32 



ANATOMY FOR NURSES 



[Chap. Ill 



SUMMARY 



Life activities in 

 cells 



1. Respiration 



The Human body is an enormous aggregate of cells. 



Cell membrane — may or may not be present. 



C^loplasm — distinctive name given to protoplasm that 

 surrounds nucleus. 



Nucleus — a more solid central portion surrounded by 

 a membrane. The protoplasm of the nucleus is 

 Cell . . . . ] called karyoplasm. 



Nucleolus ^ minute, spherical bodies found in nucleus. 



Centrosome — one or two extremely small bodies, sur- 

 rounded by attraction sphere, which is made up of 

 cytoplasm. Alwaj's located near nucleus. 



(Combines with oxygen = oxidation. 

 Liberates heat. 

 Carbon dioxide formed. 

 I Anabolism = building up process. 

 1 Katabohsm = breaking down process. 

 Amoeboid movements. 



fAkincsis or direct division. 

 1 Karyokincsis or indirect division. 

 Size y^Vr? to ^^ of an inch (0.008 to 0.08 mm.). 



{Pressure. 

 Movements 'of cell. 

 Growth and differentiation. 

 cells 1 Chemical composition — dependent on special work of 



cell. 

 Function — assist in work of tissue or organ of wliich 

 it forms a part. 



Metabohsm 



Reproduction 



Tissues 



Organs 



- are made up of a collection of cells of like substance, with 

 more or less intercellular substance between the cells. 



are made up of two or more tissues associated to perform a 

 common function. 



Sj'stem — a group of organs set apart to perform some 



special function. 

 Skeletal 1 

 Muscular 



System 



\ Vascular 

 Respiratory 

 AUmentary 

 Excretory 

 Nervous 



All interdependent. 



Classification offl. Epithelial, 

 tissues 1 2. Connective. 



3. Muscular. 



4. Nervous. 



