Facts on File Encyclopedia of Health and Medicine

V–W valvular heart disease The collective term for the malformations and disorders that can affect the valves of the HEART. Valv ...

agulants to reduce the risk for blood clots and beta blockers or calcium channel blockers to lower BLOOD PRESSUREand slow the HE ...

tones and strengthens the muscles of the legs, which then can help to support the veins. The rhythmic movement of the leg muscle ...

The cardiologist may use venogram to diagnose VARICOSE VEINS, VENOUS INSUFFICIENCY, or DEEP VEIN THROMBOSIS (DVT). For venogram, ...

The ELECTROCARDIOGRAM(ECG) provides the diag- nosis, showing the accessory conductive pathway. People who do not have symptoms d ...

Structures of the Blood BLOOD SPLEEN PLASMA THYMUS BONE MARROW LYMPH erythrocytes LYMPH NODES reticulocytes cervical nodes plate ...

The Blood and Lymph 119 marrow also warehouses minerals it requires for cell synthesis and the bones need for STRENGTHand growth ...

then migrate into the tissues where they establish themselves as fixed defenders called macrophages. Granulocytes circulate in t ...

appears the education of T-cells somehow goes awry, and the thymus releases those that identify certain self cells as nonself. T ...

MODERN THERAPEUTIC BLOODLETTING As was the case with Galen’s views on the source of BLOOD, there is also a fragment of validity ...

A aging, changes in the blood and lymph that occur with The BLOODundergoes a number of normal changes across the span of the lif ...

aged erythrocytes from circulation. The spleen also becomes less effective in fighting infection, reduc- ing the body’s resistan ...

Erythrocyte destruction or deformity One of the spleen’s roles is to filter erythrocytes from the blood that are old or defectiv ...

underlying cause nearly always eliminates the anemia. Most anemias are curable or treatable. Risk Factors and Preventive Measure ...

B basophilSee GRANULOCYTE. blood The cell-filled fluid that carries vital chemicals and NUTRIENTSvia the cardiovascular sys- tem ...

blood products used for transfusions. According to the American Association of Blood Banks, 8 mil- lion Americans donate 15 mill ...

donations the same as general donations, many health experts are concerned that donors may not be forthcoming during the health ...

and cross-match procedures of donor and recipi- ent blood types prevent most blood incompatibil- ity, though situations of extre ...

ABO Blood Types There are four blood types: A, B, AB, and O. Each designates the presence or absence of specific blood antigens ...

foundation of the BLOODand its circulation and plays a fundamental role in immune function. Red bone marrow is the primary sourc ...