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Male Reproductive

Male Reproductive A&P/Med Surg

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
Created by: LPN-Study