Human Reprodictive Systwm

Question 1

Ovaries

Answer 1

Store and release eggs.

Question 2

The fallopian tubes

Answer 2

Carry the egg to the uterus,fertilisation occurs here.

Question 3

The uterus

Answer 3

Is where the fertilised egg becomes implanted and finds nourishment.

Question 4

The cervix

Answer 4

Leads from the vagina to the iteris

Question 5

The vagina

Answer 5

Holds the male penis during sexual intercourse.

Question 6

Ovulation

Answer 6

An egg is released from the ovary an average of every 28 days. During the 28 menstrual cycle a girls body gets ready in case pregnancy occurs.
The egg is released on day13-15 of the menstrual cycle and it passes along the fallopian tube to the uterus.

Question 7

Menstruation/period

Answer 7

The lining and a small amount of blood pass out through the vagina (day 1-5)

Question 8

Fertile period

Answer 8

These are the days of the menstrual cycle when the woman is most likely to become pregnant. Intercourse 2 or 3 days before, during or after ovulation could lead to fertilisation because sperm cells can survive for this long.

Question 9

Menopause

Answer 9

Signals the end of a females ability to reproduce and also the end of her menstrual cycle. If happens at different ages for different people, typically in the late 40s to early 50s

Question 10

The testes

Answer 10

Produce sperm

Question 11

The scrotum

Answer 11

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

Question 12

The epididymus is a coiled tube on the outside of each testis that stores sperm and allows them to Mature fully.

Question 13

The vast deferens brings the sperm from the testis to the penis.

Question 14

The seminal vesicles, prostate gland and Cowpers gland.

Answer 14

Produce seminal fluid which mixes with sperm to form semen, it nourishes the sperm and allow them to swim,

Question 15

The penis

Answer 15

Enters the female and ejaculates semen

Question 16

Puberty

Answer 16

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

Question 17

Male puberty

Answer 17

In males, sex hormones 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.

Question 18

Female puberty

Answer 18

In females when the sex hormones 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.

Question 19

Fertilisation

Answer 19

During Inter course the man’s penis fills with blood and becomes hard enough to be placed inside the woman’s vagina.
A mixture of sperm cells and seminal fluid called semen is released into the vagina.
The sperm swim up the uterus and into the fallopian tubes.

Question 20

Fertilisation

Answer 20

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

Question 21

Stages of baby development

Answer 21

Zygote- Embryo- Foetus
Zygote- cell division occurs and growth. Egg and sperm fuse to form a single
Embryo, which attaches to the lining of the uterus grows more, and after 8 weeks looks like a human.
Foetus.

Question 22

Pregnancy

Answer 22

The average length of a human pregnancy is 40 weeks
As the embryo develops in the uterus ir is protected inside a fluid called amniotic fluid.
This fluid provides a cushion for the embryo.

Question 23

The placenta

Answer 23

Is rich in blood vessels.
It is here at the placenta that food and oxygen from the mothers blood pass into the baby’s blood.
Also wastes such as Carbon dioxide pass from the baby into the mother.

Question 24

Birth

Answer 24

The birth of a baby begins when the uterus muscles start to contract.
This is called labour.
The bag of amniotic fluid bursts “waters break” and further contractions push the baby out usually head first, through the vagina.
Umbilical cord is cut and the placenta (afterbirth) comes out after.

Question 25

Lactation

Answer 25

The mother may choose to breastfeed the infant.
The production of breast milk is called lactation.
The first three days of milk is called colostrum- very nutritious, and helps protect the baby from infection.