Studies on camel semen. III. Ultrastructure of the spermatozoon

Abstract

Camel spermatozoa were examined by the electron microscope. They have the same general structure as that of other mammals. Certain distinguishing features noted include the components of the neck region and the disposition of the mitochondrial sheath and fibrous sheath. In addition to other components, the neck region contains a proximal centriole and a longitudinally oriented mitochondrion, i.e. there is a unilateral extension of the mitochondrial sheath into the neck region. The fibrous sheath of the principal piece appears not to terminate at the level of the annulus, but extends proximally into the middle piece.