Tremor affecting the muscles of one side of the body.
A variant truncus arteriosus in which only one pulmonary artery originates from the truncal artery.
A congenital defect of the spine in which one side of a vertebra fails to develop completely.
An individual hemizygous with respect to one or more specified loci; e.g., a normal male is a h. with respect to the gene for all X-linked or Y-linked genes in his genome. [ ...
Having unpaired genes in an otherwise diploid cell; males are normally h. for genes on both sex chromosomes. SYN: hemizygotic.
Combining form denoting blood. SEE ALSO: hem-, hemat-, hemato-. [G. haima]
An antibody that neutralizes the effects of a hemotoxin, such as the hemolytic material in cobra venom.
Bleeding into the biliary passages, usually as a result of hepatic trauma or a neoplasm in the liver or biliary tract. SYN: hematobilia.
- lymphoid h. of Pappenheim obsolete term for pronormoblast. SEE ALSO: erythroblast.
A proliferative condition of the hematopoietic tissues in general.
Cleansing the blood. [ hemo- + G. katharsis, a cleansing]
Destruction of the blood cells, especially of erythrocytes (hemocytocatheresis). [ hemo- + G. kathairesis, destruction]
The system of blood-containing spaces pervading the body in arthropods. [ hemo- + G. koiloma, cavity]
An inherited disorder in how the body absorbs and stores iron. The excess iron gives the skin a bronze color and damages the liver and other organs. Diabetes is also a part of ...
Term originally used for combinations of ferro- or ferriporphyrins with 2 mol of a nitrogenous base or protein, e.g., pyridine ferroporphyrin. SYN: hemochrome. [ hemo- + G. ...
Rupture, dissolution (hemolysis), or other type of destruction of red blood cells. [ hemo- + G. klasis, a breaking]
Decrease in the volume of plasma in relation to the number of red blood cells; increase in the concentration of red blood cells in the circulating blood.
An obsolete term for small refractive particles in the circulating blood, probably lipid material associated with fragmented stroma from red blood cells. SYN: blood dust, blood ...
A condition in which there is an abnormal amount of hemoconia in the blood.
Determination of the freezing point of blood. [ hemo- + G. kryos, cold, + skopeo, to examine]
An oxygen-carrying pigment (molecular weights between 0.45 and 13 × 106) of lower sea animals (including molluscs and crustacea) and arthropods; copper is an essential ...
Any cell or formed element of the blood. SYN: hematocyte. [ hemo- + G. kytos, a hollow (cell)]
A blood cell derived from embryonic mesenchyme, characterized by basophilic cytoplasm and a relatively large nucleus with a spongy, loose network of chromatin and several ...
Hemolysis, or other type of destruction of red blood cells. [ hemo- + G. kytos, a hollow (cell), + kathairesis, destruction]
The dissolution of blood cells, including hemolysis. SYN: hematocytolysis. [ hemo- + G. kytos, cell, + lysis, dissolution]
An apparatus for estimating the number of blood cells in a quantitatively measured volume of blood; it consists of a glass pipette with an ampulla for collecting and diluting the ...
Fragmentation or disintegration of blood cells by means of mechanical trauma, e.g., compression between hard surfaces. [ hemo- + G. kytos, + tripsis, a grinding]
A protozoon parasite of the blood cells. SYN: hemacytozoon, hematocytozoon. [ hemo- + G. kytos, cell, + zoon, animal]
A medical procedure that uses a special machine (a dialysis machine) to filter waste products from the bloodstream and to restore normal constituents to the blood. This ...
A machine for hemodialysis in acute or chronic renal failure; toxic substances in the blood are removed by exposure to dialyzing fluid across a semipermeable membrane. SYN: ...
Increase in the volume of plasma in relation to red blood cells; reduced concentration of red blood cells in the circulation.
Relating to the physical aspects of the blood circulation.
The study of the dynamics of the blood circulation. [ hemo- + G. dynamis, power]
Any abnormal condition or disorder of the blood and hemopoietic tissue, used especially with reference to those resulting in changes in the formed elements. SYN: ...
Any disease or abnormal condition of the blood and hemopoietic tissues, exclusive of simple transitory changes. SYN: hematodystrophy.
