morphometric studies were performed on 12 mammalian species ( degu , dog , guinea pig , hamster , human , monkey , mouse , opossum , rabbit , rat , stallion , and woodchuck ) to determine volume density percentage ( vv % ) , volume ( v ) , and numerical density ( nv ) of seminiferous tubule components , especially those related to the sertoli cell , and to make species comparisons .
C0036630
seminiferous tubule
C0036770
sertoli cell