Male reproductive system

spermatozoon

male sex cell (sperm cell)

flagellum

tail that mobolizes

ejactulation

ejection of the sperm and fluid from the male urethra

how many sperms are release during single ejactulation

300 million

fraternal twins

fertilization from seperate sperm

which can have seperate placentas and can be the same or diff sex

fraternal twins

identical twins

results from fertilization of a single cell by a single sperm

which has one placenta and two amniotic sacs; always the same sex

identical twins

identical

monozygotic

fraternal

dizygotic

testosterone

a hormone responsible for the bodily characteristics of the male

testes

two egg shaped male reproductive organs in the scrotum

scrotum

sac enclosing the testes on the outside of the body

seminiferous tubules

contains cells that manufacture spermatozoa

vas deferns

the duct that conveys sperm from the testicle to the urethra

seminal vesticles

each pari of glands that open into the vas deferens and secrete components of semen

vasectomy

surgical procedure for male sterilization/ permaent contraception

semen

organic fluid that may contain spermatozoa

prostate gland

walnut sized gland located between the bladder and penis, protects the sperm

bulourethral gland

lies below the prostate gland, secretes fluid in urethra during ejaculation

penis

external male reproductive organ, also urinal duct

erectial dysfunction

inability for man to keep an erection firm enough for sec

term for fold of skin cover tip of penis

prepuce

most common type of cancer in testes

seminoma

teratoma

germ cell tumor containing one or more of the three layers of cells found in developing embryo

cryptorchidism

undescended testicles

hydrocele

fluid sac surrounding a testicle causing swelling in the scrotum

testicular torsion

twisting of the spermatic cord which compromises its blood supply

varicocele

enlarged, dialated veins near the testicle

benign prostatic hyperplasia (BPH)

benign enlargement of the prostate gland, elderly males

Transurethral resection of the prostate (TURP)

treament used to cure BPH

hypospadias

birth defect in which the opening of the urethra is on the under side of the penis

subcoronal

top

midshaft

middle shaft

penoscrotal

lower shaft

phimosis

condition which foreskin does not fully retract over the glans penis

chlamydial infections

bacterial infection, white/clear discharge from penis

gonorrhea

inflammation of the genital mucosa with gonococci, white/yellow/green discharge from penis

herpes genitalis

cause by herpes virus (HSV)

HSV1

oral herpes

HSV2

genital herpes

human papillomavirus (HPV)

carcinoma of the cervix

syphilis

bacterial infection causing chancres on the genitalia

syphilis primary stage

3-6 weeks heals regardless if treatment was receiveds

syphilis secondar stage

2-6 months after chancre disappears, rashes etc

teritary syphilis

3-15 years after initial infection, damages to brain, spinal cord, and heart

congenital syphylisis

transmitted during pregnancy or birth

PSA test

measures levels of prostate for specific antigen in blood

semen analysis

ejaculated fluid examined to perform sperm count and motility/ shape

castration

surgical excision of testicles or ovaries

circumcision

surgical procedure to remove the prepuce of the penis

digital rectal exam (DRE)

finger palpitation through the rectum to examine the prostate gland

photo selective vaporization of the prostate

removal of tissue to treat BPH using green light laser

transurethral resection of the prostate

excision of benign prostatic hyperplasia using a resectoscope through the urethra

vasectomy

bilateral surgical removal of a part of the vas deferens