Blood Flashcards
Granulocytes
Type of white blood cells. Formed in bone marrow. They are phagocytic ( actively seek out and engulf bacteria)
Monocytes
Type of white blood cell. Non-granular and are also phagocytic
Lymphocytes
Formed in the bone marrow and matured in the lymph nodes. They recognise proteins ( antigens) on the cell membranes of invading organisms and responded by making antibodies which kill the invaders
Blood pressure
The force the blood exerts against the wall of the blood vessel
Pulse
Contraction of the wall of an artery/ the rate at which the heartbeats
Valves
Control the direction of bloodflow
Portal system
A blood pathway that begins and ends in capillaries
Hepatic portal vein
Carries blood rich in food form from the small intestines to the liver
Diastole
When the heart chambers relax
Systole
When heart chambers contract
Lymphatic system
A secondary circulatory system consisting of fine tubes ending blindly among the tissues
Lymph nodes
Small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed.
Lymphatic vessels
The tubes that carry lymph
Serum
Plasma without clotting agents. Can be stored by hospitals for transfusions
