human male reproductive system parts and functions pdf

Human Male Reproductive System Parts And Functions Pdf

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Unique for its role in human reproduction, a gamete is a specialized sex cell carrying 23 chromosomes—one half the number in body cells. At fertilization, the chromosomes in one male gamete, called a sperm or spermatozoon , combine with the chromosomes in one female gamete, called an oocyte. The paired testes are a crucial component in this process, as they produce both sperm and androgens, the hormones that support male reproductive physiology.

The reproductive system is a collection of internal and external organs — in both males and females — that work together for the purpose of procreating, according to the Cleveland Clinic. Due to its vital role in the survival of the species, many scientists argue that the reproductive system is among the most important systems in the entire body. The male reproductive system consists of two major parts: the testes, where sperm are produced, and the penis, according to Merck Manuals. The penis and urethra belong to both the urinary and reproductive systems in males.

The reproductive system review

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Upcoming SlideShare. Like this presentation? Why not share! Female reproductive system presenta Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Full Name Comment goes here. Are you sure you want to Yes No. Ahmed Masuruph. Neha Mokal. Rhada Sharma.

Show More. No Downloads. Views Total views. Actions Shares. No notes for slide. Male reproductive system 1. Dio B S Accountancy 2 2. Identify the structures and major organs of the male reproductive system and describe their functions. Trace the pathway of the sperm cells in the organ system. Penis 1. Scrotum 2. Epididymis 3. Vas Deferens 4.

Accessory Glands a. Seminal Vesicles b. Prostate Gland c. Bulbourethral Glands 6. External Genital OrgansPenisScrotum 8. PenisThe penis is the organ bywhich the sperm isintroduced into thefemale. It contains spongy tissuethat becomes turgid anderect when filled withblood.

ScrotumA pouch of skin formedfrom the lower part of theabdominal wall. The scrotum keeps thetestes at a temperatureslightly cooler than bodytemperature. Testis plural testes The testes are the two-oval shaped male organsthat produce sperm andhormone testosterone. Cont…Each testis is made oftightly coiled structurescalled seminiferoustubules.

Among tubules are cellsthat producetestosterone. EpididymisThe epididymis is a tightlycoiled tubes against thetesticles. It acts as maturation andstorage place for sperm.

Adult human testicle with epididymis: A. Head of epididymis, B. Body of epididymis, C. Tail of epididymis, and D. Vas deferens Vas Deferens Ductus Deferens The vas deferens is a thintube that starts from theepididymis to the urethrain the penis. They transport spermfrom the epididymis inanticipation of ejaculation. Accessory glandsa. Seminal Vesicles These glands produce nourishing fluids for theb. Prostate Gland sperms that enter the urethra. Bulbourethral Glands Seminal VesiclesThe Seminal Vesicles aresac-like structures attachedto the vas deferens at oneside of the bladder.

They produce a stickyyellowish fluid thatcontains fructose. Prostate GlandThe Prostate Glandsurrounds the ejaculatoryducts at the base of theurethra, just below thebladder. The Prostate Gland isresponsible for making theproduction of semen, a liquidmixture of sperm cells,prostate fluid and seminalfluid.

These glands produce aclear, slippery fluid thatempties directly into theurethra. It takes place in theseminiferous tubules. These cells multiply constantly by mitosis, and each day about 3 million of them differentiate into primary spermatocytes, the cells that undergo meiosis.

The cells are still in their duplicated state, each consisting of two identical chromatids. From there, it passes into the epididymis, where it matures, becomes motile, and is stored until ejaculation. Click to see the video During orgasm, the semen is forcefully expelled from the body by strong muscular contractions of sperm ducts.

At the same time, a sphincter muscle at the base of the bladder contracts, preventing urine from leaking into the urethra from the bladder. Another sphincter also contracts, closing off the entrance of the urethra into the penis.

Simultaneously, a series of strong muscle contractions around the base of the penis and along the urethra expels the semen from the body. You are now ready for the Evaluation Test… The mitochondrion is located in which part of the sperm cell?

In which organ of the human male does the mature sperm stored for a time? Arrange the following organs in the correct sequence for the travel of sperm: epididymis, testis, urethra, vas deferens.

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Male Reproductive Function and Semen

The male reproductive system includes the scrotum, testes, spermatic ducts, sex glands, and penis. These organs work together to produce sperm, the male gamete, and the other components of semen. These reproductive organs also work together to deliver semen out of the body and into the vagina where it can fertilize egg cells to produce offspring. The scrotum is a sac-like organ made of skin and muscles that houses the testes. It is located inferior to the penis in the pubic region. The scrotum is made up of 2 side-by-side pouches with a testis located in each pouch.

The testes are the primary reproductive organs and generate sperm cells through a process called spermatogenesis. The glands of the male reproductive system produce sperm and seminal fluid. The prostate gland, the seminal vesicles, and the bulbourethral glands contribute seminal fluid to semen, which carries and protects the sperm. During sexual intercourse, semen moves through a series of ducts to deliver the semen directly into the female reproductive system. The testes or testicles are the male gonads and sit below the penis within a sac called the scrotum. They are cm long, 2. The testes generate sperm, the male sex cells, as well as testosterone and other sex hormones.

Human reproductive system

The male reproductive system includes external penis, scrotum, epididymus, and testes and internal accessory organs. These external structures are the penis, scrotum, epididymis, and testes. Male Reproductive System : Lateral view of male reproductive system with organs labeled.

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Introduction to the Reproductive System

Human reproductive system , organ system by which humans reproduce and bear live offspring. Provided all organs are present, normally constructed, and functioning properly, the essential features of human reproduction are 1 liberation of an ovum , or egg , at a specific time in the reproductive cycle, 2 internal fertilization of the ovum by spermatozoa, or sperm cells, 3 transport of the fertilized ovum to the uterus , or womb, 4 implantation of the blastocyst, the early embryo developed from the fertilized ovum, in the wall of the uterus, 5 formation of a placenta and maintenance of the unborn child during the entire period of gestation , 6 birth of the child and expulsion of the placenta, and 7 suckling and care of the child, with an eventual return of the maternal organs to virtually their original state.

Male Reproductive System

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.

These organs do the following jobs within your body:. The male reproductive system is made up of internal inside your body and external outside your body parts. Together, these organs help you urinate rid your body of liquid waste materials , have sexual intercourse and make children. Most of the male reproductive system is located outside of your abdominal cavity or pelvis. The external parts of the male reproductive system include the penis, the scrotum and the testicles. The opening of the urethra — the tube that transports both semen and urine out of the body — is located at the tip of the glans penis. The penis also contains many sensitive nerve endings.

2 comments

Leslie C.

The male reproductive system is made up of internal and external organs, including the penis, testicles and urethra. This system is responsible.

REPLY

Lucille L.

Therefore, the two main functions of the testicles are: producing sperm. (​approximately 1 million per hour) and male sex hormones (e.g. testosterone).

REPLY

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