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HRS Flashcards

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1
Q

What hormones drive male and female changes

A

Testosterone; Oestrogen

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2
Q

Function of scrotum

A

Keep testis slightly below body temp

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3
Q

Function of testis

A

Produce sperms & testosterone

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4
Q

Function of sperm duct

A

Transport sperm from testis to urethra

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5
Q

Function of urethra

A

Provides common passage for discharge of semen and urine

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6
Q

Function of penis

A

Transfers semen to female for sexual intercourse

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7
Q

Function of seminal glands

A

Produce seminal fluid

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8
Q

Function of oviduct

A

Site of fertilisation

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9
Q

Function of ovary

A

Produces eggs and oestrogen and progesterone

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10
Q

Function of uterus

A

Site of implantation and fetus growth

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11
Q

Function of cervix

A

Entrance to uterus from vagina

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12
Q

Function of vagina

A

Holds the penis during sexual intercourse to receive sperm cells
Birth canal for fetus

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13
Q

Amount of cytoplasm in sperm vs egg

A

very little; abundant, contains stored nutrients

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14
Q

What happens during menstruation

A

Uterine lining breaks down
Uterine lining is shed out of the body together with blood

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15
Q

What happens on day 6 to 13 of menstrual cycle

A

Oestrogen stimulates repair and growth of uterine lining
Uterine lining is thick and spongy with blood vessels

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16
Q

What happens during ovulation

A

Release of mature ovum into oviduct

17
Q

What are the three days before and after ovulation known as

A

Fertile period

18
Q

What does the ovary secrete after ovulation

A

Progesterone

19
Q

What is the function of progesterone

A

Maintains and further thickens uterine lining

20
Q

What does the embryo get from the uterine lining when implanted

A

Nutrients and oxygen for growth

21
Q

What happens if fertilization does not take place

A

Ovaries stop producing progesterone
Uterine lining breaks down -> menstruation starts again

22
Q

What is the process of the male depositing semen into the vagina known as

A

Ejaculation

23
Q

When does fertilization occur

A

Nucleus of sperm fuses with nucleus of ovum to form a zygote. Fertilisation occurs in the oviduct

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