15G 



ANATOMY FOR NURSES 



[Chap. IX 



Life Cycle - 



Red 

 Corpuscles 



Originate in red marrow of bones. 

 Lose their nuclei before being forced into cir- 

 culation. 



I' Blood stream. 

 Disintegrate probably in I Spleen. 



I Ljniiph nodes. 



Cubic milli- 



Number 



meter 

 blood 



of 



5,000,000 for men. 



4,500,000 for women. 

 I Pathological conditions maj' cause decrease. 

 Masses of protoplasm. 



Description ' 



Animal cell 



Number 



White 

 Corpuscles 



Varieties 



Functions 



Cubic miUi- 

 mcter of ' 

 blood 



Lymphocytes 



Leucocytes 



1. Protective 

 agents 



Nucleus (sometimes two or 



three nuclei). 

 No cell wall. 

 Round or spheroidal when 



circulating in blood. 

 ssVff in. in diameter. 



f 7000 to 9000. 



1 white to 500 or 600 red. 



]\Iarkcd increase = leucocy- 



tosis. 

 . Marked decrease = leucopenia. 



f (a) Small and mononuclear. 

 I (6) Large and mononuclear. 



(a) Transition forms. 



(6) Polynuclear — form 60 to 

 75 ':'o of Ijulk of white 

 corpuscles. Eosinophiles are 

 a subgroup of this variety. 



(c) Mast cells — exist in small 

 numbers. 



(a) Form Bacteriolysitis. 

 (6) Devour bacteria = phagocy- 

 tosis. 



Life Cycle • 



2. Aid in absorption of fats and proteins. 



3. Assist in coagulation of blood. 



New leucocytes formed in lymph nodes and 

 spleen. 



(1) Battles against bacteria. 



,, , ... (2) Hemorrhage. 

 Numbers lost m { ' . „ ^- c i 



(3) Formation of granula- 



lation tissue. 



