Till': iKi.i, 



n 



indispensable in the stndy of pathology and a brief description 

 is here appended. 



Structure — Cells are variable in structure. The active consti- 

 tuent of all animal cells is protoplasmic in nature. The essen- 

 tial parts of animal cells are the cell-body, nucleus and cenrro- 

 some. 



The cell-l)odv is present in praticallv all cells. It is com- 

 posed of semisolid protoplasm, a portion of which is (jf a stringy 



13- 

 12- 



to - 







agram of a Typu'al Cell, al't.r Ijr.hm - David off -Hub.T. 



is". l^D: 



1. Vacuoles. 



2. Cell-membrane. 



3. Exoplasm. 



4. Nuclear m.embrane. 



5. Nucleolus. 



(i, en mm at in mt-kiint. 



7. Centrosphere. 



S. I "ontrnsome. 



y. Foreign inclosurrs. 



10. Hyaloplasm, 



11. Spongioplasm. 



12. Chromatin network. 

 :3. Mnin network. 



24. INucleopiasni. 



consistency and is termed spongioplasm. In the meshes of the 

 spongioplasm there is found a fluid protoplasm, designated hya- 

 loplasm. The relative proportion of spongioplasm and hyalo- 



