| A | B |
| hiatus of the diaphragm | the opening through which the esophagus passes |
| hippocampus of the brain | shaped like a seahorse |
| hirsuism | excessive body hair |
| histology | study of tissue |
| holocrine glands | whose secretions are whole cells |
| homeoplasia | formation of tissue similar to normal tissue |
| homocentric | having the same center |
| humoral immunity | which involves antibodies circulating in the blood |
| hyaline cartilage | has no visible fibers |
| dehydration | loss of body water |
| hypertension | excessive tension (high blood pressure) |
| hypnosis | a sleeplike state |
| hysterectomy | removal of the uterus |
| hysterodynia | pain in the womb |
| ileum | the last portion of the small intestine |
| impermeable | not able to permeate, not permitting passage |
| intercellular | between the cells |
| intercalated discs | the end membranes between adjacent cardiac muscle cells |
| intercellular | between the cells |
| intracellular | inside the cell |
| isothermal | equal or same temperature |
| jugular veins | prominent vessels int eh neck |
| juxtaglomerular apparatus | a cell cluster near to the glomeruli in the kidneys |
| kayotype | the assemblage of the nuclear chromosomes |
| keratin | the water-repellent protein of the skin |
| kilocarlories | equal to one thousand calories |