132. OXYGEN CONSUMPTION: NERVE TISSUE, 

 INCLUDING RETINA 



Values are the cu mm oxygen consumed per mg dry weight of tis- 

 sue per hour (oxidation quotient, -Qog)- Fresh tissue is im- 

 mersed in a buffered mediijm (phosphate or bicarbonate) in a 

 closed chamber containing oxygen at < 1 atmosphere pressure, 

 and maintained at ±57° C. The decrease in amount of gaseous 

 O2, as it is used by the tissue, is measured. The minus sign 

 preceding the symbol Qog indicates by convention that O2 dis- 

 appears. As the rate of oxidation is limited by the amount of 

 oxidizable nutrient available to the tissue, glucose or other 

 nutrient may be added to the medium. 



Animal and Tissue 



6 



7 



£ 



9 

 10 



11 



117 



Brain, chick embryo 

 Cerebral cortex, man 

 Cerebral cortex, cat 

 Cerebral cortex, dog 

 Cerebral cortex, guinea pig 



Cerebral cortex, 

 Cerebral cortex, 

 Cerebral cortex. 

 Cerebral cortex. 

 Cerebral cortex, 



Cerebral cortex, 



12 Cerebral cortex, 



13 Cerebral cortex, 

 lU Cerebral cortex, 

 I5I Cerebral cortex, 



16 

 17 

 l£ 



19 

 20 



21 

 22 



23 



2l| 



25 



26 

 27 

 28 



29 



30 



51 

 32 

 33 

 5^ 



guinea pig 



monkey 



mouse 



pig, 29-60 da fetus 



pig, 99 da fetus 



pig, birth to adult 



pigeon 



rabbit 



rat, 5 da 



rat, 50 da 



Cerebral cortex, rat, adult 

 Ganglion, celiac, rabbit 

 Ganglion, dorsal root, rat 

 Ganglion, trigeminal, sheep 

 Hippocampus, frog 



Hypothalamus, rat 

 Medulla, cat 



Medulla, rat, 5 da 



Medulla, rat, 50 da 



Medulla, rat, adult 



Nerve, sciatic, frog 

 Nerve, trigeminal, sheep 

 Retina, dog 

 Retina, frog 

 Retina, ox 



Retina, pig 

 Retina, rat 

 Spinal cord, cat 

 Spinal cord, frog 



Medium 



HI 



Serum 



Ringer glucose 

 Ringer glucose 

 Ringer glucose 

 Saline 



Saline glucose 

 Ringer glucose 

 Ringer solution 

 Ringer solution 

 Ringer solution 



Ringer solution 

 Saline glucose 

 Ringer glucose 

 Ringer glucose 

 Ringer glucose 



Ringer glucose 



Serum 



Ringer solution 



Ringer solution 



Ringer solution 



Ringer glucose 

 Ringer glucose 

 Ringer glucose 

 Ringer glucose 

 Ringer glucose 



Ringer solution 

 Ringer solution 

 Ringer glucose 

 Ringer glucose 

 Ringer glucose 



Ringer glucose 

 Ringer glucose 

 Ringer glucose 

 Ringer glucose 



-Q02 



m 



25 



6.0-10.3 

 8.5-12.2 



6.7 



6.9 



11.7 



J.k-ll.Q 

 11.0 

 5.5 

 6.5 



8.5 



U.6 



7. 3-10. 1^ 



6.2 



114-.7 



8.5-17.1 

 k.O 

 8.0 

 0.5 

 2.1+ 



10.4 



3.5 



3A 



9.0 



2.5-4.9 



0.3 

 0.5 



20.8 



3.5 

 10.7 



17.7 

 22.0-32 



1.3 

 2.3 



227 



