GLOSSARY 381 



Ju'gu-lar vein (Lat. jugulum, collar bone, diminutive oi jugum, yoke) : 

 one of the two large veins of the throat. 



Ka-tab'o-lism (Gr. kata, down, and ballein, to throw) : the destructive 



processes of the body; opposed to anaboiism. 

 Kid'neys : glandular structures lying in the loins opposite the lumbar 



vertebras. Their function is the purification of the blood by the 



excretion of urine. 



Lab'y-rinth (Lat. labyrinthus, a structure having many intricate pas- 

 sages) : the internal ear. 



Lach'ry-mal gland (Lat. lacrima, tear) : the gland which secretes 

 the tears. 



Lac'te-als (Lat. lacteus, milky): the lymphatic vessels which convey 

 the chyle from the alimentary canal to the thoracic duct ; so called 

 from the color of the chyle. 



La-cu/nae (Sing, lacuna, Lat., a pit) : microscopic cavities in bone 

 occupied by the bone cells. 



La-mel'lae (Sing, lamella, Lat., a small plate of metal) : layers of 

 bone tissue arranged around the Haversian canals. 



Lar'ynx (Gr. larugx) : the enlarged upper end of the windpipe, con- 

 taining the vocal cords. 



Lig'a-ment (Lat. ligare, to bind) ; a band of connective tissue bind- 

 ing one part to another. 



Liv'er : a large gland lying below the diaphragm on the right side. 

 It secretes bile and performs other functions in metabolism. 



Lum'bar (Lat,, lumbus, loin) : pertaining to or near the loins ; as the 

 lumbar arteries. 



Lymph (Lat. lympha, clear water, a fountain) : a colorless fluid filling 

 the lymphatics and lymph spaces. It consists mostly of the fluid 

 part of blood. 



lym-phat'ics : small transparent tubes arising in the tissues and con- 

 veying lymph. 



Mag-ne'si-um : a light, silver-white metal. 



Ma'lar bones (Lat. mala, the cheek bone, cheek) : the bones of the 

 cheek. 



Mal'le-us (Lat., a hammer) : the outer of the three auditory ossicles, 

 named from its shape. 



Mam'mal (Lat. mamma, the breast) : an animal of the class mam- 

 malia, the highest class 1 of vertebrates, containing all those which 

 suckle their young. 



MACY'S PHYS. 24 



