12 Male Reproductive System

The male reproductive system is composed of the testes, genital ducts, accessory glands and penis. The seminiferous tubule consists of fibrous tunica propria

and

a

seminiferous

epithelium.

The

seminiferous epithelium consists of two types of cells: spermatogenic cells and supporting cells (Sertoli cells ) . The spermatogenic cells include spermatogonium, primary spermatocyte, secondary spermatocyte, spermatid and sperm.

Tunica albuginea

Seminiferou s tubule

Specimen NO.57

Testis

HE stain, low magnification

spermatogoniu m

Primary spermatocyte

spermatid

Specimen NO. 57. Section of Testis. showing seminiferous tubule

spermatozoo n Sertoli cell

Specimen NO. 57. Seminiferous tubule of testis HE stain

Between the seminiferous tubule there are some loose connective tissue which is called interstitial tissue of testis. In the interstitial tissue of testis there are some interstitial cells (Leydig cell ) which can secrete androgen.

Interstitia l cells

①

Specimen NO. 57. Section of Testis. ① Seminiferous tubule HE stain,high magnification

①

Rete testis

Connectiv e tissue

Rete testis

Specimen NO. 57.

Rete testis of mediastinum HE stain

The epididymis consists of efferent

ductulus and

ductus epididymis . The epithelium of efferent ductulus consists of high columnar cells and lower columnar cells. So the surface of the lumen is not even. The ductus epididymis is lined by pseudostratified columner epithelium with stereocilia.

Specimen NO. 57. Section of epididymis. showing efferent ductule

stereocilia

Specimen NO. 57. Section of epididymis.showing ductus epididymis

Prostate. The glandular epithelia vary from low cuboidal, high columnar

to

pseudostratified columnar. In some

lumen you can see prostatic concretion.

③

① ②

Specimen NO. 59. ①glandular epithelium

Prostate gland HE stain, high magnification ② lumen

③ prostatic concretion