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REPRODUCTION AND GROWTH - Coggle Diagram
REPRODUCTION AND GROWTH
female parts of reproductive system
vagina
The vagina or birth canal is a muscular tube which joins
the cervix to the outside of the body The foetus exits the mother’s body through this canal. Semen is deposited here during sexual intercourse.
Urethra
A tube which leads to the outside of the body and
allows urine to be passed out
Uterus lining
The inner layer of the uterus The fertilised egg will develop further at this site
Urinary bladder
Contains urine before it is passed through the urethra
Uterus
The uterus is a pear-shaped organ with thick
muscular walls.
Ovary
Oestrogen and progesterone are produced here. Eggs are released from here when they are matured.
Cervix
The cervix consists of a ring of muscle at the lower end
of the uterus Becomes larger during birth so that the foetus can
be delivered
Oviduct
A muscular tube which connects the ovary to the uterus Its walls contract and push the egg towards the uterus The egg is fertilised here.
physical and emotional changes
male physical changes
the voice gets deeper height increases suddenly hair starts to grow under your arms,on legs,on the face,between your legs,on the skin may become oily pimple may develop on your face penis grows longer testicles become larger and produce sperm cells erection happens due to an increase in hormones the penis becomes stiff and hard
male/female emotional changes
many of us will be more conscious of our body we can become more sensitive will experience strong and Intense feelings our mood may also change abruptly
female physical changes
height increases suddenly hair starts to grow under your arms,on legs,on the face,between your legs,on the skin may become oily pimple may develop on your face waist becomes smaller hip becomes wider breast go bigger and fuller the reproductive organs will start to release egg cells discharge of blood from the vagina
diseases and how it effects our growth
turner syndrome
Stunted growth
Short (height)
The ovaries are not developed
properly
The heart is not developed
properly.
Down
syndrome
Affects brain development and
growth
The heart is not developed
properly
Hypothyroidism
Stunted growth
Delayed puberty
short limbs
The male parts of the reproduction system
Urinary bladder
Contains urine before it is released through the urethra
Prostate gland
release a fluid
rich in nutrients and enzymes to help sperm swim
towards the egg The mixture of sperm and this fluid is known as
semen During ejaculation the prostate gland closes off the opening between the bladder to prevent semen from entering
the bladder.
Urethra
A tube that leads to the outside of the penis and allows
urine to be passed out
During sexual intercourse, semen is released from
the urethra.
PENIS
A body part found outside the male’s body Becomes hard and stiff during erection Helps to deposit semen into a female reproductive organ during sexual intercourse
Testis
(singular) or Testes (plural
Produces sperm cells and testosterone
Scrotum
A loose pouch-like sac of skin that contains the testis It protects the testis and regulates the temperature of the testis
Sperm duct
A muscular tube that carries sperms from the testis to
the urethra
human reproductive system
sperm
The sperm cell is the smallest cell in the body the head of the sperms contains enzymes which help to break down the outer coating of the egg membrane so that the sperm can enter the egg cells. The sperm cell contains half of the genetic information needed to form an offspring. All of the genetic information of the sperm cell can be found in the nucleus, which means that information can be transferred efficiently from the sperm to the egg during fusion. A sperm’s tail helps it to swim fast towards an egg
egg
The egg cell is the largest cell in the human body. Egg cells also contain half the genetic information required to form an offspring. Like sperm cells all the genetic information in an eggcan be found in its nucleus
Fertilisation
Fertilisation takes place when the nucleus of the sperm combines with the nucleus of the egg. The genetic information from
both the sperm and the egg are combined to form a cell of
the new offspring. This is thefertilised egg cell.
SEXUAL INTERCOURSE
mating process needs to take place so that the
sperm cell and egg cell can meet. In humans, this mating process is known as sexual intercourse the male’s penis will erect. This allows the penis to enter the
female’s vagina and ejaculate semen Sperm cells in the semen will swim up the
oviduct or fallopian tube of the female. If sexual intercourse happens during the female’s ovulation period, the sperm and egg will meet at the oviduct
implantation
fertilised egg cell will start to divide and form a ball of cells known as the embryo
. The embryo will move through the uterus and attach itself to the uterus lining.