LESSON 1 (REPRODUCTIVE SYSTEM) Flashcards
processes by traveling through the bloodstream to target cells or organs, influencing their function and maintaining overall body balance.
HORMONES
Why do we need to reproduce?
We need to reproduce to keep our species alive and ensure that life continues by creating new generations. It keeps populations stable and prevents the extinction of species.
a collection of organs and tissues in the body responsible for the production of gametes (sperm in males, eggs in females) and facilitating fertilization, gestation, and childbirth.
REPRODUCTIVE SYSTEM
It is during the 7th week of development that male embryos begin to exhibit distinct features. This change is due to the production of testosterone in its glands.
REPRODUCTIVE ORGAN DEVELOPMENT
the period of rapid physical changes in adolescents as their bodies reach sexual maturity.
PUBERTY
are physical traits that develop during puberty and differentiate between males and females, but are not directly involved in reproduction.
SECONDARY SEX CHARACTERISTICS
serves as a protective sac outside the body that houses the testes, maintaining a temperature slightly lower than body temperature to support optimal sperm production.
SCROTUM
produce sperm cells and secrete testosterone, regulating male reproductive functions and secondary sexual characteristics.
TESTIS/TESTES
a coiled tube located on the surface of each testis where sperm cells mature and are stored before ejaculation.
EPIDIDYMIS
a duct that carries sperm from the epididymis to the urethra during ejaculation
VAS DEFERENS
glands that produce seminal fluid, a component of semen. This fluid nourishes and transports sperm, enhancing their motility and viability.
SEMINAL VESICLE
a short tube formed by the union of the vas deferens and the duct of the seminal vesicle, responsible for transporting sperm and seminal fluid into the urethra during ejaculation.
EJACULATORY DUCT
a walnut-sized gland located below the bladder in males, surrounding the urethra. Its primary function is to produce prostatic fluid, a component of semen that helps nourish and protect sperm and aids in their motility.
PROSTATE GLAND
a tube that carries urine from the bladder to the outside of the body during urination and serves as a passageway for semen during ejaculation in males.
URETHRA
the male reproductive organ responsible for delivering sperm into the female reproductive tract during sexual intercourse. It also serves as the conduit for urine to exit the body through the urethra.
PENIS
are the primary female reproductive organs responsible for producing eggs (ova) and secreting hormones such as estrogen and progesterone, which regulate the menstrual cycle, pregnancy, and secondary sexual characteristics
OVARIES
are ducts that transport eggs from the ovaries to the uterus and provide the site for fertilization to occur.
FALLOPIAN TUBE
also known as the womb, is the organ where a fertilized egg implants and develops into a fetus during pregnancy. It also plays a role in menstruation by shedding its lining when pregnancy does not occur.
UTERUS
the inner lining of the uterus that undergoes cyclic changes in response to hormonal fluctuations during the menstrual cycle. It thickens each month in preparation for possible pregnancy and sheds during menstruation if fertilization does not occur.
ENDOMETRIUM
the lower portion of the uterus that connects to the vagina. It acts as a barrier between the uterus and the outside environment and dilates during childbirth to allow the passage of the baby from the uterus into the vagina.
CERVIX
a muscular tube that connects the uterus to the outside of the body. It serves as the passageway for menstrual fluid to leave the body and for sperm to enter during sexual intercourse.
VAGINA
