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Title: The Human Reproductive System
Description: All About The Human Reproductive System And Both Male And Female Organs
Description: All About The Human Reproductive System And Both Male And Female Organs
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The human reproductive system usually involves
internal fertilization by sexual intercourse
...
A small portion of the sperm pass
through the cervix into the uterus, and then into
the fallopian tubes for fertilization of the ovum
...
Upon successful fertilization, the fertilized ovum, or
zygote, travels out of the fallopian tube and into
the uterus, where it implants in the uterine wall
...
When the fetus has
developed to a certain point, pregnancy is
concluded with childbirth or labor
...
Human infants are nearly
helpless and require high levels of parental care
...
Food may be provided by
breastfeeding or formula feeding
...
The
male reproductive system has one function, and it
is to produce and deposit sperm
...
In addition to
differences in nearly every reproductive organ,
numerous differences typically occur in secondary
sexual characteristics
...
The human
female reproductive system contains three main
parts: the vagina , which leads from the vulva, the
vaginal opening, to the uterus; the uterus, which
holds the developing fetus; and the ovaries , which
produce the female's ova
...
The vagina meets the outside at the vulva , which
also includes the labia, clitoris and urethra; during
intercourse this area is lubricated by mucus
secreted by the Bartholin's glands
...
Each ovary contains hundreds of egg cells or
ova (singular ovum )
...
One ovum is released and it
passes through the fallopian tube into the uterus
...
The lining of the uterus,
called the endometrium , and unfertilized ova are
shed each cycle through the process of
menstruation
...
Male
Main article: Human male reproductive system
The male reproductive system is a series of organs
located outside of the body and around the pelvis
region of a male that contribute towards the
reproduction process
...
The major reproductive organs of the male can be
grouped into three categories
...
Production takes
place in the testes which are housed in the
temperature regulating scrotum, immature sperm
then travel to the epididymis for development and
storage
...
The final
category are those used for copulation, and
deposition of the spermatozoa (sperm) within the
male, these include the penis , urethra , vas deferens,
and Cowper's gland
...
An important
sexual hormone of males is androgen , and
particularly testosterone
...
This hormone is also
responsible for the development of physical
characteristics in men such as facial hair and a
deep voice
...
Despite
the differences between the adult female and male
are derived from the intermediate mesoderm
...
Endocrine hormones are a well known
and critical controlling factor in the normal
differentiation of the reproductive system
...
For the Müllerian Duct this process is
reversed as it essentially disappears in the male
reproductive system and forms the fallopian tubes,
uterus, and vagina in the female system
...
There are a number of other
homologous structures shared between male and
female reproductive systems
...
special thanks to wikipedia
Title: The Human Reproductive System
Description: All About The Human Reproductive System And Both Male And Female Organs
Description: All About The Human Reproductive System And Both Male And Female Organs