A process, similar to hemodialysis, by which blood is dialyzed using ultrafiltration, and usually to remove a specific product of fluid volume.
Protozoan flagellates in the family Trypanosomatidae that are parasitic in the blood of many species of domestic and wild animals and birds, and of humans; they include the ...
A brown pigment derived from hemoglobin that occurs in urine occasionally along with hemosiderin, usually indicative of increased red blood cell destruction; occurs also in the ...
The oxygen-carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygenated state it is called ...
The main fraction of glycosylated hemoglobin (glycohemoglobin) which is hemoglobin to which glucose is bound. Hemoglobin A1C is tested to monitor the long-term control of diabetes ...
Hemoglobin normal values
Hemoglobin is the oxygen-carrying pigment in the blood, the predominant protein in the red blood cells. In the routine laboratory test for hemoglobin (Hb), it is usually measured ...
The most common type of abnormal hemoglobin and the basis of sickle cell trait and sickle cell anemia. Hemoglobin S differs from normal adult hemoglobin (called hemoglobin A) ...
Hemoglobin to which glucose is bound. Glycosylated hemoglobin is tested to monitor the long-term control of diabetes mellitus. The level of glycosylated hemoglobin is increased in ...
The presence of free hemoglobin in the blood plasma, as when intravascular hemolysis occurs.
- paroxysmal nocturnal h. an acquired hematopoietic stem cell disorder ...
The presence of hemoglobin in the bile. [hemoglobin + G. chole, bile]
Destruction or chemical splitting of hemoglobin. SYN: hemoglobinopepsia. [hemoglobin + G. lysis, dissolution]
A disorder or disease caused by or associated with the presence of abnormal hemoglobins in the blood, e.g., sickle cell disease, hemoglobin C, D, E, H, or I disorders. ...
Denoting certain microorganisms that cannot be cultured except in the presence of hemoglobin. [hemoglobin + G. phileo, to love]
The presence of free hemoglobin in the urine, an abnormal finding, that may make the urine look dark. Hemoglobin is the protein in the red blood cells which carries oxygen from ...
A complete detailed record of the findings in a thorough examination of the blood, especially with reference to the numbers, proportions, and morphologic features of the formed ...
A primitive mesenchymal cell believed to be capable of developing into all types of blood cells, including monocytes, and into histiocytes. SYN: Ferrata cell, hematohistioblast. ...
A concretion in the wall of a blood vessel. [ hemo- + G. lithos, stone]
1. The blood and lymph, in the sense of a “circulating tissue.” 2. The nutrient fluid of certain invertebrates. [ hemo- + L. lympha, clear water]
Preparation resulting from the lysis of erythrocytes.
1. Any substance elaborated by a living agent and capable of causing lysis of red blood cells and liberation of their hemoglobin. SYN: erythrocytolysin, erythrolysin. 2. A ...
The antigenic material in red blood cells that stimulates the formation of hemolysin.
The destruction of red blood cells which leads to the release of hemoglobin from within the red blood cells into the blood plasma. Etymology: The word "hemolysis" is made up of " ...
Referring to hemolysis, the destruction of red blood cells which leads to the release of hemoglobin from within the red blood cells into the blood plasma. Hemolytic anemia, for ...
Hemolytic disease of the newborn
Abnormal breakup of red blood cells in the fetus or newborn. This is usually due to antibodies made by the mother directed against the babys red cells. It is typically ...
Hemolytic jaundice, congenital
Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing) and splenomegaly ...
Hemolytic-uremic syndrome (HUS)
: A condition involving breakup of red blood cells and kidney failure. There is clumping of platelets (the blood cells responsible for clotting) within the kidney's small blood ...
To produce hemolysis or liberation of the hemoglobin from red blood cells.
Any abnormal condition or disease of the blood or hemopoietic tissues. SYN: hematopathy. [ hemo- + G. pathos, suffering]
Passage of blood through columns of adsorptive material, such as activated charcoal, to remove toxic substances from the blood. [ hemo- + L. perfusio, to pass through]
A serum glycoprotein related to β-globulins, with molecular weight around 57,000, containing 22% carbohydrate; important in binding heme and porphyrins, preventing excretion, ...
