Reproduction and Pregnancy Flashcards

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1
Q

What are the parts of the male reproductive system?

A
  • Tube from bladder
  • Glands / seminal vesticle
  • Sperm duct / vas deferens
  • Urethra
  • Erectile Tissue
  • Head of penis
  • Foreskin (may be removed)
  • Testis
  • Scrotal sac (scrotum)
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2
Q

What is sperm?

A

Sperm is the male sex cell, or gamete, made in the testes after puberty

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3
Q

What does sperm make with during sexual intercourse?

A

Sperm mix with a liquid to make semen, which is ejaculated from the penis during sexual intercourse

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4
Q

What are the parts of the female reproductive system?

A
  • Fallopian Tube (oviduct)
  • Cervix
  • Vagina
  • Womb (uterus)
  • Ovary
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5
Q

What is an egg/ovum?

A

An egg is the female sex cell, or gamete, made in the ovary and released every 28 days

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6
Q

What happens after the egg is released from the ovary?

A

It passes into the oviduct where it may meet sperm, which has entered the vagina during sexual intercourse (copulation).

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7
Q

What happens if the egg isn’t fertilised?

A

The egg will die after about a day and pass out of the vagina.

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8
Q

What are the two types of reproduction?

A

Asexual and sexual reproduction.

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9
Q

What is asexual reproduction?

A

Asexual reproduction involves only one parent. The offspring have identical genes to the parent - a clone.

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10
Q

What is sexual reproduction?

A

Sexual reproduction involves the fusion of male and female gametes. Because there are two parents, the offspring contains a mixture of their parents’ genes.

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11
Q

What is puberty?

A

Puberty is the process of a person as they approach sexual maturity and becomes capable of reproduction

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12
Q

What are some changes for women in puberty?

A
  • Extra hair on underarms and pubic area
  • Hips to widen
  • Development of breasts
  • Ovum (egg) release and start of periods
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13
Q

What are some changes for men in puberty?

A
  • Extra hair on face and body
  • Muscles to develop
  • Penis and testicles to enlarge
  • Sperm production
  • Deepening of voice
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14
Q

What is adolescence?

A

It is the phase of life between childhood and adulthood.

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15
Q

What are the stages of human development in order?

A

1) Fertilised egg
2) Embryo
3) Foetus
4) Newborn baby
5) Toddler
6) Child
7) Adolescent
8) Adult
9) Elderly
10) Death

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16
Q

What happens on the 1st day of the Menstrual Cycle?

A

Bleeding starts as the lining of the uterus (womb) breaks down and passes out of the vagina - this is “having a period”.

17
Q

What happens on the 4th day of the Menstrual Cycle?

A

The lining of the uterus starts to build up again. It thickens into a spongy layer full of blood vessels ready for implantation.

18
Q

What happens on the 14th day of the Menstrual Cycle?

A

An egg is released from the ovaries of the female, so this is the most likely time in which a female may become pregnant.

19
Q

What happens on the 28th day of the Menstrual Cycle?

A

The wall remains thick awaiting the arrival of a fertilised egg. If this doesn’t happen, this lining breaks down. Then the whole cycle repeats.

20
Q

What is the Menstrual Cycle?

A

From the age of puberty, females undergo a monthly sequence of events which is known as the Menstrual Cycle.

21
Q

What does the Menstrual Cycle involve?

A

This involves the body preparing for the uterus in case it receives a fertilised egg.

22
Q

What happens if the egg is not fertilised?

A

If this doesn’t happen, the egg and uterus lining break down and are lost from the body through the vagina over a period of three to four days, usually.

23
Q

What is ovulation?

A

An egg is released from an ovary, around 14.

24
Q

What is copulation?

A

Millions of sperm are released from the penis into the vagina during intercourse.

25
Q

What is fertilisation?

A

The egg is fertilised when the nuclei of the egg and sperm join; the fertilised egg is now called a zygote.

26
Q

What is cell division?

A

24 hours after fertilisation, the fertilised egg divides into two. After 4 days the egg has divided into 32 cells; it’s now called an embryo.

27
Q

What is implantation?

A

About a week after fertilisation, the embryo starts to embed itself into the wall of the uterus and the placenta begins to develop.

28
Q

What happens after 1 month during development?

A

The embryo is 6mm long and has a brain, heart, eyes, ears, and legs.

29
Q

What happens after 9 weeks during development?

A

The body is about 25mm long and is completely formed, now it’s called a foetus.

30
Q

What happens after 3 months during development?

A

The foetus is 54 mm long and looks much more like a baby.

31
Q

What happens after 5 months during development?

A

The foetus is around 160mm long. It kicks and its finger nails can be felt.

32
Q

What happens after 7 months during development?

A

The foetus is 370mm long and is ‘viable’, it would have a fair chance of surviving if it were born at this stage.

33
Q

What happens after 39 weeks during development?

A

The baby is about 520mm long; it’s fully developed and ready to be born.

34
Q

What does the placenta do?

A

The placenta lets the blood of the foetus and mother get very close to allow the exchange of food, oxygen, and wastes.

35
Q

What does the amniotic fluid do?

A

The amniotic fluid gives protection to the baby against knocks and bumps.

36
Q

What does the umbilical cord do?

A

The umbilical cord is a tube that connects you to your baby during pregnancy. It connects your baby to the placenta.