Self-awareness and familiarity with sexual anatomy can make you a much better lover. Knowing where your partner's most sensitive areas are, how those spots respond to stimulation and touch enables you to give him maximum pleasure. Unlike women, it is a lot easier for men to understand their sexual anatomy since theirs are very visible and hang outside the body. This session is split into the external and internal male sexual organs.
External Organs
The penis and scrotum make up the external sexual organs of men. The penis' functions are for urination, depositing of semen in the vagina, and sex. The size of penises varies among men and races, but that's not the purpose of this section. The penis is covered by muscles and filled with a network of blood vessels as well as blood spaces (which become filled and expands the penis during erection). The penis skin is thin and stretchy. It is supplied with lots of sensory nerves (especially the glan).
The glans is clearly visible in illustration as the head of the penis. The glans in uncircumcised men is usually covered by the prepuce. The glans is highly sensitive, as is the corona, the ridge of flesh that connects the glans to the shaft of the penis.
During intercourse, the foreskin retracts and exposes the glan just like for a circumcised glan as can be seen in the picture to your left. Circumcised men have less sensitive glan since the exposed glan constantly rubs against their underwear or clothing. While uncircumcised men have a more sensitive glan they have to deal with a substance with the texture of cheese secreted by glands on each side of the frenulum in uncircumcised men, the smemga.
The scrotum is a sac that hangs behind and below the penis, and contains
the testes, the male sexual glands. The scrotum's primary function is
to maintain the testes at approximately 34 C, the temperature at which
the testes most effectively produce sperm. It is made up of a layer of
contractile muscle covered by a pouch of thin, loose skin. It's divided
into two compartments, each hold a testicle (see below). When the temperature
drops, the scrotum draws closer to the body to maintain that temperature
so that the testicles don't get cold.
Internal Organs
The vocabulary terms below help explain the male internal sexual organs. Besides the prostate gland which can be compared the female's G-spot the majority of the male internal organs are geared toward reproduction
Testes, Testicles
The male sexual glands, the two testes within the scrotum produce sperm and testosterone. Within each testis is a kilometer of ducts called the seminiferous tubules, the organs which generate sperm. Each testicle produces nearly 150 million sperm every 24 hours.
Epididymis
The epididymis is a 'holding pen' where sperm produced by the seminiferous tubules mature. The sperm wait here until ejaculation or nocturnal emission.
Vas deferens
The ducts leading from the epididymis to the seminal vesicles. These are the ducts that are cut during the procedure known as vasectomy.
Seminal vesicles
The seminal vesicles produce semen, a fluid that activates and protects the sperm after it has left the penis during ejaculation
The Prostate gland
Also produces a fluid that makes up the semen. The prostate gland also squeezes shut the urethral duct to the bladder, thus preventing urine from mixing with the semen and disturbing the pH balance required by sperm.
Corpa cavernosa
The corpora cavernosa are the two spongy bodies of erectile tissue on either side of the penis which become engorged with blood from arteries in the penis, thus causing erection.
Ejaculatory Ducts
The path through the seminal glands which semen travels during ejaculation.
Cowper's Glands
The Cowper's glands secrete a small amount of pre-ejaculate fluid prior to orgasm. This fluid neutralizes the acidity within the urethra itself.