SYN: hematophagia. [ hemo- + G. phagein, to eat]
A rare, cancer-like disorder in which both histiocytes and lymphocytes start to proliferate and attack body tissues or organs. It can be an inherited condition, or it can occur ...
The process of engulfment (and usually destruction) of blood cells by the various types of phagocytic cells; used especially with reference to the engulfment of erythrocytes and ...
A microorganism growing preferably in media containing blood. [ hemo- + G. philos, fond]
A set of inherited bleeding disorders in which the ability of blood to clot is impaired.
* * *
An inherited disorder of blood coagulation characterized by a permanent tendency to ...
Classic hemophilia due to profound deficiency of factor VIII in the blood, which is necessary for normal clotting. The hemophilia A gene is on the X chromosome, so females ...
Hemophilia due to deficiency of coagulation factor IX in the blood which results in prolonged oozing after minor and major injuries, tooth extractions, or surgery. There is ...
Any disease caused by bacteria of the genus Haemophilus.
An abnormal and persistent fear of blood. Sufferers of this very common phobia dread the sight of their own blood, the sight of the blood of another person or an animal, and ...
Blood convection or irrigation of tissues. [ hemo- + G. phoreo, to bear]
An obsolete term for anemia resulting from abnormal degeneration or destruction, or a deficiency in the formation of red blood cells. [ hemo- + G. phthisis, a wasting away]
Formation or elaboration of blood by the hemopoietic tissues. [ hemo- + G. plasso, to form]
Concurrence of blood and air in the pericardium. SYN: pneumohemopericardium. [ hemo- + G. pneuma, air, + pericardium]
Accumulation of air and blood in the pleural cavity. SYN: pneumohemothorax. [ hemo- + G. pneuma, air, + thorax]
The process of formation and development of the various types of blood cells and other formed elements. SYN: hematogenesis, hematopoiesis, hematosis (1), hemogenesis, ...
Pertaining to or related to the formation of blood cells. SYN: hemafacient, hematogenic (1), hematogenous, hematoplastic, hematopoietic, hemogenic, hemoplastic, ...
An antibody that combines with and precipitates soluble antigenic material from erythrocytes.
Protein linked to a metal-porphyrin compound ( e.g., cytochromes, myoglobin, catalase).
Spitting up blood or blood- tinged sputum. Pronounced he-MOP-tis-is. The word “hemoptysis” comes from the Greek “haima” for “blood” + “ptysis” meaning “a ...
1. A substance or surface that discourages the adherence of blood. 2. Having such an action.
The science of the flow of blood in relation to the pressures, flow, volumes, and resistances in blood vessel s, especially in terms of blood viscosity and red cell deformation ...
Bleeding or the abnormal flow of blood. The patient may have an internal hemorrhage that is invisible or an external hemorrhage that is visible on the outside of the body. ...
Bleeding within the head into the space between two membranes that surround the brain. The bleeding is beneath the arachnoid membrane and just above the pia mater. (The ...
Pertaining to bleeding or the abnormal flow of blood. The patient may have an internal hemorrhagic problem that is not be visible or the patient may have an external hemorrhagic ...
Hemorrhagic diarrhea, E. coli
Bloody colitis (inflammation of the bowel) caused by E. coli, usually by the strain E. coli 0157:H7. The diarrhea is severe with painful abdominal cramps, gross blood in the ...
Hemorrhagic fever with renal syndrome
A number of diseases, also known as hemorrhagic fever, characterized by an abrupt onset of high fever and chills, headache, cold and cough, and pain in the muscles, joints and ...
Hemorrhagic fever, epidemic
A number of diseases characterized by an abrupt onset of high fever and chills, headache, cold and cough, and pain in the muscles, joints and abdomen with nausea and vomiting ...
Cytolysins found in certain venoms and poisonous material from some plants, e.g., rattlesnake venom and ricin; h. cause degeneration and lysis of endothelial cells in ...
Denoting one of the tumors or varices constituting hemorrhoids.
1. Relating to hemorrhoids. 2. Formerly applied to certain arteries and veins supplying the region of the rectum and anus, currently described by “anal” or “rectal.”
