CELLA 



276 



CELOLOGY 



lying between the mucous cells and the basement 

 membrane. They play an important part in the func- 

 tional activity of the gland. C. -Doctrine, the theory 

 that the cell is the unit of organic structure, and that 

 cell-formation is the essential process of life and its 

 phenomena. C, Edison-Lalande, a variety of cell 

 used in making galvanic batteries. C, Electrolytic, 

 a cell or vessel containing an electrolyte, in which 

 electrolysis is carried on. C, Endothelial, one of 

 those lining the intima of the blood-vessel system. 

 C, Epidermic, or Epithelial, one of those covering 

 the membranes of the free surface of the body. C, 

 Ethmoidal, any one of the cellular cavities of the 

 lateral masses of the ethmoid bone. Called also 

 ethmoidal sinuses. C, Ganglion, a cell of the gray 

 matter of the brain or spinal cord. C. of Giannuzzi. 

 See C. , Demilune. C, Giant, any polynucleated body 

 of protoplasmic matter occurring in tuberculosis, sar- 

 coma, etc. C. -globulins, Halliburton's name for 

 forms of globulin that occur in lymph-corpuscles and 

 extracted from them by solutions of sodium chlorid. 

 C, Goblet, a form of epithelial cell. C, Gowers's, 

 an apparatus for counting blood-corpuscles. C., Gre- 

 net, a variety of open cell used in making galvanic 

 batteries. C, Grove, a two- fluid battery cell, the 

 fluids being dilute sulphuric and nitric acids and the 

 metals immersed in them respectively zinc and plati- 

 num. C. -islets, the centers of most active growth 

 and proliferation in young cellular tissues. They 

 contain the stores of nutriment that are gradually dis- 

 solved and digested. C., Law, a variety of cell used 

 in making galvanic batteries. C, Leclanche, a 

 variety of cell used in making galvanic batteries. It 

 may be made as a liquid cell or as a dry cell, the latter 

 being preferable. C., Lymphoid, a large ameboid 

 cell. C, Mother-, a cell that divides its protoplasm 

 and gives each part a new cell-wall. C., Mounting. 

 See Mounting-cell. C. -Multiplication, Cytogenesis, 

 a name given to the process of reproduction of cells. 

 It may be endogenous, as when the cell-contents break 

 up by segmentation into separate nucleated masses 

 within the cell-wall ; gemmiparous, as when new cells 

 bud from the mother-cell ; and Jissiparous, as when 

 the mother-cell divides by cleavage into two or more 

 cells. C, Neuro-muscular, a name given to certain 

 cells of lower life-forms, that act in part as nerves 

 and in part as muscles. C. -nests, Epidermic Pearls : 

 globular masses of flattened cells contained in epithe- 

 liomata. C., Olfactory, any one of the cells that lie 

 between the network of epithelial cells in the nasal 

 fossae. They consist of a body and two processes, 

 one running outward to the surface of the mucous 

 membrane, the other running inward and connected 

 with filaments of the olfactory nerve. C. -parasite, 

 in biology, applied to any one of various micropara- 

 sites, as, e.g., a coccidium, living within a cell. C- 

 sap, in biology, the more fluid portion of the cell-con- 

 tents. C. of Schultze. Same as C, Olfactory. C, 

 Seminal, any one of the epithelial cells contained in 

 the membrana propria and constituting the seminal 

 tubes. C. , Sphenoidal, one of the two large cavities 

 in the interior of the body of the sphenoid bone. C, 

 Squamous, a variety of epithelial cells. C, Stam- 

 mer's, a variety of cell used in making galvanic 

 batteries. C. -substance, in biology, the material 

 composing a cell. C, Thoma-Zeiss. Same as C, 

 Abbe-Zeiss. C, Vasofactive, or Vasoformative, a 

 cell that in embryonic or very early life, and probably 

 in certain neoplasms, anastomoses with other similar 

 cells so as to form blood-vessels. 

 Cella (sel'-ah) [L.]. A portion of the paracele extend- 

 ing caudad from the porta. C. lateralis, the lateral 



ventricle of the brain, or one of its cornua. C. media, 

 the central cornu of the lateral ventricle, or that part 

 of the ventricle whence the cornua extend. 



