Reproductive System Flashcards
Puberty starts at what age?
10-14
Reproductive organs are known as?
Genitals
Reproductive cells are know as?
Gametes
Glands that produce gametes?
Gonads
Two types of gonads?
- Testes
* Ovaries
Male gamete?
Sperm
Female gamete?
egg cell
Alternative name for egg cell?
- Ovum
* Oocyte
A fertilized ovum?
Zygote
Process which organisms produce offspring?
Sexual reproduction.
Union of female ovum and male spermatozoon, the beginning of an embryo.
Fertilization
Ability to produce offspring by a sperm uniting with an ovum?
Fertility
Medical term for sexual intercourse?
Coitus.
Primary sex organ for males?
Testes
Ducts of the male reproductive system?
- Epididymis
- Vas Deferens
- Urethra
Accessory glands of the male reproductive system?
- Seminal Vesicle
- Prostate Gland
- Bulbourethral Gland
Supporting structures of the male reproductive system?
- Penis
* Scrotum
Other terms for testis?
- Testicles
* Orchis
Dimensions of testis?
- 4cm long
* 2.5cm wide
Surrounds each testis and divides into 250 lobules?
Tunica Albuginea
Where spermatogenesis occurs
Seminiferous Tubules
Two cells which exist within seminiferous tubules?
- Spermatogenic Cells
* Interstitial Cells
Alternative name for Interstitial cells of the seminiferous tubules?
Leydig Cells
Cells which give rise to sperm cells?
spermatogenic cells
Cells which produce and secrete male sex hormones?
Interstitial Cells
Tiny tadpole shaped cells?
Sperm Cells
Length of sperm cell?
0.06mm Long
Parts of sperm cell?
- Head
- Midpiece
- Tail
Found in the head of sperm cells?
Acrosome
Contains enzymes that are released during fertilization, it aids in sperm penetration of egg cell.
Acrosome.
Part of sperm which contains mitochondria
Midpiece
Alternative name for tail of sperm?
Flagellum
Formation of sperm?
Spermatogenesis.
Process of spermatogenesis?
- Spermatogonia
- Primary Spermatocytes
- Secondary Spermatocytes
- Spermatid
- Sperm Cells
Comma shaped structure on the posterior side of the testis?
Epididymis
Length of epididymis?
20 Ft
Union of several ducts which originate from the seminiferous tubules?
Epididymis.
Site for temporary storage and maturation of immature sperm cells?
Epididymis.
Maturation time frame of sperm cells in epididymis?
20 Days.
Alternative name for Vas Deferens?
- Ductus Deferens
* Wolffian Duct
Contains the vas deferens, testicular arteries and veins and the lymphatics and nerves for the testis?
Spermatic Cord
Formed by the union of the duct of the seminal vesicle and the vas deferens?
Ejaculatory Duct
Conveys the spermatozoa and the secretions of the seminal vesicle to the prostatic urethra?
Ejaculatory Duct
Shared terminal duct of the reproductive and urinary system?
Urethra.
Passageway for both semen and urine?
Urethra
3 Regions of the urethra?
Prostatic Urethra
Membranous Urethra
Spongy Urethra
Alternative name for spongy urethra?
Penile Urethra
Urethra which passes through prostate?
Prostatic Urethra
Urethra which passes through floor of pelvis?
Membranous Urethra
Urethra which extends the length of the penis?
Spongy Uretha
Located at the base of the bladder and produces 60% of semen volume?
Seminal Vesicle
How much semen volume does the seminal vesicle produce?
60%
Contents of seminal vesicle secretion?
Thick yellowish fluid which contains Fructose and Vitamin C
Gland that is the size and shape of a chestnut?
Prostate
Secretes a milky fluid which activates the sperm?
Prostate gland
Alternative name for bulbourethral gland?
Cowper’s Gland
Tiny glands inferior to prostate?
Bulbourethral glands
Produce a thick clear mucus that drains into the penile urethra?
Bulbourethral glands.
Produces fluid which clenses the urethra and acts as a lubricant during sexual intercourse for men?
Bulbourethral glands.
A milky white substance which is a mixture of sperm and gland secretions?
Semen
Secretion percent make up of semen?
60% seminal vesicle
30% Prostate Glands
5% Bulbourethral glands
5% testes contribution
Optimum pH for sperm?
6.0-6.5
pH of vagina?
3.5 - 4.0
Normal volume of sperm?
2-5mL
Normal amount of sperm per mL?
100 million
Pathway of sperm?
- Sperm develop (seminiferous Tubules)
- Mature in Epididymis
- Ductus Deferens
- Secretions from Seminal vesicles, prostate glands and bulbourethral glands
- Exit through urethra.