Surgical removal of hemorrhoids; usually accomplished by excision of hemorrhoidal tissues by sharp dissection, or by application of elastic ligature at the base of the ...
A varicose condition of the external hemorrhoidal veins causing painful swellings at the anus. SYN: piles. [G. haimorrhois, pl. haimorrhoides, veins likely to bleed, fr. haima, ...
Vomiting of blood and saliva. [ hemo- + G. sialon, saliva, + emesis, vomiting]
A golden yellow or yellow-brown insoluble protein produced by phagocytic digestion of hematin; found in most tissues, especially in the liver, spleen, and bone marrow, in the ...
Accumulation of hemosiderin in tissue, particularly in liver and spleen. See hemochromatosis. [ hemosiderin + -osis, condition]
- idiopathic pulmonary h. repeated sudden attacks ...
Presence of blood in the seminal fluid. SYN: hematospermia. [ hemo- + G. sperma, seed]
- h. spuria h. occurring in the prostatic urethra.
- h. vera h. from the seminal ...
A blood parasite of the order Haemosporidia. [ hemo- + Mod. L. dim. of G. sporos, seed]
Common term for members of the order Haemosporidia.
The stoppage of bleeding or hemorrhage. Also, the stoppage of blood flow through a blood vessel or organ of the body. Hemostasis is the arrest of bleeding, whether it be by normal ...
Hemostasis, genetics of
Inherited factors that play a role in hemostasis, the stoppage of blood flow through a blood vessel. There is genetic regulation of proteins involved in hemostasis and ...
1. Any agent that arrests, chemically or mechanically, the flow of blood from an open vessel. 2. An instrument for arresting hemorrhage by compression of the bleeding vessel.
1. Arresting the flow of blood within the vessels. 2. SYN: antihemorrhagic.
SYN: styptic (2). [ hemo- + G. styptikos, astringent]
Bleeding into the pancreatic duct, usually as a result of trauma, tumor, inflammation, or pseudoaneurysm associated with pseudocyst.
The record produced by hemotachometer. [hemo + tachos + G. gramma, something written]
An instrument for measuring the rapidity of the flow of blood in the arteries. SYN: hematachometer. [ hemo- + G. tachos, swiftness, + metron, measure]
Blood in the pleural cavity. SYN: hemathorax.
Any substance that causes destruction of red blood cells, including various hemolysins; usually used with reference to substances of biologic origin, in contrast to chemicals. ...
The nutritive materials supplied to the embryos of placental mammals through the maternal bloodstream. Cf.:embryotroph, histotroph. [ hemo- + G. trophe, food]
Pertaining to the mechanism by which a substance in or on blood cells, especially the erythrocytes, attracts phagocytic cells; the latter change direction and migrate toward the ...
The presence of blood in the middle ear. SYN: hematotympanum.
Parasitic in the blood of vertebrates; denoting certain protozoa. SYN: hematozoic.
A blood-dwelling parasitic animal such as the trypanosomes or microfilariae of Wuchereria or Brugia. SYN: hematozoon. [ hemo- + G. zoon, animal]
Abbreviation for hereditary erythroblastic multinuclearity associated with positive acidified serum. See H. cells, under cell.
Lawrence J., U.S. biochemist, 1878–1942. See H.-Hasselbalch equation.
Wilhelm, German anatomist, 1834–1896. See H. space.
Friedrich G.J., German anatomist, pathologist, and histologist, 1809–1885. See crypts of H., under crypt, H. ampulla, H. ansa, H. glands, under gland, H. fissures, under ...
The leaves of the Egyptian privet, Lawsonia inermis; used as a cosmetic and hair dye. [Ar. h.]
Camille, Belgian otologist, 1867–1958. See H. sign.
Eduard H., German pediatrician, 1820–1910. See H. chorea, H. purpura, H.- Schönlein purpura, H.- Schönlein syndrome, Schönlein-H. syndrome.
SYN: goundou. [native term on the Gold Coast (Ghana) meaning “dog-nose”]
Victor, French 20th-century biochemist. See Michaelis- Menten equation, H.-Michaelis- Menten equation.
