4th Grading | Science Flashcards
This system ensures the continuation of the species
Reproductive System
also known as sex glands
two testes or testicles
it is responsible for making sperms and secreting testosterone which is the primary sex hormones
Testes
inside the testes are several coiled tubes known as?
Seminiferous tubules
6 m coiled tube found on the backside of each testis
Epididymis
it is a long, muscular tube that extends from the epididymis upward to the scrotum. It is located just behind the urinary bladder
Vas Deferens
It transports the mature sperm to the uretha through peristalsis
Vas deferens
it is formed by the merger of the vas deferens and the seminal vesicle
Ejaculatory Duct
it is a thin-walled tube that extends from the urinary bladder to the end of the penis
Urethra
It has two functions- to carry urine from the bladder and carry semen that has sperms during ejaculation
Urethra
these glands produce secretions involved in the reproductive process
Accessory Gland
are sac-like pouches that attach to the vas deferens
Seminal Vesicles
It secretes an alkaline fluid that helps regulate the pH of the semen. It also contains fructose as an energy source of the sperms
Seminal Vesticle
is a doughnut shape gland that is located below the urinary bladder in front of the rectum
Prostate gland
It also activates the swimming movements of the sperm
Prostate Gland
are two spherical glands that are located below the prostate gland
Bulbourethral Gland
they are also known as Cowper’s gland
Bulbourethral Gland
What are the external parts of the male reproductive System
Scrotum and Penis
It is the external sac of the skin that contain the testes.
Scrotum
what is the degree of the body that the scrotum also have to regualte
37 degree celcius
it is the external part of the male reproductive organ that leads the fluid and sperm outside the body
Penis
this is a surgical removal of prepuce, a loose sheath of skin found in the penis
Circumcision
the testis has special cells that produce
sperm
3 part of the sperm
- head
2.midpiece
3.tail
what do the 3 parts of the sperm contain?
head - nucleus
midpiece - mitochondria and flagellum
tail - tail sheath
The accessory glands will provide a fluid that neutralizes the acidity of the urethra and will provide nourishment for he sperm. This fluid is known as?
Seminal fluid or semen
what are the 4 cause why some male experience infertility
- hormonal imbalance
- low sperm count
- duct blockage
- low fructose content of semen
it is regulated by the autonomous nervous system so it is not voluntary
Ejaculation
the sperm is ejected through the penis by the contraction of smooth muscles lined in the reproductive tract
Ejaculation
these are the primary sex organs of a female
Ovaries
they have the same size and shape oof almonds
Ovaries
what ae the two female sex hormoes
Progesterone and estrogen
fallopian tubes are also known as
uterine tubes or oviducts
Each funnel like structure is divided jnto fingerlike structures called
Fimbriae
is a hollow organ with thick muscular walls
Uterus
it is the lower part of the uterus and is inserted into the upper end of the vagina
Cervix
it is the upper portion that joins the fallopian tubes
Body
