Reproduction
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Reproduction is …
the process by which animals produce offspring for the purpose of continuing the species
The process of reproduction begins with …
copulation which is the mating of a male and a female of the species
Reproduction’s second step is …
sperm cells from the male are deposited in the female reproductive tract and try to untie with egg
Reproduction’s third step is …
when fertilization (a sperm cell and egg cell unite) occurs and an embryo begins to develop
Reproduction’s fourth step is …
The embryo attaches to the wall of the uterus where it is protected, receives nourishment and develops
Reproduction’s fifth step is …
When the new offspring reaches the end of the gestation period, it is delivered from the female reproductive tract in a process called parturition
The male reproductive anatomy consists of …
• Gametes • Scrotum • Testes • Epididymus • Vas Deferens • Accessory Glands • Penis • Sigmoid Flexure • Retractor Penis Muscle
What is a Gamete?
it is a sperm cell
Gametes are responsible for …
• Production • Storage • Deposition • Produces the male sex hormone • is a passageway for expelling urine
What is the function of the Scrotum?
it is to protect and support the testes
The scrotum responsible for …
• Protecting the sperm cells - Regulating temperature
What muscles are responsible for raising or lowering the testes?
• Cremaster muscle • Spermatic cord • Tunica dartos muscle
What temperature should the scrotum be in order for normal sperm development?
4 to 6 degrees below body temperature
What is the function of the testes?
• Produce sperm - Produce testosterone
The seminiferous tubes are located where?
In the testes
The seminiferous tubes are the site for what?
Sperm production and maturation
The interstitial cells (Leydig) produce what?
Testosterone
What structure in the male is responsible for further maturation, storage and transportation of sperm cell?
Epididymis
True or False: Because location of the testes varies on livestock animals, the location of the epididymis varies as well.
True
What is another name for the Vas Deferens?
Ductus Deferens
The function of the Vas Deferens is to …
• Transports sperm from the epididymis to the urethra • Carries urine from the bladder • Carries sperm and fluid from accessory sex organs
The accessory glands include …
• Seminal vesicles (vesicular glands) • Prostate glands • Bulbourethral glands (cowper’s glands)
The job of the Seminal vesicles (vesicular glands) is …
Secrete fluids providing energy and buffers to sperm
The job of the Prostate glands is …
Secrete a thick, milky fluid high in organic ions