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Grade 9 NS > Reproductive system > Flashcards

Reproductive system Flashcards

1
Q

What is the purpose of reproduction?

A

To produce sex cells to ensure the continuation of the species.

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2
Q

What are the female reproductive organs?

A

Uterus and ovary.

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3
Q

What is the male reproductive organ?

A

Testis

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4
Q

Where are the ovaries located and what’s their function?

A

Inside the females body in the lower abdomen and produce mature egg cells (ova).

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5
Q

Where is the uterus located and what is it’s function?

A

In females. Has a thick lining and muscular wall. This is where a fertilised egg will implant and develop during pregnancy.

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6
Q

Where are the testes located and what is their function?

A

I’m men, located in the scrotum, a pouch of skin that hangs between the legs. Testes produce sperm cells.

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7
Q

Name 3 health issues involving the reproductive system.

A

Infertility, Foetal Alcohol Syndrome, Sexually Transmitted Diseases (STDs).

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8
Q

What is puberty?

A

The time when a child’s body develops and changes. The sexual organs mature to enable the body to produce sex cells.

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9
Q

What is an important gland that controls most of the body’s hormones and hormonal activities?

A

Pituitary gland

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10
Q

Where is the pituitary gland located?

A

At the base of the brain.

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11
Q

When is puberty Brough on?

A

When the pituitary gland releases specific hormones into the bloodstream. These hormones then travel to the immature sec organs and signal the hormones in these to be released.

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12
Q

What hormone are the ovaries stimulated to release in girls?

A

Oestrogen

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13
Q

What hormone are the testes stimulated to release in boys?

A

Testosterone

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14
Q

What are the other changes that happen when the hormones are released besides the sexual organs maturing called?

A

Secondary sexual characteristics.

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15
Q

What secondary changes occur in females?

A 
Breasts develops.
Pubic hair grows.
Menstruation occurs.
Body shape changes. 
Body odour and acne develop.
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16
Q

What secondary changes occur in males?

A 
Testicle and penis size increases.
Hair starts to grow on public areas, limbs, chest and face.
Voice becomes deeper.
Body shape changes.
Body odour and acne develop.
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17
Q

Name all the male reproductive organs.

A 
Vas deferens
Penis
Urethra
Testis
Scrotum
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18
Q

What is the scrotum?

A

A pouch of skin the two testes are contained in.

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19
Q

What does the scrotum ensure?

A

It ensures that the testes are kept at a constant temperature of 35 degrees celsius, which is the temperature at which spent is produced.

20
Q

What’s another name for the Vas Deferens?

A

Sperm duct

21
Q

What is the function of the vas deferens/spark duct?

A

Different tubes carry the semen from the testes to the penis. The sperm duct Carrie’s the sperm from the tests to the urethra in the penis.

22
Q

What is the penis?

A

The external sex organ.

23
Q

What needs happen for the penis to be able to go into the vagina?

A

The penis needs to erect (stiff and hard).

24
Q

What does the penis do?

A

Goes into the vagina to deliver the sperm to the cervix during ejaculation.

25
Q

Where does the semen move during ejaculation?

A

Through the urethra.

26
Q

What’s happens during urination?

A

Urine passes through the urethra.

27
Q

What can’t move through the urethra at the same time?

A

Semen and urine.

28
Q

Name the female reproductive organs.

A 
Oviduct 
Uterus
Ovary 
Cervix 
Vagina
29
Q

What is the vagina?

A

A tube that connects the uterus with the outside of the body.

30
Q

What happens in the vagina? (3)

A

It acts as a canal for the penis to fit into to deliver sperm during intercourse.
During menstruation, the menstrual blood leaves the body through the vagina.
It’s the birth canal during childbirth.

31
Q

Describe the uterus. (3)

A

Hollow, with extremely strong muscular walls that can carry and protect a baby.
Two Fallopian tubes at the top of the uterus connect it to the ovaries.
The bottom neck of the uterus is called the cervix which is tightly closed to protect the inside of the uterus.

32
Q

How many ovaries are there?

A

2 ovaries on either side of the uterus.

33
Q

What is the function of the ovaries?

A

They produce oestrogen and contain the ova.

34
Q

What is ovulation?

A

Each month the ovaries take turns to produce a mature ovum.

35
Q

What connects the uterus and ovaries?

A

Oviducts/Fallopian tubes.

36
Q

What’s occurs in the oviduct?

A

Fertilisation.

37
Q

What are the stages of reproduction?

A

Ovulation, menstruation, fertilisation.

38
Q

What is menopause?

A

When the reproductive cycle comes to an end.

39
Q

What is it called when the erect male penis enters the female vagina?

A

Copulation.

40
Q

What is it called when the penis deposits sperm into the vagina?

A

Ejaculation.

41
Q

What is the gestation period?

A

The 9 months of pregnancy.

42
Q

Name the 4 contraceptives.

A

Barrier
Hormonal
Intra-uterine devices
Sterilisation

43
Q

What do barrier contraceptives do?

A

Physically prevent sperm from reaching the uterus.

44
Q

What do hormonal contraceptives do?

A

Prevent ovulation and fertilisation in the female using hormones.

45
Q

What do intra-uterine devices do?

A

Prevent the embryo implanting.

46
Q

What does sterilisation do?

A

By surgery in men and women which is permanent and not reversible.

Grade 9 NS (13 decks)

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