TISSUES. 



61 



As to form, epithelial glands are classified as 

 i. Simple. 



(a) Simple tubular gastric glands, sweat 

 glands, and uterine glands. 



alveolar Stmfile cdoeolarr 



Fig. 28. Diagram of different forms of glands. 



(b) Simple alveolar smallest sebaceous 

 glands, and skin glands in amphib- 

 ians. 

 2. Compound. 



(a) Compound tubular kidney, liver, testis. 



