The external structures of the male reproductive system are the penis, the scrotum and the testicles. Penis — The penis is the male organ for sexual intercourse. It has three parts: the root, which attaches to the wall of the abdomen; the body, or shaft; and the glans, which is the cone-shaped end of the penis. The glans, which also is called the head of the penis, is covered with a loose layer of skin called foreskin. This skin is sometimes removed in a procedure called circumcision. The opening of the urethra, the tube that transports semen and urine, is at the tip of the glans penis.
The male reproductive system includes the penis, scrotum, testes, epididymis, vas deferens, prostate, and seminal vesicles. The penis and the urethra are part of the urinary and reproductive systems. The scrotum, testes testicles , epididymis, vas deferens, seminal vesicles, and prostate comprise the rest of the reproductive system. The penis consists of the root which is attached to the lower abdominal structures and pelvic bones , the visible part of the shaft, and the glans penis the cone-shaped end. The opening of the urethra the channel that transports semen and urine is located at the tip of the glans penis. The base of the glans penis is called the corona. In uncircumcised males, the foreskin prepuce extends from the corona to cover the glans penis.
NCBI Bookshelf. The male sex organs allow men to have children. But they have other important jobs, too: The sex organs produce hormones, control the process of boys maturing into grown men, and make sex and sexual pleasure possible. Like women, men have external and internal sex organs.
Anthias: Born one sex this fish can change to the other. Anthias are coral reef fish. Small with elongated bodies, they range from orange, pink, purple, yellow, and they live in large schools with mainly females and a few males.