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Stages of spermatogenesis

The maturation of germ cells occurs in cell-association stages, each with a unique group of developing cells undergoing spermatogenesis.

Human > <p>In humans, developing stages form irregularly-shaped patches that do not extend completely around the lumen.  Thus, any given cross section will contain more than one stage. There are 6 stages in humans and they are not arranged sequentially along the tubule. </p>

Human >

In humans, developing stages form irregularly-shaped patches that do not extend completely around the lumen. Thus, any given cross section will contain more than one stage. There are 6 stages in humans and they are not arranged sequentially along the tubule.

Non-human > <p>In rodents and non-human primates, the stages extend around the entire circumference of the tubule.  Thus, individual cross sections contain a single cell-association stage and they are arranged sequentially along the tubule.</p>

Non-human >

In rodents and non-human primates, the stages extend around the entire circumference of the tubule. Thus, individual cross sections contain a single cell-association stage and they are arranged sequentially along the tubule.