STRIPED MUSCLE 



"3 



It will be seen that striped muscle, unlike the tissues 

 previously considered, does not appear to be cornposed 

 of cells, although the occurrence of nuclei seems to hint 

 at their presence. In the embryo, however, the muscle is 

 formed of ordinary nucleated cells, which, as growth goes 





Fig. 32. — A, part o. a fresh muscular fibre of a frog. B, the same after treatment 

 with distilled water followed by methyl green. 

 b, bright bands ; ti. dim bands ; «. nuclei ; J, ^. sarcolemma, rendered visible as a 

 minute blister (j*) by absorption of water and by the rupture of the muscle- 

 fibre at JT (A, from Huxley's Physiology.) 



on, increase in length while their nuclei multiply by fission, 

 each enormously elongated cell thus containing a consider- 

 able number. 



Connective Tissue. — We will next examine a piece of the 

 delicate web of connective tissue which binds the muscles 

 together. 



Under the high power, connective tissue is seen to be 



PRACT. ZOOL. I 