Cellaeform (seF-e-form) [cella, a cell ; forma, shape]. 

 Resembling a cell, but not such morphologically. Cf. 

 Celliform. 



Celliferous {sel-if-er-us) [cella, cell; ferre, to bear]. 

 Producing, forming, or bearing cells. 



Celliform (sel f -ifonn). See Cellaform. 



Celloid (seF-oid) [cella, a cell ; eldor, form]. Resem- 

 bling a cell. 



Celloidin {sel-oid'-in). A concentrated form of collodion 

 for use in imbedding objects for histologic purposes. 



Cellula {sel'-u-lah). See Cellule. 



Cellulae gangliosae. Ganglion cells, or mesodermal 

 nerve cells ; neuroblasts. C. palpantes, tactile 

 cells. 



Cellular {sel f -u-lar) [cella, cell]. Relating to or com- 

 posed of cells. C. Cartilage, cartilage composed 

 mainly of large cells, with but little intercellular sub- 

 stance. C. Membrane, C. Tissue, areolar tissue; 

 bony connective tissue ; cancellous tissue. C. Ther- 

 apy, the name applied by Aulde to the method in 

 therapeutics of exhibiting properly-selected medica- 

 ments with a view to restoration of cell-function. It 

 aims to apply scientifically those remedies that expe- 

 rience has shown to possess special curative properties 

 in the restoration of disordered functions. 



Cellule {sel'-ul) [cellula, a small cell]. A small cell 

 or cavity. 



Celluliferous (sel-u-lif '-er-us) [cellula, a little cell ; 

 ferre, to bear]. In biology, producing small cells. 



Cellulitis (sel-u-W '-tis\ [cellula, a small cell ; trig, in- 

 flammation]. A diffuse inflammation of cellular tis- 

 sue. C, Pelvic. See Parametritis. 



Celluloid (seF -u-loid)[cellula, a little cell ; elSoc, form]. 

 A valuable product of the action of camphor upon 

 pyroxylin. It is prepared in a great variety of forms, 

 both transparent and opaque, colored uniformly or 

 mottled and striated. It cannot be caused to explode 

 by heat, friction, or percussion. When brought into 

 contact with flame it burns like paper. It dissolves in 

 warm, moderately concentrated sulphuric acid, and is 

 also soluble in glacial acetic acid, rapidly in warm, 

 moderately concentrated nitric acid (four volumes of 

 fuming acid to three of water), and in a hot, concen- 

 trated solution of caustic soda. The density of cellu- 

 loid ranges from 1. 310 to 1.393. When heated to 125 

 C. it becomes plastic and can be moulded into any de- 

 sired shape. Separate pieces can also be welded 

 together by simple pressure at this temperature. It is 

 useful in various ways in surgery. It is used some- 

 times to form a plastic base for artificial teeth, known 

 by various names, as "Rose Pearl," "Pyroxylin," 

 etc. See Zylonite. 



Cellulose {sel f -u-los) [cellula, a little cell], C 12 H 20 O 10 . 

 Wood fiber ; lignose. The principal ingredient of the 

 cell-membranes of all plants. It is a white, amorphous 

 mass, insoluble in most of the usual solvents. In 

 biology, the primary substance of organic cell-walls, 

 characteristic of plant-cells, but found in the. Tunicata 

 among animals. It is dissolved by Schweitzer's re- 

 agent (ammonium-cupric-oxid) and decomposed by 

 several forms of bacteria, e.g., Bacillus butyricus, 

 Prazmowski ; Bacterium gummis , Comes, and Bacteri- 

 um putredinis, Davaine. To stain. — Use Grenadier's 

 Alcoholic Borax-Carmin , Ehrlich's or Delafield'l 

 Hematoxylin, Methyl-Green, Methylene-Blue, Safra 

 nin, Fuchsin, Chlor. Zinc, Iodin, Phloroglucin , 

 Anilin, Chlorid. See, also, Carbohydrates, Table of. 



Celology (sel-ol'-o-je) [xifkq, hernia ; Myoc, science]. 

 That branch of surgical science that treats of hernia. 



