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Natural Science gr9 > Human reproduction > Flashcards

Human reproduction Flashcards

1
Q

what changes take place girls bodies during puberty

A

breasts, pubic hair, menstruation, body shape, body odour and acne

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2
Q

what changes take place in boys bodies during puberty

A

testicle and penis size increases, hair in pubic areas, limbs, chest, face, voice becomes deeper, body shape, body odour and acne

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3
Q

how does reproduction occur

A

pituitary gland controls body’s hormones and hormonal activities

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4
Q

what to men produce when puberty occurs

A

produce sperm and ensure to come in contact with a female egg cell

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5
Q

what do women produce during puberty

A

produce and store egg cells that can be fertilized by a male sperm cell

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6
Q

what are the sex cells called that enable the body to produce sex cells

A

gametes

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7
Q

how does puberty start

A

when pituitary gland releases hormones into the bloodstream

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8
Q

what is the hormone in girls called

A

oestrogen

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9
Q

what is the hormone in males called

A

testosterone

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10
Q

what is the testes and scrotum

A

two testes are contained in scrotum, scrotum keeps them at 35 degrees

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11
Q

what is the sperm duct

A

carries sperm from testes to urethra in the penis

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12
Q

what is the penis

A

external sex organ, needs to erect to deliver sperm into the vagina

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13
Q

what is the urethra

A

urine and semen moves through urethra during ejaculation

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14
Q

what is the vagina

A

tube that connects uterus to outside of body, acts as canal for penis during intercourse

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15
Q

what is the uterus

A

hollow with strong muscular walls to carry and protect the baby

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16
Q

what are ovaries

A

two on either side of uterus, produce oestrogen and contain the ova

17
Q

what are oviducts(tubes)

A

mature ovum travels though these tubes into uterus, fertilization occurs

18
Q

what happens after the cycle of puberty has ended

A

menopause

19
Q

what is menstruation

A

no fertilized egg cell called zygote to implant in uterus and layer of blood and tissue no longer needed

20
Q

how often does menstrual cycle happen

A

every 28-30 days

21
Q

name 6 types of contraceptives

A

condom, diaphragm, tubal ligation in women, oral contraceptive pill, female i tea-uterine device(IUD), vasectomy

Natural Science gr9 (4 decks)

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