James Paget, U. S. physiologist, *1914. See H.- Gauer response.
Joseph, U.S. physicist, 1797–1878. See Dalton-H. law.
William, British chemist, 1774–1836. See H. law.
The unit of electrical inductance, when 1 V is induced by a change in current of 1 A/sec. [ Joseph H.]
K., German internist, *1907. See Krebs-H. cycle.
Victor, German anatomist and physiologist, 1835–1924. See H. canal, H. cell, H. disk, H. duct, H. knot, H. line, H. node, H. stripe.
Friedrich W., German anatomist, 1719–1745. See H. ligament.
Acronym that stands for High-Efficiency Particulate Air and for High-Efficiency Particulate Arrestor. HEPA filters are used for isolation and immunocompromise units, operating ...
A family of lipid-containing icosahedral DNA-containing viruses 42 mm in diameter whose genome consists of a single molecule of noncovalently closed, circular DNA that is ...
SYN: liver. [L. borrowed fr. G. h., gen. hepatos, the liver]
- h. lobatum a fissured liver, from the scars of healed syphilitic gummas.
An enzyme that participates in the stepwise degradation of heparan sulfate; heparan N-sulfatase hydrolyzes the sulfate moiety attached to the amino group of the glucosamine ...
An anticoagulant (anti-clotting) medication. Heparin is useful in preventing thromboembolic complications (clots that travel from their site of origin through the blood stream to ...
A newer form of the drug heparin (brand name: Lovenox, Fragmin) that has a lower molecular weight than normal heparin. Fewer blood tests are needed, and it may be . superior to ...
The presence of demonstrable levels of heparin in the circulating blood.
To perform therapeutic administration of heparin.
A heteropolysaccharide that has the same repeating disaccharide as heparin but with fewer sulfates and more acetyl groups; accumulates in individuals with certain types of ...
Removal of the liver, whole or in part. [hepat- + G. ektome, excision]
Relating to the liver. [G. hepatikos]
An artery that distributes blood to the liver, pancreas and gallbladder as well as to the stomach and duodenal portion of the small intestine.
Hepatic ductular hypoplasia, syndromatic
Also called Alagille syndrome or arteriohepatic dysplasia, this is a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, ...
The most common benign tumor of the liver. It is made up of small blood vessels and is 4-6 times more common in women than men (female hormones may promote their formation and ...
One of the veins which drains blood from the liver.
Establishment of a communication between the hepatic ducts and the duodenum. SYN: hepatoduodenostomy. [hepatico- + duodenostomy]
Establishment of a communication between the hepatic ducts and the intestine. SYN: hepatocholangioenterostomy. [hepatico- + enterostomy]
Establishment of a communication between the hepatic duct and the stomach. [hepatico- + gastrostomy]
Removal of a stone from a hepatic duct. [hepatico- + G. lithos, stone, + tome, a cutting]
The crushing or fragmentation of a biliary calculus in a hepatic duct. [hepatico- + G. lithos, stone, + tripsis, a rubbing]
Establishment of an opening into the hepatic duct. [hepatico- + G. stoma, mouth]
Incision into the hepatic duct. [hepatico- + G. tome, incision]
Inflammation of the liver, due usually to viral infection but sometimes to toxic agents. [hepat- + -itis] Previously endemic throughout much of the developing world, viral h. now ...
Hepatitis A immunization
When immediate protection against hepatitis A (infectious hepatitis) is needed, immunoglobulins are used. Protection is effective only if given within 2 weeks of exposure and ...
Hepatitis B immunization
Hepatitis B (hep B) vaccine gives prolonged protection, but 3 shots over a half year are usually required. In the U.S., all infants receive hep B vaccine. Two vaccines ...
Liver inflammation due to the hepatitis D virus (HDV), which only causes disease in patients who already have the hepatitis B virus. Transmission is via infected blood, needles, ...
Hepatitis D, E, F, and G
Lesser known (than hepatitis A, B, and C), the most significant of these seems to be type D, or the delta agent, which only causes disease in the presence of the hepatitis B ...
A rare form of liver inflammation caused by infection with the hepatitis E virus (HEV). It is transmitted via food or drink handled by an infected person, or through infected ...
