H agglutinin H and D curve H antigen H band H chain H colony H disc H fields H gene H graft H rays H reflex H shunt H substance H+ H-2 antigens H-2 complex H-ficolin H-meromyosin H-shape vertebrae H-type fistula H-type tracheoesophageal fistula H-Y antigen H. pylori Test h.d. h.r.a. h.s. h/o H2 receptor antagonists overdose H2Q HA1 virus HA2 virus HAA HAART Haase rule habena habenae habenal habenula habenulae habenula of cecum habenula urethralis habenulae perforatae habenular habenular commissure habenular nuclei habenular sulcus habenular trigone habenulointerpeduncular tract Haber Haber syndrome Haber-Weiss reaction Habermann habit habit chorea habit cough habit scoliosis habit spasm habit tic habitual abortion habituation habitus Habronema Habronema majus Habronema megastoma Habronema microstoma Habronema muscae HACEK group Hachinski Ischemic Score hacking Hadfield Hadrurus Haeckel Haeckel gastrea theory Haeckel law haem- haema Haemadipsa ceylonica Haemamoeba Haemaphysalis Haemaphysalis cinnabarina Haemaphysalis concinna Haemaphysalis leachi Haemaphysalis spinigera Haematopinus Haemobartonella Haemobartonella felis Haemococcidium Haemodipsus ventricosus Haemogamus pontiger Haemogregarina Haemonchus Haemophilus Haemophilus actinomycetemcomitans Haemophilus aegyptius Haemophilus aphrophilus Haemophilus ducreyi Haemophilus haemolyticus Haemophilus influenzae Haemophilus influenzae type b Haemophilus influenzae type B vaccine Haemophilus parahaemolyticus Haemophilus parainfluenzae Haemophilus paratropicalis Haemophilus segnis Haemoproteus Haemosporina Haenszel Haff disease Haffkine Haffkine vaccine Hafnia hafniumHf hafussi bath Hagedorn Hagedorn needle Hageman Hageman factor hagiotherapy Haglund Haglund deformity Haglund disease Hahn oxine reagent hahnemannian Haidinger Haidinger brushes Hailey Hailey-Hailey disease Haim-Munk syndrome hair hair apposition Hair bleach poisoning hair cast hair cells hair collar sign hair crosses hair cycle hair disc Hair dye poisoning hair follicle Hair loss Hair Loss Syndromes hair papilla hair root hair shaft Hair spray poisoning Hair straightener poisoning hair streams Hair tonic Hair transplant Hair Transplantation hair whorls HAIR-AN syndrome hair-on-end sign hairline fracture hairpin hairpin loops hairpin vessels hairs of head hairs of tragus hairs of vestibule of nose hairworm hairy Hairy cell leukemia hairy cells hairy heart hairy leukoplakia hairy mole hairy tongue halation halazone Halbeisen Halberstaedter Halberstaedter-Prowazek bodies Haldane Haldane apparatus Haldane effect Haldane relationship Haldane transformation Haldane tube Haldane-Priestley sample Hale colloidal iron stain Hales Hales piesimeter half amplitude pulse duration half and half nail half axial view half cystine half hapten half-axial projection half-chair form half-glass spectacles half-life half-moon half-time half-value layerHVL halfway house halibut liver oil halide haliphagia halisteresis halisteretic halitophobia halitosis halitus hallachrome Haller Haller ansa Haller anulus Haller arches Haller cell Haller circle Haller cones Haller habenula Haller insula Haller line Haller plexus Haller rete Haller tripod Haller tunica vasculosa Haller unguis Haller vas aberrans Haller vascular tissue Hallermann Hallermann-Streiff syndrome Hallermann-Streiff-François syndrome Hallervorden Hallervorden syndrome Hallervorden-Spatz disease Hallervorden-Spatz syndrome hallex hallices Hallgren Hallgren syndrome Hallopeau Hallopeau disease Hallpike hallucal hallucination Hallucinations hallucinatory neuralgia hallucinogen hallucinogenesis hallucinogenic Hallucinogens and related disorders hallucinosis hallus hallux abducto valgus deformity hallux dolorosus hallux extensus hallux flexus hallux halluces hallux malleus hallux rigidus hallux valgus hallux varus Hallé Hallé point halo halo cast halo effect halo nevus halo sign halo sign of hydrops halo traction halo vision haloalkylamines halogen halogen acne halogenation halogenoderma Halogeton halometer Haloperidol halophil halophilic halosteresis halothane hepatitis halothane-ether azeotrope Halstead Halstead-Reitan