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Biology Matric > Human Reproduction > Flashcards

Human Reproduction Flashcards

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1
Q

What is the function of the scrotum

A

Regulates temperature

Protection

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2
Q

What is the function of the testes

A

Lobules with seminiferous tubules

Produce sperm and testosterone

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3
Q

What is the function of the epididymis

A

Where immature sperm become mature and are stored

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4
Q

What is the function of the sperm duct

A

Pushes mature sperm forward

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5
Q

What is the function of the urethra

A

Transports urine and semen

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6
Q

What is the function of the prostate gland

A

Secretes fluid that aids transport of the sperm

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7
Q

What is the function of cowpeas gland

A

Secretes fluid that neutralises acidic urine and lubricated the urethra

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8
Q

semen contains what

A

Sperm from testes

Seminal fluid

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9
Q

What is the structures of the ovaries

A

Germinal epithelium layer

Tiny sac like structures (prim follicles)

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10
Q

Function of the ovaries

A

Forms and releases eggs and produces oestrogen and progesterone

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11
Q

What are the structures of the Fallopian tubes

A

Lined with cilia

Finger like outgrowths called fimbria

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12
Q

Functions of the Fallopian tubes

A

Site of fertilisation and first cell division

Enable egg and Zygote to move toward uterus

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13
Q

What is the function of the uterus

A

Organ where blastocyst implants and grows

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14
Q

How does puberty start

A

Hypothalamus in brain stimulates the pituitary gland to release gonadotropins

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15
Q

What are the gonadotropins released

A

Interstitial cell stimulating hormone

Follicle stim hormone

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16
Q

What is gametogenesis

A

The formation of mature gametes

17
Q

What is spermatogenesis

A

The production of mature sperm

18
Q

What are the steps of spermatogenesis

A

Form new spermatogonia
Primary spermatocytes
Two (n) secondary spermatocytes
Four haploid sperm cells

19
Q

What is oogenesis

A

The production of mature egg cells

20
Q

What are the stages of oogenesis

A

Primary follicles
Grow 2 Graafian follicles=2prim oocyte
Prim oocyte =egg

21
Q

What are the steps of gestation

A 
Fertilisation 
Divided into 2 cell then morula 
Blastocyst 
Embryo and amnion 
Trophoblast to foetal period
22
Q

What is the importance of oestrogen and progesterone

A

Oestrogen =production of prog and other preg hormones

Progesterone =formation and maintenance of placenta

23
Q

What is the difference between and embryo and a foetus

A

Embryo=cell diff still taking place

Foetus=organs have developed

24
Q

What is the function of the chorion and. The chorionic villi

A

Large surface area for attachment and diffusion and placenta production

25
Q

What are the functions of the placenta

A

O2 and food teansferred to foetus
Foetal waste to be excreted
Maternal antibodies passed on
Barrier and endocrine function(relaxin)

26
Q

What is the hormone that shows whether someone is pregnant or not

A

Human gonadotropin

27
Q

What is the amnion

A

Membrane that covers embryo

28
Q

What is the functions of the amniotic fluid

A

Medium for breathing and swallowing practice
Protection
Holds urine

29
Q

What does the umbilical chord consist of

A 
Umbilical artery (deoxy and waste out)
Umbilical vein (oxy and food in)
30
Q

What’s does the first trimester consist of

A

0-12weeks
Nausea
Vomiting
End of period

31
Q

What does the 2nd trimester consist of

A

12-28 weeks
Stronger
Movement
Not too heavy

32
Q

What does the 3rd trimester consist of

A 
28-40 weeks 
Final weight gain 
More movement 
Pre milk (colostrum)
Brixton hicks
33
Q

What does birth consist of

A

Labour dilation of cervix forces for us and amnion to cervix
Delivery
Release of afterbirth

34
Q

What is the production of milk from the mammary glands called

A

Lactation

35
Q

What causes lactation

A

Oes and prog stimulate growth of the mammary glands
Prolactin stimulates milk production
Oxytocin stimulates release of milk

Biology Matric (8 decks)

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