Human reproduction

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21 Terms

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Sex gland

Produces semen that contains sperm cells

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Sperm duct

Sperm passes through

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Testes

Produce sperm and testosterone- contained in scrotum

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Penis

Passes urine and semen in and out of body

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Urethra

Tube that carries semen or semen- a ring of muscle stops the two mixing

<p>Tube that carries semen or semen- a ring of muscle stops the two mixing</p>
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5 male reproductive structures

Sex gland

Sperm duct

Testis

Penis

Urethra

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Ovary

Contains ova that develop when FSH is released

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Oviduct/fallopian tube

Contains ovary to uterus

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Uterus

Has thick lining so fertilised cells can be inplanted

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Cervix

Ring of muscle at lower end or uterus to ensure foetus remains in place during pregnancy

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Vagina

Muscular tube that leads into body

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<p>5 structures of female reproductive system</p>

5 structures of female reproductive system

Ovary

Fallopian tube

Uterus

Cervix

Vagina

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Menstrual cycle

Every 28 days lining of the uterus thickens and is prepared for pregnancy, if no fertilisation occurs lining is shed

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What is the day of ovulation

Day 14

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Oestrogen

Released by uterus

Causes thickening of uterus lining

Levels peak on day 10

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Progesterone

Maintains uterus lining

Inhibits the release of LH and FSH

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FSH & LH

FSA released by pituitary gland causes maturation of egg in ovary

LH stimulated the release of the mature egg

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Decrease in oestrogen…

LH & FSH start increasing

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Describe levels of hormones throughout menstrual cycle

knowt flashcard image
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Placenta

Allows glucose, oxygen and amino acids from mother’s blood to diffuse into developing foetus

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Amniotic fluid

Liquid contained in a bag in the uterus that surrounds foetus and protects it