256 GLOSSARY. 



Malpig'hian Bod'ies. [So called in honour of Malpighi, a celebrated Italian 

 anatomist.] A term applied to small bodies or corpuscles found in the 

 kidney and spleen. 



Manu'brium. [Lat. a " haft," a " handle."] Name given to the upper por- 

 tion of the breast bone. 



Mar'garin. One of the three chief constituents of fat. 



Mas'seter. [From the Gr. massaomai, to " chew."] One of the muscles of 

 mastication. 



Mas'toid. [From the Gr. mastos, the "breast," and eidos, "form," "resem- 

 blance."] Shaped like the breast. 



Ma'trix. [Lat.] The womb. Producing or containing substance. 



Max'illary. [From the Lat. maxilla, a "jaw."] Pertaining to the maxillce 

 or jaws. 



Mea'tus. [From the Lat. meo, meatum, to "pass."] A passage or 

 canal. 



Medul'la Oblonga'ta. [Lat.] The " oblong marrow " ; that portion of the 

 brain which lies within the skull, upon the basilar process of the occip- 

 ital bone. 



Meibo'mian. A term applied to the small glands between the conjunctiva 

 and tarsal cartilages, discovered by Meibomius. 



Mes'entery. [From the Gr. mesos, "middle," and enteron, the "intestine."] 

 A duplicature of the peritoneum covering the small intestine, which 

 occupies the middle or centre of abdominal cavity. 



Mes'oblast. [From the Gr. mesos, " middle," and blastos, a " germ " or 

 " sprout."] The middle layer of the germinal membrane. 



Mesoco'lon. A duplicature of the peritoneum covering the colon. 



Metab'olism. [From the Gr. metabole, "change."] The changes taking 

 place in cells, whereby they become more complex and contain more 

 force, or less complex and contain less force. The former is constructive 

 metabolism, or anabolism ; the latter, destructive metabolism, or katab- 

 olism. 



Metacar'pus. [From the Gr. meta, "after," and karpos, the "wrist."] The 

 part of the hand comprised between the wrist and fingers. 



Metatar'sus. [From the Gr. meta, " after," and tarsos, the " instep."] That 

 part of the foot comprised between the instep and toes. 



Mi'tral. Resembling a mitre. 



Mo'lar. [From the Lat. mola, a " mill."] A term applied to the teeth which 

 bruise or grind the food. 



Molec'ular. Pertaining to molecules. 



Mol'ecule. [From the dim. of Lat. moles, a " mass."] The smallest quantity 

 into which the mass of any substance can physically be divided. A 

 molecule may be chemically separated into two or more atoms. 



Mo'tor Oc'uli. [Lat.] Mover of the eye. 



Moto'rial. That which causes movement. 



Mu'cin. The chief constituent of mucus. 



Mu'cous. A term applied to those tissues that secrete mucus. 



Myocar'dium. [From the Gr. mys, myos, a " muscle," and kardia, the " heart."] 

 The muscular structure of the heart. 



