The male reproductive system has the scrotum, testes, spermatic ducts, sex glands, and also penis. These organs work-related together to create sperm, the male gamete, and the other materials of semen. These reproductive organs likewise work together to provide semen out of the body and also into the vagina wherein it deserve to fertilize egg cells to produce offspring. Proceed Scrolling come Read an ext Below...



ongoing From Above...

Anatomy that the masculine Reproductive System


The scrotum is a sac-like organ made of skin and muscles that dwellings the testes. It is situated inferior to the prick in the pubic region. The scrotum is comprised of 2 side-by-side pouches v a testis located in each pouch. The smooth muscles that consist of the scrotum permit it to manage the distance between the testes and the remainder of the body. When the testes end up being too heat to support spermatogenesis, the scrotum relaxes to relocate the testes far from the body’s heat. Whereas the scrotum contract to relocate the testes closer come the body’s core heat when temperature drop below the ideal range for spermatogenesis.

You are watching: What structure contains enzymes needed by a sperm to penetrate an oocyte?


The 2 testes, additionally known together testicles, are the male gonads responsible because that the manufacturing of sperm and also testosterone. The testes space ellipsoid glandular organs approximately 1.5 come 2 inch long and an inch in diameter. Every testis is found inside its own pouch ~ above one side of the scrotum and is associated to the abdomen by a spermatic cord and also cremaster muscle. The cremaster muscles contract and also relax together with the scrotum to regulate the temperature that the testes. The within of the testes is split into tiny compartments known as lobules. Every lobule contains a section of seminiferous tubule lined with epithelial cells. These epithelial cells contain many stem cell that division and kind sperm cells v the process of spermatogenesis.


The epididymis is a sperm warehouse area the wraps about the superior and also posterior sheet of the testes. The epididymis is comprised of numerous feet that long, slim tubules that are tightly coiled right into a tiny mass. Sperm created in the testes moves right into the epididymis come mature before being happen on through the male reproductive organs. The length of the epididymis delays the release of the sperm and allows them time to mature.

Spermatic Cords and also Ductus Deferens

Within the scrotum, a pair the spermatic cords connects the testes to the abdominal cavity. The spermatic cords save the ductus deferens in addition to nerves, veins, arteries, and lymphatic ship that support the duty of the testes.

The ductus deferens, also known as the vas deferens, is a muscular tube that carries sperm superiorly native the epididymis into the abdominal muscle cavity come the ejaculatory duct. The ductus deferens is broader in diameter 보다 the epididymis and also uses the internal an are to store mature sperm. The smooth muscles of the walls of the ductus deferens are supplied to move sperm in the direction of the ejaculatory duct with peristalsis.

Seminal Vesicles

The seminal vesicles room a pair of lumpy exocrine glands that store and produce some of the liquid section of semen. The seminal vesicles are around 2 customs in length and also located posterior to the urinary bladder and also anterior come the rectum. The liquid created by the seminal vesicles consists of proteins and also mucus and has an alkaline pH to aid sperm make it through in the acidic setting of the vagina. The liquid additionally contains fructose to feeding sperm cell so the they survive long enough to fertilize the oocyte.

Ejaculatory Duct

The ductus deferens passes with the prostate and joins through the urethra at a structure known as the ejaculatory duct. The ejaculatory duct includes the ducts native the seminal vesicles together well. During ejaculation, the ejaculatory duct opens and also expels sperm and the secretions native the seminal vesicles right into the urethra.


Semen overcome from the ejaculatory duct come the exterior of the body via the urethra, one 8 to 10 inch lengthy muscular tube. The urethra passes with the prostate and ends in ~ the external urethral orifice located at the tip of the penis. To pee exiting the body from the urinary bladder likewise passes with the urethra.


The prostate is a walnut-sized exocrine gland that boundaries the inferior finish of the urinary bladder and also surrounds the urethra. The prostate produces a large portion of the liquid that provides up semen. This liquid is milky white in color and also contains enzymes, proteins, and also other chemistry to support and also protect sperm during ejaculation. The prostate additionally contains smooth muscle organization that can constrict to avoid the circulation of urine or semen.

