The tunica albuginea divides each testis into how many lobules?

1. The tunica albuginea is a tough connective tissue layer covering the testis. 2. It does not just cover the surface; it also sends septa (partitions) inward. 3. These septa divide the interior of each testis into distinct compartments. 4. 10 to 20 and 50 to 75 both understate the true number of lobules the septa create. 5. 1000 to 1200 overstates it well beyond the reported range. 6. So 300 to 400 lobules is correct. _Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 27 "The Reproductive System", p.1282 §Testes_