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The testicle is both an exocrine and endocrine gland. Its exocrine activity consists in producing sperm cells, which are led from the testicle by a complex network of ducts (seminal tubes, epididymis, vas deferens). Testicular endocrine secretions (testosterone and other male hormones) come from the tissue located between the seminal tubes.
Crédit: Album / Universal Images Group
Taille de l'image: 2752 × 2752 px | 21.7 MB
Taille d'impression: 23.3 × 23.3 cm | 1083.5 × 1083.5 in (300 dpi)