Unfortunately the prostate is also an especially susceptible to cancer. Thankfully, DNA health testing can tell you whether you’re at greater genetic hazard of arising prostate cancer because of your BRCA1 and BRCA2 genes.

Cowper’s Glands

The Cowper’s glands, likewise known together the bulbourethral glands, are a pair the pea-sized exocrine glands located inferior come the prostate and anterior come the anus. The Cowper’s glands secrete a thin alkaline liquid into the urethra that lubricates the urethra and neutralizes mountain from urine continuing to be in the urethra after ~ urination. This liquid enters the urethra throughout sexual arousal prior to ejaculation come prepare the urethra for the flow of semen.


The penis is the male exterior sexual organ situated superior to the scrotum and inferior come the umbilicus. The prick is about cylindrical in shape and also contains the urethra and the external opening of the urethra. Large pockets of erectile organization in the penis permit it come fill v blood and also become erect. The erection of the penis causes it to boost in size and also become turgid. The function of the penis is to supply semen right into the vagina throughout sexual intercourse. In addition to that is reproductive function, the cock also permits for the excretion of urine through the urethra come the exterior of the body.

Erectile dysfunction is a common reproductive issue; in each decade of men’s lives, the affects about an tantamount percentage the peers. Because that instance, approximately 20% of guys in your 20s endure a level of erectile dysfunction. The price rises to 30% of guys experiencing ED symptom in their 30s, and 50% of guys in their 50s (and therefore on). Because it’s so common, the medical neighborhood has comment with increasingly convenient methods to act ED. Review our Hims ED review for an ext information.


Semen is the fluid developed by males for sex-related reproduction and is ejaculated out of the body during sexual intercourse. Semen contains sperm, the masculine reproductive gametes, along with a variety of chemicals rely in a fluid medium. The chemistry composition of semen gives it a thick, sticky consistency and a slightly alkaline pH. This traits assist semen to assistance reproduction by help sperm to continue to be within the vagina after intercourse and also to neutralize the acidic environment of the vagina. In healthy and balanced adult males, semen contains approximately 100 million sperm cells every milliliter. These sperm cells fertilize oocytes inside the woman fallopian tubes.

Physiology the the masculine Reproductive System


Spermatogenesis is the process of creating sperm and takes location in the testes and epididymis the adult males. Prior to puberty, there is no spermatogenesis because of the absence of hormone triggers. At puberty, spermatogenesis starts when luteinizing hormone (LH) and follicle stimulating hormone (FSH) room produced. LH cause the manufacturing of testosterone by the testes when FSH triggers the maturation of germ cells. Testosterone stimulates stem cells in the testes recognized as spermatogonium to experience the process of emerging into spermatocytes. Each diploid spermatocyte goes v the procedure of meiosis I and splits into 2 haploid second spermatocytes. The secondary spermatocytes go v meiosis II to kind 4 haploid spermatid cells. The spermatid cells then go through a process known together spermiogenesis whereby they grow a flagellum and develop the structures of the sperm head. After spermiogenesis, the cabinet is lastly a sperm cell, or spermatozoa. The spermatozoa space released right into the epididymis wherein they finish their maturation and also become may be to relocate on your own.

See more: Buy Ruger 22 Cal Long Rifle Mark 2 Target, Ruger Mark Ii For Sale


Fertilization is the process by i beg your pardon a sperm combines v an oocyte, or egg cell, to produce a fertilized zygote. The sperm released throughout ejaculation must first swim with the vagina and also uterus and into the fallopian tubes wherein they may discover an oocyte. After ~ encountering the oocyte, sperm next have to penetrate the external corona radiata and zona pellucida class of the oocyte. Sperm contain enzymes in the acrosome an ar of the head that enable them to permeate these layers. ~ penetrating the internal of the oocyte, the nuclei of this haploid cells fuse to form a diploid cell known as a zygote. The zygote cell begins cell department to kind an embryo.