Biology Flashcards

1
Q

Ovaries

A

Store and release eggs

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2
Q

Fallopian Tubes

A

The Fallopian tubes carry the egg to the uterus, fertilisation occurs here

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3
Q

Uterus

A

The uterus (womb) is where the fertilised egg becomes implanted and finds nourishment

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4
Q

Cervix

A

The cervix leads the vagina to the uterus

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5
Q

Vagina

A

The vagina holds the male penis during sexual inter course

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6
Q

Ovulation

A

An egg is released from the ovary approximately every 28 days

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7
Q

Menstruation

A

The uterus becomes thicker and rich in blood vessels to be ready to receive the egg, if the egg is not fertilised by a sperm the thickened uterus lining is not needed and breaks away. The lining and a small amount of blood pass out through the vagina

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8
Q

The Fertile Period

A

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

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9
Q

Menopause

A

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

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10
Q

Testes

A

The testes produce sperm

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11
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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12
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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13
Q

Vas déférents

A

The vas déférées (sperm duct) brings the sperm from the testes to the penis

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14
Q

Seminal vesicles, prostate gland and Cowper’s gland

A

The seminal vesicles, prostate gland and Cowper’s gland produce seminal fluid which mixes with sperm to form semen, It nourishes the sperm and allow them to swim

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15
Q

Penis

A

The penis enters the female and ejaculates semen

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16
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

17
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

18
Q

Female puberty

A

In females when the sex hormones (oestrogen and progesterone) are released the breasts develop, hips widen, and hair begins to grow on the body

19
Q

Fertilisation

A

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

20
Q

Embryo

A

The fertilised egg then divides a number of times and the tiny group of cells moves down the Fallopian tubes to the uterus

21
Q

Zygote->Embryo->Foetus->

A

Egg and sperm fuse to form a single
->zygote
Cell division occurs and growth
->Embryo, which attachaches to the lining of

22
Q

Pregnancy

A

The average

23
Q

Umbilical cord

A

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

24
Q

Placenta

A

Where the food and oxygen from the mother joins the baby

25
Q

Birth and labour

A

The birth of a baby begins when the uterus muscles start to contract

26
Q

Waters break

A

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

27
Q

Afterbirth

A

The umbilical cord is cut and the placenta comes out after

28
Q

Lactation

A

This is the name given to the production of Brest milk

29
Q

Colostrum

A

A very nutritious, and healthy kind of milk that helps protect the baby from infection

30
Q

Family planning

A

To control the number of children you have you need to control the number of times fertilisation takes place

31
Q

Natural methods of contraception

A

Aim to detect the day ovulation takes place and avoid intercourse during the fertile period

32
Q

Artificial methods of contraception

A

Prevent the sperm and egg meeting

33
Q

Inherited characteristics

A

Many physical characteristics such as eye colour and shape of ears were inherited from your parents. The instructions for these inherited characteristics were carried in the two cells that made you the egg and sperm

34
Q

Chromosomes and genes

A

The nucleus of each sex cell (gamete) contains 23 thread like structures called

35
Q

Chromosomes

A

Chromosomes are made of protein + DNA

These chromosomes carry genes

36
Q

Genes

A

Genes are chemicals found on chromosomes that pass on information from parents to children

37
Q

DNA

A

Deoxyribonucleic acid