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Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Spermatogonia in interphase <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Spermatogonia in interphase

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Primary spermatocytes in prophase <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Primary spermatocytes in prophase

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Primary spermatocytes in metaphase <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Primary spermatocytes in metaphase

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Spermatids <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Spermatids

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Sertoli cells <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Sertoli cells

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Tunica propria <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Tunica propria

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Leydig cells <p>Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x</p>

Leydig cells

Primary spermatocytes, the largest cells in the spermatogenic lineage, form from mitotic division of spermatogonia in the basal compartment. Primaries migrate through the blood-testis barrier and enter a prolonged period of prophase of meiosis I. Primary spermatocytes complete meiosis I, the reductional phase, to produce haploid secondary spermatocytes. 1000x

Main Slide Spermatogonia in interphase Primary spermatocytes in prophase Primary spermatocytes in metaphase Spermatids Sertoli cells Tunica propria Leydig cells