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Male Reproductive
Male Reproductive A&P/Med Surg
Question | Answer |
---|---|
Male Reproductive System: Functions | 1) Spermatogenesis - formation of sperm 2) Regulation of male reproductive functions by the various hormones 3) Performance of the male sexual act |
The Organs | Scrotum, Testes, Ducts, Accessory Glands, Penis |
Scrotum function: | Temperature regulation and protection of the testes |
Testes function: | Sperm production & the secretion of male sex hormones |
Ducts Function: | Store & transport sperms |
Accessory Glands Function: | Secretion of the fluid part of the semen |
Spermatogenesis | The formation of sperm - Sequence of events by which spermatogonia are transformed into mature sperm or spermatozoa |
Penis Function: | Male organ of copulation |
Seminiferous Tubules | The testes are composed of these and sperm is formed here as well |
Epididymis | Sperm empties here from the Seminiferous Tubules |
Vas Deferens | Sperm empties here from the Epididymis |
Ejaculatory Duct | Two seminal vesicles, one on each side of the prostrate empty in to the prostatic end of the ampulla and empty here |
Urethra | The last connecting link from the testes to the exterior |
Glands the supply mucus to the Urethra | Urethral Glands, Bilateral Bulbourethral Glands (Cowper's Glands) located near the origin of the urethra |
Spermiogensis | Vital step of spermatogenesis - process by which the spermatids alter their shape and differentiate into sperm cells |
Spermatogenesis & Spermiogensis | Takes about 2 months (64-74 days) Produces about 400 million sperms daily Sperm is mostly stored in the vas deferens, and remain fertile for a month |
Test used to detect prostate cancer | PSA |
Often occurs with BPH and can lead to a UTI | Urinary Retention |
The best time to perform self-testicular examination is after | A shower |
An _______________testicle increases a man's risk of ______________ cancer | Undescended, Testicular |
Inflammation /infection of the prostate gland | Prostatitis |
Prostatitis is usually caused by | UTI |
Risks for developing prostate cancer | >50 years old, African American, Excessive alcohol use, High fat diet, family history, Environmental, PSA elevation |
Early prostate symptoms are | Usually non existent |
Prostate removal may result in | Impotence |
Sometimes called winter syndrome due to their frequency during cold weather | Torsion of spermatic cord |
Orchitis | Inflammation of the testes |
Diseases causing Orchitis may lead to | Sterility |
Prolonged erection | Priapism |
Priapism may occur from | Neurological damage or medications for ED |
Hypospadias | Congenital abnormality in which the urethral opening is on the underside of the penis |
Prepuce | foreskin |
Phimosis | Prepuce - foreskin will not retract |
Risks for testicular cancer | late marriage, late sex, white upper class, undescended testicle |
Calculi | Stone, blockage |
TURP | instrument is inserted into the urethra to remove a calculi |
BPH | Enlargement of the prostate |
Surgical separation of the vas deferens | Vasectomy |
Seminiferous Tubules | Produces sperm |
The Epididymis uncoiled may be: | as long as 6 meters |
Epididymis stores | Spermatozoa |
Tip of the penis | glans penis - made of corpus spongiosum |
Interstitial cells of the testes produce this male hormone | Testosterone |
Bulbourethral glands - Cowper's glands | Lubricate the urethrea and tip of the penis |
Parts of the pame reproductive system the contribute to semen are: | Prostate, vas defrons, seminal vesicles |
Seminol Velicles | Contributes most of the fluid to the semen |
Testosterone | initiates sperm production |
Gonads | Testes |