Salma Zamora Formation of Sperm Age These changes occur in boys between the ages of 12 and 16 with a wide variation Some boys may start even later or earlier Puberty It hits guys around 12 years old but Puberty is a process that goes on for several years its different to all ID: 563740
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Slide1
Process of Fertilization
Salma ZamoraSlide2
Formation of Sperm
Age
: These
changes occur in boys between the ages of 12 and 16, with a wide variation. Some boys may start even
later, or earlier.
Puberty: It hits guys around 12 years old but Puberty is a process that goes on for several years its different to all.
Process
: Spermatogenesis is
the
process by
which the male gametes, called sperm. Spermatogenesis takes place in the seminiferous tubules, which are an intricate system of tubules in the testes where spermatogenesis takes place.Slide3
Continuation…
Amount of sperm being formed:
how
much sperm can be formed: 1,500 sperms can be formed per second.
Formal name:Slide4
Formation of Ovum
Age: females start forming of the Ovum at sometimes 9 or 13
Puberty: Formation of the Ovum during puberty increases girls height, body formation, change of voice etc,,
Process: at borth human female body has two million primary oocyte in their ovaries. Primary follicle divides through meiosisI and stops at prophase I. When a female reaches puberty stage, only one primary follicle matures completely to form a secondary follicle. Then starts Meiosis II until Metaphase II develops to form a Graafian follicle. Then the ovarian wall ruptures releasing secondary Oocyte. If a sperm penetrates the secondary oocyte during fertilization meisosis II will be completer to from an ovum.Slide5
OvumSlide6
Process of sperm
travel
The epididymis is a tortuously coiled structure topping the testis, and it receives immature sperm from the testis and stores it several days. When ejaculation occurs, sperm is forcefully expelled from the tail of the epididymis into the deferent duct. Sperm then travels through the deferent duct through up the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder. Here, the vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate and empties into the urethra. When ejaculation occurs, rhythmic muscle movements propel the sperm forward.Slide7
the process of sperm travel, starting from testicles and ending in the female reproductive system
Sperm are produced in the testes, the pair of male reproductive glands located in the scrotum, a skin-covered sac that hangs from the groin. Within each testis are hollow tubules called seminiferous tubules where sperm cells are produced. The testes also secrete the male hormone testosterone, which stimulates development of the reproductive structures and secondary sexual characteristics (such as deepened voice)
at
puberty. After production, sperm cells move to a highly coiled tube called the epididymis, where they mature and are
stored
. sperm travel from the epididymis through a long tube called the vas deferens to the urethra. The urethra is a single tube that extends from the bladder to the tip of
the
penis. forming the seminal fluid, or semen. Ejaculated semen may contain as many as 400
million
sperm.The
penis is the male reproductive organ that delivers semen into the female
reproductive
tractSlide8
the process of the sperm fertilizing the egg
In humans fertilization occurs in the end of the fallopian tube away from the uterus (close to the ovary). The egg and the associated cumulus cells are ovulated (released) from an ovarian follicle and picked up by the fallopian tube.The tube pulls it inside where the sperm can find it.With in
vitro
fertilization.Slide9
how the egg develops into a zygote and eventually a baby.Slide10