A rare form of liver inflammation caused by infection with the so-called hepatitis F virus, which may be a mutation of hepatitis B. There is no vaccine or treatment for hepatitis ...
Hepatitis, non-A, non-B
The old name for hepatitis C when the causative virus had not been identified but it was known not to be hepatitis A or B.
Hepatitis (inflammation of the liver) caused by an industrial chemical such as carbon tetrachloride or phosphorus.
Liver inflammation caused by viruses. Specific hepatitis viruses have been labeled A, B, C, D, E, F, and G. While other viruses, such as the mononucleosis (Epstein-Barr) virus ...
Conversion of a loose tissue into a firm mass like the substance of the liver macroscopically, denoting especially such a change in the lungs in the consolidation of pneumonia.
Having to do with the liver plus the gallbladder, bile ducts, or bile. For example, MRI (magnetic resonance imaging) can be applied to the hepatobiliary system. Hepatobiliary ...
A malignant tumor of the liver. Hepatoblastoma occurs almost exclusively in young children, more commonly in boys than in girls. The diagnosis of hepatoblastoma is usually made ...
Protrusion of part of the liver through the abdominal wall or the diaphragm. [ hepato- + G. kele, hernia]
A tumor in which the cancer starts during adulthood in cells in the liver. Also called adult primary liver cancer. Primary liver cancer is different from cancer that has ...
SYN: hepaticoenterostomy. [ hepato- + G. chole, bile, + angeion, vessel, + enteron, intestine, + stoma, mouth]
Union of the hepatic duct to the jejunum. [ hepato- + G. chole, bile, + angeion, vessel, + jejunostomy]
Relating to the gallbladder, or to both liver and gallbladder. [ hepato- + G. kystis, bladder]
A genus of blood-parasitizing hemosporines (family Plasmodiidae) with gametocytes in red cells and cystlike exoerythrocytic schizonts in the liver parenchyma; parasitic in Old ...
Relating to the liver and the intestine. [ hepato- + G. enteron, intestine]
Away from the liver, usually referring to portal blood flow.
Radiography of the liver. [ hepato- + G. graphe, a writing]
Rarely used term for congestion of the liver. [ hepato- + G. haima, blood]
Resembling or like the liver. [ hepato- + G. eidos, resemblance]
An apparatus for the quantitative control and measurement of the pressure and force applied over the liver to test the hepatojugular reflux. [ hepato- + L. jugulum, throat, + ...
SYN: hepatosplenography. [ hepato- + L. lien, spleen, + G. graphe, a writing]
A concretion in the liver. [ hepato- + G. lithos, stone]
Removal of a calculus from the liver. [ hepato- + G. lithos, stone, + ektome, excision]
Presence of calculi in the liver. [ hepato- + G. lithiasis, presence of a calculus]
The branch of medicine concerned with diseases of the liver. [ hepato- + G. logos, study]
A cytolysin that destroys parenchymal cells of the liver.
See malignant h.. [ hepato- + G. -oma, tumor]
- malignant h. SYN: hepatocellular carcinoma.
Softening of the liver. [ hepato- + G. malakia, softening]
An enlarged liver. “Hepato-“ comes from the Greek “hepatikos” (of the liver) + “megaly” from the Greek “megas” (big or great) = bigness of the liver.
Heavy pigmentation of the liver. [ hepato- + G. melas, black, + -osis, condition]
Umbilical hernia with involvement of the liver. SYN: hepatomphalos. [ hepato- + omphalocele]
Enlargement of both liver and kidney or kidneys. [ hepato- + G. nephros, kidney, + megas, great]
Disease of the liver. [ hepato- + G. pathos, suffering]
Toward the liver, usually referring to the normal direction of portal blood flow.
Anchoring of the liver to the abdominal wall. [ hepato- + G. pexis, fixation]
Rounded or nodular tumor of the liver. [ hepato- + G. phyma, tumor]
Relating to the liver and the lungs. SYN: hepaticopulmonary, hepatopulmonary. [ hepato- + G. pneumonikos, pulmonary]
A downward displacement of the liver. SYN: wandering liver. [ hepato- + G. ptosis, a falling]