23 



The tendon fasciculi are somewhat swollen ; between 

 them rows of tendon cells which have taken the red color 

 will be distinctly seen ; they are oblong or square in shape, 

 with the nucleus usually at one end. Sketch two fasciculi 

 with the intervening cells. 



(g) Cross-Section of Tendon. 



The skin covering the tail of a rat was removed, the tail cut in 

 small pieces, fixed in a saturated aqueous solution of mercuric 

 chloride, washed in water, hardened in alcohol, decalcified in a \%* 

 solution of hydrochloric acid, stained in borax carmine, embedded 

 in paraffin, and cross-sectioned. Fix to the slide and mount in 

 balsam. 



-- *7 - ' 



Examine first under low power. (Four small tendons 

 will be seen in cross section) Place one of these in the 

 field, and examine under high power. Observe that the 

 tendon is surrounded by an areolar connective tissue 

 sheath. The ends of the tendon fasciculi are seen in cross 

 section. Notice the tendon corpuscles between the fascic- 

 uli; they usually have a triangular body with long 

 processes. They are stained more deeply than the fibrous 

 tissue. Sketch as seen under high power. 



DRAWINGS FOE LESSON VI. 



C*-) 





