| A | B |
| follicle | cavity, sac or gland |
| fontanels | soft spots of the fetal skull |
| foramen | a natural opening through bone |
| fosa ovalis | oval-shaped depression in the interatrial septum |
| mandibular fossa | depression found in the temporal bone |
| gametes | a mature sexual reproductive cell, as a sperm or egg, that unites with another cell to form a new organism |
| dorsal root ganglia | is a cluster of nerve cell bodies in a posterior root of a spinal nerve |
| gastrin | a hormone that influences gastric acid secretions |
| genetics | the study of genes |
| germinate | to begin to grow or develop |
| germinal epithelium | thickened peritoneal epithelium covering the gonad from earliest development |
| gerontology | the study of aging |
| gestation | the period of conception to birth |
| glaucoma | condition which causes gradual blindness |
| glomeruli | clusters of capillaries in the kidneys |
| glossopathy | any disease of the tongue |
| gluconeogenesis | the production of glucose from noncarbohydrate molecules |
| gluteus maximus | largest muscle of the buttocks |
| gnostic sense | a sense of awareness of self |
| gomphosis | the term applied to the joint between tooth and jaw |
| gonads | the sex organs |
| gustatory | sense of taste |
| hapten | a small molecule that can elicit an immune response only when attached to a large carrier such as a protein |
| hematocyst | a cyst containing blood |
| hemiglossal | pertaining to one-half of the tongue |
| hepatitis | inflammation of the liver |
| heterosexuality | sexual desire for a person of the opposite sex |