The Reproductive System. By: Joseph Kavgaci, Layla Colombo, Josh Lopez . Male Reproductive System. to produce , maintain , and transport semen (protective fluid) and sperm (reproductive cells). discharge sperm within the female reproductive tract during sex.
By: Joseph Kavgaci, Layla Colombo, Josh Lopez
Seminal Vesicles: produce fructose that provide sperm with energy and ability to move
Prostate Gland: contributes fluid to ejaculate; help nourish sperm
Cowper’s Gland: produce a clear, slippery fluid that empties directly into the urethra; lubricates urethra and neutralizes any acidity present
Vas Deferens: long, muscular tube that travels from the epididymis to the bladder; transports sperm to urethra in preparation for ejaculation; vasectomy can be performed to prevent sperm from releasing during ejaculation
Bladder: where urine is collected for removal/excretion
Penis: male organ for intercourse; the opening in it is the urethra; when erect the flow of urine is blocked
Urethra: transports semen and urine
Epididymis: transport and store sperm cells; bring sperm to maturity; contractions during arousal force sperm into vas deferens
Testicles(testes): make testosterone and generate sperm; produce sperm cells through spermatogenesis
Scrotum: responsible for containing testicles as well as many nerves and blood vessels; also a climate control system for testes
- production or development of mature spermatozoa (male sex cells that fertilize the ovum)
- Sperm compete for entrance to egg
- with sperm penetration, egg changes characteristics
- signal causes sacs for sperm’s contents to be dumped
- contents swell and push other sperms away through cortical reaction(process that ensures only one sperm fertilizes the egg)
- once egg is fertilized, it becomes a zygote and continues to develop into a baby(eventually)
Causes of sperm problems:
Sperm is vital in the reproductive system and if it is abnormally shaped,or if there are toofew, and if the passage out of the body is blocked then there will be complications in trying to reproduce.
Erection problems are most common in adult men, and usually all men have trouble getting or keeping an erection at any point in their lives.
Causes of erection problems:
Retrograde Ejaculation occurs in less than 1% of men and with this disorder, it is difficult for a couple to conceive. The sperm in men who have this condition, is diverted during ejaculation to their bladder.
Causes of Retrograde Ejaculation:
It is one of the most common cancers found in males.
Testicular Cancer occurs when abnormal cells grow out of control in the testes. This cancer is curable but only if it is found in its early stages of development.
There are two different types of testicular cancer cells called seminomas and nonseminomas. They form from normal healthy cells that make sperm.
Symptoms of Testicular Cancer can include:
Most men can detect testicular cancer themselves, or by tests done by doctors.
Prostate cancer develops slowly but it is easily treatable if caught early on. It is developed in the prostate, which is where semen is produced. The cells that develop in the prostate due to the cancer are abnormal and the healthy cells die. The abnormal cells multiply and reproduce to form a tumor.
Symptoms of Prostate Cancer can include:
Older males are at a higher risk and should go for annual screenings when they are 50 years old.
Stage 1 : Prostate cancer is found in the prostate only and can only be detected with a digital rectal exam(DRE).
Stage 2 : The tumor formed from the cancer has enlarged, but not exceeding the prostate.
Stage 3 : The cancer has exceeded the prostate and has affecting nearby tissue.
Stage 4 : The cancer has spread to other areas of the body. (ex. bones, lymph nodes, liver, or lungs)
Maintaining female sex cells, and providing a favorable environment for the offspring by transporting oocytes to the site of fertilization are the main responsibilities of the female reproductive system.
The two ovaries are the most important aspect of the female reproductive
Ovaries are primary estrogen buckets
Once the ovaries, and the other reproductive organs, mature there comes the first reproductive cycle of a female’s life - also known as menarche.
Estrogens make sure that the accessory organs do not get too big or too small (for instance: vagina, uterus, uterine tubes, and ovaries. It also maintains and continues to develop secondary sex characteristics during the female reproductive cycle . In a female that is not pregnant the ovaries are also big holders of progesterone – promotes change in the mammary glands, and uterus during the a female's reproductive system
What Baby Looks Like
Problems with hormones can cause women to have them not working properly in the time when the egg is released from the ovary and the endometrium is thickened.
If the fallopian tubes of the female reproductive system are damaged, then the sperm and the egg may never come into contact with each other which would prevent fertilization.
Causes of Cervical Problems:
If a woman has a cervical problem then the sperm may not be able to pass through the cervical canal.
The uterus may also be damaged or have an abnormal anatomical structure. There may be polyps or fibroids on the uterus as well.
Cervical cancer forms in the cervix when the cells of the cervix become abnormal. Human Papillomavirus can cause cervical cancer, most women’s bodies prevent that from happening, but in some women the virus can survive for years causing some cells of the cervix to become cancer cells.
Symptoms of Cervical Cancer can include:
There may be no symptoms in the early stages.
Vaginal Cancer most commonly occurs on the cells lining the vagina. This cancer is rare however, and the most common way for it to form is by the spreading of cancer from another area of the body.
Symptoms of Vaginal Cancer can include:
Sites Used: http://www.fertilityfactor.com/infertility_male_infertility_retrograde_ejaculation.html