Components- Erythrocytes, Leukocytes, Thrombocytes (platelets), Plasma, plasma proteins: Albumins, Globulins, Clotting factors and other solutes.
RBC- Eruthrocytes- Carry the gases and electrolytes that regulate the gas diffusion through the cell's plasma membrane, live for 120 days,
WBC- Leukocytes- Defend the body against infection and remove debris
Classified by structure:
Classified as phagocytes or immunocytes
Thrombocytes: Not true cells; no DNA, Disk-shaped
Essential for blood coagulation and control of bleeding
Release proinflammatory biochemical mediators when stimulated by injury to a blood vessel
1/3 platelets reserved in the spleen; circulates for 10 days, then are removed by macrophages
Thrombopoietin (TPO; a hormone growth factor) is the main regulator of platelets (produced by the liver)
most abundant- Erythrocytes
RBC & WBC produced in bone marrow.
Often called mono or kissing disease, an infection with the Epstein-Barr virus.
Symptoms include fatigue, fever, rash, and swollen glands. The elderly may not have typical symptoms.
Pain circumstances: can occur while swallowing
Whole body: fatigue, fever, chills, malaise, or body ache
Also common: sore throat, swollen lymph nodes, swollen tonsils, headache, or nausea