Battery Halsted Halsted law Halsted operation Halsted suture Halteridium halzoun Ham Ham test HAMA hamamelis hamartia hamartoblastoma hamartochondromatosis hamartoma hamartomatous hamartophobia hamate hamate (bone) hamatum Hamburger Hamburger phenomenon Hamilton anxiety rating scale Hamilton Anxiety Scale Hamilton depression rating scale Hamilton Depression Scale Hamilton-Stewart formula Hamilton-Stewart method HAMLET Hamman Hamman disease Hamman murmur Hamman sign Hamman syndrome Hamman-Rich syndrome Hammarsten Hammarsten reagent hammer hammer finger hammer nose Hammer toe Hammer, Claw, and Mallet Toe Surgery Hammerschlag Hammerschlag method Hammertoe hammock bandage hammock ligament Hammond Hammond disease Hampton Hampton hump Hampton line Hampton maneuver Hampton technique hamster hamstring hamstring muscles hamstring tendon hamular hamular notch hamular process of lacrimal bone hamular process of sphenoid bone hamulus cochleae hamulus hamuli hamulus lacrimalis hamulus laminae spiralis hamulus of spiral lamina hamulus ossis hamati hamulus pterygoideus Hancock Hancock amputation Hand hand arm vibration syndromeHAVS hand eczema Hand lotion poisoning Hand or foot spasms hand ratio hand rays hand region Hand Surgery Hand tremor Hand x-ray hand-and-foot syndrome Hand-Eye Coordination hand-foot syndrome Hand-Foot-and-Mouth Disease hand-foot-and-mouth disease virus hand-foot-and-mouth syndrome Hand-foot-mouth disease Hand-foot-uterus syndrome Hand-Schüller-Christian disease Handedness handicap handle of malleus handpiece handshapes HANE Hanes Hanes plot hanging columella hanging drop hanging septum hanging-block culture hangman's fracture hangnail Hangover Hanhart Hanhart syndrome Hanks Hanks dilators Hanks solution Hanlon Hannover Hannover canal Hanot Hanot cirrhosis Hansemann macrophage Hansen Hansen bacillus Hansen disease Hantaan virus Hantavirus Hantavirus Infections hantavirus pulmonary syndrome hapalonychia haphalgesia haphazard haphazard sampling haphephobia haplo- haplodont haploid haploid set haplology haploprotein haploscope haploscopic haploscopic vision Haplosporidia haplotype happy puppet syndrome Hapsburg jaw Hapsburg lip hapten hapten inhibition of precipitation haptic haptic hallucination haptodysphoria Haptoglobin Haptoglobin Test haptoglobinHP haptometer Har Harada Harada disease Harada syndrome Harada-Ito procedure Harada-Mori filter paper strip culture hard cataract hard chancre hard corn hard drusen hard of hearing hard palate hard papilloma hard paraffin hard pulse hard rays hard soap hard sore hard tissue hard tubercle hard ulcer hard water hard x-ray Harden Harden-Young ester hardened pelvis hardening hardiness Harding Harding-Passey melanoma hardness hardness scale hardware Hardy Hardy-Rand-Ritter test Hardy-Weinberg equilibrium Hardy-Weinberg law Hare Psychopathy Checklist hare's eye harelip Harlequin fetus harlequin ichthyosis harlequin reaction harmaline harman harmidine harmine harmonia harmonic harmonic imaging harmonic mean harmonic suture harmonin harmonious retinal correspondence harmony harpaxophobia harpoon Harrington Harrington-Flocks test Harris Harris and Ray test Harris hematoxylin Harris lines Harris migraine Harris syndrome Harris test Harrison Harrison groove HARS Hartel Hartel technique Hartman Hartman solution Hartmann Hartmann curette Hartmann operation Hartmann pouch Hartmann solution Hartmannella Hartnup Hartnup Disease Hartnup disorder Hartnup syndrome Hartrampf hartshorn harvest bug harvester ant hasamiyami Hashimoto Hashimoto disease Hashimoto encephalopathy Hashimoto struma Hashimoto thyroiditis hashish Hasner Hasner fold Hassall Hassall bodies Hassall concentric corpuscle Hassall-Henle bodies Hasselbalch hassium Hasson cannula Hasson trocar hatchet hatchet excavator hatching flask Hatha Yoga Haubenfelder HauchH Haudek Haudek niche Hauser haustorium haustoria haustra haustra coli haustra of colon haustral haustration haustrations of colon haustrum haustra haustus HAV Haverhill fever Haverhillia multiformis haversian haversian canals haversian lamella haversian spaces haversian system HAVS Hawkins