These are the minute tubules in the lobules of the testes and are lined with cells that create sperm. These tubules also contain the steroid. Each lobule in testis contains one seminiferous tubules.

SEMINIFEROUS TUBULE: "The seminiferous tubules can number up to 400 in each testes."
Cite this page: N., Pam M.S., "SEMINIFEROUS TUBULE," in, April 13, 2013, (accessed December 11, 2019).