulation: when blood travels between the heart and the lungs.
Systemic circulation: when blood travels between the heart and all other body tissues.
BLOOD
Plasma: the liquid component of blood.
Red blood cells(erythrocytes): a solid part of blood incharge of oxygen transportation.
Hemoglobin: an iron-containing protein. this is the molecule that actually transports oxygen, and carbon dioxide.
White blood cells (leukocytes): a solid part of blood incharge of defending the body against disease.
Platelets: a solid part of blood incharge of the formation of blood clots.
LYMPHATIC SYSTEM
Lymph: the fluid of the lymphatic system.
Lymphocyte: a type of white blood cell occurring in two primary forms, T cells and B cells.