278 



ANATOMY OF THE DOMESTIC FOWL 



Fig. 77. — Histological structure of tissues. 

 '. I ; Non-striated or involuntary muscle cell. a. i, Nucleus; 2, Protoplasm. 

 b. Transverse section showing nuclei in the center of the cells that are cut 

 through the nuclear zone. c. A cross-section of the connective tissue which 

 iinds together the muscle cells, d. A section showing the so-called intercellular 

 jM-idges. 



' " 2. A cross-section of the rectus abdominalis. i. The endomysium which binds 

 ■the dells into primary fasciculi or bundles. 2, The perimysium which surround 

 .the bundles of fasciculi. 3, The epimysium which surrounds the muscle. These 

 tindirig structures are white fibrous connective tissue. 



3. A longitudinal section at the juncture of a muscle and tendon, o. The 