impingement sign Hawley Hawley appliance Hawley retainer Haworth Haworth conformational formulas of cyclic sugars Haworth perspective and conformational formulas Haworth perspective formulas of cyclic sugars Haworth projection Hawthorne effect hay asthma hay bacillus Hay Fever Hayem Hayem hematoblast Hayem solution Hayem-Widal syndrome Hayflick Hayflick limit Haygarth Haygarth nodes hazard rate hazelwort Hb Hb S HbA1c HBcAb HBcAg HbChesapeake HbCO HBE HBe HBeAb HbF HBIG HBO HbO2 HBsAb HBsAg HBV HCC HCFA HCG HCG blood test - quantitative HCG in blood serum - qualitative HCG in urine HCl HCN HCS Hct HCV Hcy HD HDCV HDIA1 HDL HDR syndrome HDV He He antigens head Head and face reconstruction Head and Neck Cancer Head areas head botflies head cap head cavity head cold head fold Head injury head kidney Head lice Head lines head mirror head nurse head of caudate nucleus head of epididymis head of femur head of fibula head of humerus head of malleus head of mandible head of metacarpal head of metatarsal head of pancreas head of phalanx (of hand or foot) head of radius head of rib head of stapes head of talus head of thigh bone head of ulna head presentation head process Head Start Programs head tremors Head zones head-bobbing doll syndrome head-dropping test head-nodding head-tilt Headache headgear headgut heal healed tuberculosis healed ulcer healer healing healing by first intention healing by second intention healing by third intention health health behavior health care Health Care Financing Health Care Financing Administration HCFA Health Care Proxy Health Care, Quality of health care–associated infection health center health education Health History health indicator Health Information Management health information system Health Insurance Portability and Accountability Act HIPAA health maintenance organizationHMO health promotion Health Promotion and Education health psychology Health Resources and Services Administration HRSA health risk assessmenth.r.a. Health Services Administration health status index healthy healthy worker effect Healy criteria Heaney Heaney operation hear Hearing hearing aid Hearing Aids Hearing Disorders Hearing Impairment hearing instrument hearing level Hearing loss hearing protectors Hearing Tests with a Tuning Fork Heart heart antigen heart arrest Heart attack Heart attack first aid heart beat Heart Block Heart bypass surgery heart chamber remodeling Heart disease Heart disease and diet Heart failure heart failure cell heart hormone heart massage Heart MRI Heart Murmurs Heart murmurs and other sounds Heart palpitations heart position heart primordium heart rate heart rate turbulence heart sac heart sounds heart stroke Heart Surgery for Congenital Defects heart tamponade heart tones Heart transplant Heart Transplantation heart valve prosthesis Heart Valve Repair Heart Valve Replacement Heart valve surgery Heart-and-lung transplant heart-lung machine Heart-Lung Machines heart-lung preparation Heart-Lung Transplantation heart-shaped pelvis heart-shaped uterus heartbeat Heartburn heartwater heartworm heat heat apoplexy heat capacity heat coagulation test heat cramps Heat Disorders heat edema Heat emergencies heat exhaustion heat hyperpyrexia heat instability test Heat intolerance heat lamp heat of combustion heat of compression heat of crystallization heat of dissociation heat of evaporation heat of formation heat of solution heat of vaporization heat prostration heat rash heat rigor heat shock proteinshsp heat stroke heat treatment Heat Treatments heat urticaria heat-curing resin heat-labile heat-rigor point heat-stable heat-stable enzyme Heath-Edwards grades heatq heatstroke heaves heavy chain heavy chain disease heavy hydrogen heavy liquid petrolatum heavy metal heavy metal neuropathy Heavy Metal Poisoning heavy nitrogen heavy oxygen heavy water Hebeloma hebephrenia hebephrenic hebephrenic dementia hebephrenic schizophrenia Heberden Heberden angina Heberden nodes hebetic hebetude hebiatrics Hebra Hebra prurigo hecateromeric hecatomeral Hecht Hecht pneumonia Heck Heck disease hectic hectic flush hecto-h hectogram hectoliter hedeoma