ERG Index
GI Index

ENDO Index


Histology Study Guide
Male Reproductive System

[Female System]

Online slides of the male genital tract-- normal  |  pathology

These specimens at the Virtual Slidebox (University of Iowa Department of Pathology) may be examined with full range of magnification and movement.  Requires Java and fast internet connection


The male tract begins with the testis, leads through the windings of the epididymis, then through the vas deferens, past a gland called the seminal vesicle, through the prostate by way of the ejaculatory duct, into the prostatic urethra, and finally through the penis in the penile urethra.

The testis is a gland-like structure consisting of many seminiferous tubules embedded in relatively sparse interstitial tissue.

The initial portion of the duct which conducts sperm from the testis to the urethra is contained within the epididymis.

The vas deferens is the relatively straight, muscular portion of the duct which carries sperm cells from the epididymis to the ejaculatory duct.

The seminal vesicle is a gland which contributes most of the volume to the seminal fluid, including nutrients (notably fructose) for the sperm cells.

The ejaculatory duct passes through the prostate, beginning at the the confluence of the vas deferens with the duct of the seminal vesicle and continuing to the prostatic urethra.

The prostate is a complex of tubular glands embedded in a thick fibromuscular stroma.

The penis contains erectile tissue, a specialized arrangement of arteries, shunts, and vascular sinusoids which permit erection.

Comments and questions: dgking@siu.edu

SIUC / School of Medicine / Anatomy / David King

Last updated:  12 January 2005 / dgk