248 PRINCIPLES OF PHYSIOLOGY 



Epithelium (Greek, epithemi, to place upon). A layer or 



layers of cells on a basement membrane. 

 Erythrodextrin and achroodextrin are dextrins formed from 



starch by the action of saliva. The first passes into 



sugar. 



Excretion (Latin, excernere, to separate from). 

 Fallopian Tubes. Ducts passing from the ovary to the 



uterus, 

 Fecundation (Latin, fecundare, to make fruitful). The 



blending of the male and female elements. 

 Fermentation (Latin, fervere, to boil). Changes in certain 



matters caused by enzymes or micro-organisms. 

 Fibrin (Latin, fibra, a fibre). The fibrous element in 



blood clot. 

 Fibrinogen (fibrin and, Greek, gennao, to produce). The 



substance in blood from which fibrin is formed. 



Fibrinoplastin, a globulin in blood. 

 Ganglion (Greek, ganglion, a tumour). A nodule of 



nervous matter, forming a nerve centre. In it are 



found nerve-fibres, nerve cells, and supporting tissue. 

 Gelatin (Latin, gelu, frost). A proteid found in white 



fibrous and other tissue. 

 Glycogen (Greek, glucus, sweet ; gennao, to produce). 



Animal starch, formed chiefly in the liver. 

 Haem-, Haema-, Haemato. Terms applied to substances 



derived from blood, such as Haemalin, Haematoidin. 

 Haemoglobin. The colouring matter of the blood. 

 Haemolysins. Substances that dissolve red blood cells. 

 Haematoblasts. Small bodies in blood, or blood plates. 

 Histology (Greek, histos, a web ; logos, an account). The 



structure of the tissues. 



Hormones (Greek, hormao, to arouse). Chemical sub- 

 stances formed in epithelium which excite the secre- 

 tion of glands. 

 Hyperaesthesia (Greek, huper, above ; aisthesis, sensation). 



Excessive sensibility. 

 Hypertrophy (Greek, huper, in excess ; trophe, nutrition). 



Excess of nutrition. 



