442 GLOSSARY 



located in the vestibule of the internal ear; which communicates with 

 the middle ear or tympanum closed in life by the stapes, an ossicle 

 of the ear. (See Ossicle.) 



Ferment. (From the Latin word fermentum, "leaven, yeast.") 

 Any substance which in contact with another substance is capable 

 of setting up changes called fermentation in the latter, without 

 itself undergoing much change. Ferments are classified into unorgan- 

 ized or soluble, and organized, or living ferments. 



Fermentation. The decomposition of complex molecules of chemical 

 bodies or substances under the influence of ferments called enzymes. 



Fetus. (From the Latin word fetus, "offspring"). The unborn off- 

 spring of vivaparous (producing young in a living state) animals in the 

 later stage of development. 



FibrocartiUge. Cartilage with fibrous tissue intermixed. 



Fibrous (From the Latin word fibra, "a fiber.") Containing fibers; 

 of the character of fibrous tissue. 



Fibula. (Latin, "a buckle.") The bone on the outer side of the leg. 



Fibular. Pertaining to the fibula. 



Filiura Terminale. A long, slender thread of nerve fibers enclosed 

 by the dura mater, practically the termination of the spinal cord. 



Fimbrise (pi. of fimbria). (From the Latin word fimbria, "a fringe"). 

 A fringe. The fimbriae of the Fallopian tube; the fringe-like processes 

 of the outer extremity of the tube. 



Fimbriated. Fringed. 



Flexion. (From the Latin word flecture, "to bend.") The act of 

 bending, especially the muscular movements by which a limb or 

 joint is bent. 



Flexors. A group of muscles which bend a limb or part of the 

 body. The opposite of the extensors. 



Flexor Brevis Digitorum. The short flexor of the toes. 



Flexor Brevis Hallucis. The short flexor of the big toe. 



Flexor Brevis Minimi Digiti. The flexor of the little finger and toe. 



Flexor Brevis Pollicis. The short flexor of the thumb. 



Flexor Carpi Radialis. The flexor of the radial side of the wrist. 



Flexor Carpi Ulnaris. The flexor of the ulnar side of the wrist. 



Flexor Longus Digitorum. The long flexor of the toes. 



Flexor Longus Hallucis. The long flexor of the big toe. (See Hallux.) 



Flexor Longus Pollicis. The long flexor of the thumb. (See Pollicis.) 



Flexor Profundus Digitorum. The deep flexor of the fingers. 



Flexor Sublimis Digitorum. The superficial flexor of the fingers. 



Follicle. (From the Latin word folliculus, a dim. of follis, "bellows.") 

 Arranged in the form of a little sac, as the lymph, hair follicles, etc. 



Fontanelle. (From the Latin word fontanella, "a little fountain.") 

 A membranous space between the angles vof junction of the sutures 

 of the cranial bones in fetal life and infancy. 



Foramen Magnum. The great opening. In occipital bone. 



Foramen Ovalis. The oval opening. In the wall between the 

 auricles of the heart in the fetus, and for ten days to two weeks it 

 persists in infant hearts. 



Foramen Rotundum. The round opening. In sphenoid bone. 



Foramina or Foramen. (From the Latin word forare, to pierce.) 

 An opening or perforation, especially a bone. 



