i*6 



Species 



The Inorganic Components of Saliva 



Table I 



Concentration of Iodide in Saliva of 

 Different Species 



(Cohen and Myant, 1959) 

 Mixed Parotid Submandibular Sublingual Residual 



CO 



c: 

 o 



CJ 



<o- 



5 



03 



03 



10 



,03 OS 

 <0 



V 



'**•*. 



Plasma V 

 m Eq/I. 

 <0 0/ 



83 



*-- x— , 



■X-. 



-x/3'tf 



100 



200 300 400 500 

 V 



Fig. 8.9. Saliva/plasma ratios for iodide in dog parotid secretion. 



Showing also the decrease in saliva concentration caused by a raised plasma iodide (Burgen 



and Seeman, 1957)- 



to the near independence of iodide concentration on flow rate, 

 the clearance is almost linearly dependent on the flow rate. At 

 the maximum rate of saliva secretion, it amounts to more than 2 ml. 

 plasma/g. gland/min in the dog parotid, and up to 10 ml./min 

 in the human parotid (at a flow rate of 1 ml./min). In the sub- 

 maxillary gland of the dog this is the order of total blood flow 

 through the gland during activity. Towbin and Perkins (1958) have 



