Chap. IX] 



SUMMARY 



155 



Vascixlar System 



f Circulating 

 i Fluids 



Systems 



SUMMARY 



f Blood. 

 I Lymph. 



f Blood vascular. 

 I Lymph vascular. 



Blood 



Color 



Bright red in arteries. 

 Dark red in veins. 

 Sticky fluid. 



Specific gravity, about 1.055. 

 Description \ Alkaline reaction when tested with 

 litmus. 

 Temperature, 100° F. 

 Peculiar odor. Salty taste. 

 ^V of the body weight. 



Carries water and nutritive substances 



to the tissues. 

 Carries oxygen to the tissues. 

 Carries waste products from the tissues 



to the organs of elimination. 

 Serves as a medium for the transmission 



of secretions. 

 Aids in protecting the body from 



infections. 

 , Aids in equalizing temperature. 



' Corpuscles ( Red or erythrocytes, 



(minute, solid I White or leucocytes, 

 particles) I Blood-plates. 



Functions 



Composition \ ^, 



transparent, 

 slightly yel- 

 lowish fluid 



Water, 90 %. 



Proteins. 



Extractives. 



Inorganic salts. 



Gases. 



Enzymes. 



Immune bodies. 



Red 

 Corpuscles 



Biconcave f ^^^-g in. in diameter, 

 disks I xijW in. in thickness. 

 Description \ Packets of haemoglobhn. 

 Have no nuclei. 

 . Soft, flexible, and elastic. 



C Oxj'gen carriers. 

 Function < Color due to oxygen in combination 

 [ with haemoglobin. 



