Testis proper: endocrine portion
Leydig (interstitial) cells constitute the endocrine portion of the testis. They produce the steroid hormone, testosterone. Steroid-secreting cells commonly have vacuoles in their cytoplasm, resulting from extraction of the lipid precursor molecules used in steroid synthesis. Blood vessels and lymphatics are abundant in the interstitium surrounding these cells. 1000x
Leydig (interstitial) cells
Leydig (interstitial) cells constitute the endocrine portion of the testis. They produce the steroid hormone, testosterone. Steroid-secreting cells commonly have vacuoles in their cytoplasm, resulting from extraction of the lipid precursor molecules used in steroid synthesis. Blood vessels and lymphatics are abundant in the interstitium surrounding these cells. 1000x
Lipid vacuoles
Leydig (interstitial) cells constitute the endocrine portion of the testis. They produce the steroid hormone, testosterone. Steroid-secreting cells commonly have vacuoles in their cytoplasm, resulting from extraction of the lipid precursor molecules used in steroid synthesis. Blood vessels and lymphatics are abundant in the interstitium surrounding these cells. 1000x
Blood vessels
Leydig (interstitial) cells constitute the endocrine portion of the testis. They produce the steroid hormone, testosterone. Steroid-secreting cells commonly have vacuoles in their cytoplasm, resulting from extraction of the lipid precursor molecules used in steroid synthesis. Blood vessels and lymphatics are abundant in the interstitium surrounding these cells. 1000x
Image source >
Image taken of a slide from the University of New England College of Osteopathic Medicine slide collection.