hederiform hederiform ending hedgehog protein hedonophobia Hedström Hedström file heel heel bone heel fly heel jar heel pad heel region heel spur Heel Spurs heel strike heel tap heel tendon heel-tap reaction heel-tap test heel-to-knee-to-toe test heel-to-shin test Heerfordt Heerfordt disease Heerfordt syndrome Hegar Hegar dilators Hegar sign Hegglin Hegglin anomaly Hegglin syndrome Hehner Hehner number Hehner value Heidelberger curve Heidenhain Heidenhain azan stain Heidenhain crescents Heidenhain demilunes Heidenhain iron hematoxylin stain Heidenhain law Heidenhain pouch Heidenhain variant, Creutzfeldt-Jacob disease height age height of contour height vertigo height-length index heighth heights Heilbronner Heilbronner thigh Heim Heim-Kreysig sign Heimlich Heimlich maneuver Heineke Heineke-Mikulicz pyloroplasty Heinz Heinz bodies Heinz body anemia Heinz body test Heinz-Ehrlich body Heister Heister diverticulum Heister valve HeLa HeLa cells helcomenia Held Held bundle Held decussation helianthine helical helical computed tomography helical CT helicase helices helicine helicine arteries of penis helicine arteries of the uterus helicine branches of the uterine artery helicis major (muscle) helicis minor (muscle) Helicobacter Helicobacter cinaedi Helicobacter fennelliae Helicobacter heilmannii Helicobacter pylori helicoid helicoid choroidopathy helicoid ginglymus helicopod gait helicopodia helicotrema Helie Helie bundle heliencephalitis helio- helioaerotherapy Heliobacteriosis heliopathy heliophobia heliosis heliotaxis heliotrope heliotropism heliox Heliozoea helium 3 helium 4 helium speech heliumHe helix helices hellebore helleborin helleborism helleborus Heller Heller myotomy Heller operation Heller plexus Hellerwork Hellin Hellin law HELLP syndrome Helly Helly fixative Helmholtz Helmholtz axis ligament Helmholtz energy A Helmholtz theory of accommodation Helmholtz theory of color vision Helmholtz theory of hearing Helmholtz-Gibbs theory helminth helminthagogue helminthemesis helminthiasis helminthic helminthic dysentery helminthism helminthoid helminthology helminthoma helminthophobia Helminthosporium helmintic Helmstein balloon Heloderma helper cells helper virus Helvella esculenta Helweg Helweg bundle Helweg-Larssen Helweg-Larssen syndrome hem- hemachrome hemacytometer hemacytozoon hemadostenosis hemadsorption hemadsorption virus test hemadsorption virus type 1 hemadsorption virus type 2 hemafacient hemagglutinating cold autoantibody hemagglutination hemagglutination inhibition hemagglutination test hemagglutinin hemagogic hemal hemal arches hemal gland hemal node hemal spine hemalum hemamebiasis hemanalysis hemangiectasis hemangiectatic hypertrophy hemangio- hemangioblast hemangioblastoma hemangioendothelioblastoma hemangioendothelioma hemangioendothelioma tuberosum multiplex hemangiofibroma hemangiolymphangioma Hemangioma Hemangioma excision hemangiomatosis hemangiopericytoma hemangiosarcoma hemapheic hemaphein hemapheism hemarthrosis hemastrontium hemat- hematachometer hematapostema hematein hematemesis hematencephalon hematherapy hematherm hemathermal hemathermous hemathorax hematic hematid hematidrosis hematimeter hematin hematin chloride hematinemia hematinic hematinic principle hemato- hematobilia hematobium hematoblast hematocele hematocephaly hematochezia hematochlorin hematochyluria hematocolpometra hematocolpos Hematocrit Hematocrit (HCT) hematocritHct hematocryal hematocyst hematocystis hematocyte hematocytoblast hematocytolysis hematocytometer hematocytozoon hematodyscrasia hematodystrophy hematogenesis hematogenetic calculus hematogenic hematogenous abscess hematogenous embolism hematogenous jaundice hematogenous metastasis hematogenous osteitis hematogenous pigment hematohistioblast hematohiston hematoidin hematoidin crystals hematologist hematology hematolymphangioma hematolysis hematolytic hematoma hematometra hematometry hematomphalocele hematomyelia hematomyelopore hematonic hematopathology hematopathy hematopenia hematophagia hematophagous hematophagus hematoplastic hematopoiesis hematopoietic hematopoietic gland hematopoietic system h