DEVELOPMENT OF TESTES AND SCROTUM 



13 







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Photomicrographs Showing Histological Changes during the Development of the Tunica 



Dartos Muscle. (130x). 



(Note the increase in size of the strands of smooth muscle.) 



The Ram The Bull The Boar 



E!S Ure In — K L b i rth Figure 21 — 63 days Figure 24 — 61 days 



I & Ure ™~ ,12 ^ ays Figure 22—104 days Figure 25— 84 days 



figure 20— 189 days Figure 23 — 261 days Figure 26 — 147 days 



