Human Reproductive System And Genetics Flashcards

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1
Q

Testes

A

The testes produce sperm

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2
Q

Scrotum

A

The scrotum is where the testes are , it is located outside the body to ensure the temperature is lower than body temperature for healthy sperm

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3
Q

Epididymis

A

The epididymis is a coiled tube on the outside of each testis that stores sperm and allows them to mature fully

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4
Q

Vas deferents

A

The vast majority of deferents ( sperm duct ) brings the sperm from the testes to the penis

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5
Q

Puberty

A

Puberty describes when the body starts
becoming sexually mature (reproductive
organs develop). It normally happens
between the ages of 10 and 16

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6
Q

Male puberty

A

Male puberty: In males, sex hormones
(testosterone) are released causing the
voice to deepen, hair grows around the
sex organs, face, chest and underarms,
the testes and penis grow bigger and start
to produce sperm

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7
Q

Female puberty

A

Female puberty: In females when the sex
hormones (oestrogen and progesterone)
are released the breasts develop, hips
widen, and hair begins to grow on the
body
• The first egg is released from the ovaries
which leads to the first period occurring
• An egg will be released every month until
the menopause

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8
Q

During intercourse the man’s

A

During intercourse the man’s penis fills
with blood and becomes hard enough to
be placed inside the woman’s vagina

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9
Q

Semen

A

A mixture of sperm cells and seminal fluid
called semen is released into the vagina

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10
Q

The sperm swim

A

The sperm swim up the uterus and into
the fallopian tubes

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11
Q

Fertilisation

A

Fertilisation: If an egg is present in the
fallopian tube, and a couple have sexual
intercourse, then one of the sperm cells
may fuse with it

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12
Q

Fertilised egg

A

The nuclei of the sperm and egg fuse
together to form a fertilised egg
• The woman is now pregnant

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13
Q

Zygote → Embryo → Foetus

A

• Egg and sperm fuse to form a single
• → Zygote
• Cell division occurs and growth
• → Embryo, which attaches to the lining of
the uterus (implantation) grows more, and
after 8 weeks looks like a human
• →Foetus

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14
Q

Amniotic fluid

A

As the embryo develops in the uterus it is
protected inside a bag of fluid called
amniotic fluid

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15
Q

Umbilical cord

A

• A tube called the umbilical cord joins the
embryo to the placenta

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16
Q

Labour

A

The birth of a baby begins when the uterus
muscles start to contract
• This is called labo

17
Q

Waters break

A

The bag of amniotic fluid bursts “waters
break” and further contractions push the
baby out usually head first, through the
vagi

18
Q

Afterbirth

A

The umbilical cord is cut and the placenta
(afterbirth) comes out aft

19
Q

46 chromosomes

A

When an egg and
sperm cell fuse (each has 23
chromosomes) they give the individual
they are creating 46 chromosomes
• One set comes from the mother the other
from the father

20
Q

Inheritable characteristics

A

Many
physical characteristics such as eye colour
and shape of ears were inherited from
your parents