Chapter 11 Human Bio- Reproductive system

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32 Terms

1
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What is the function of the uterus?

Contains embryo/foetus during pregnancy

Site of implantation

2
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What is the function of the Fallopian (uterine) tube?

Carries eggs to uterus

Site of fertilisation

3
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What is the function of the Urethra?

Carries urine out of the body

4
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What is the function of the Fimbriae?

Directs eggs (ovum) into fallopian tubes

5
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What is the function of the Clitoris?

Contains erectile tissue, blood vessels and nerves

Helps with sexual arousal

6
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What is the function of the Ovary (2)

Produces eggs/ovum and sex hormones

7
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What is the function of the Labia minora?

Surrounds the space into which the urethra and vagina opens to protect

8
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What is the function of the Labia Majora?

Contains large number of glands that produce oily secretion

9
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What is the function of the Cervix of the uterus?

Entrance int the urethra

Where sperm is deposited

Dilates ti 10cm for childbirth

10
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What is the function of the Vagina?

Receives the penis of the male during intercours

Enlargers to form the birth cabal during childbirth

11
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What is the function of the Penis?

Organ for passing urine and transferring sperm from the male to the female

12
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What is the function of the Vas deferens (2) ?

Carries sperm to the urethra, away from testis

13
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What is the function of the Seminal Vesicles (2) ?

Secretes fluid that is rich in sugars and is the main component of semen

14
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What is the function of the Prostate gland?

Secretes an alkaline fluid that helps activate sperm.

Neutralises the acidity of the vagina

15
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What is the function of the Bulbo-urethral gland ?

Secretes clear mucus that acts as a lubricant of which much proceeds the emission of the seminal fluid, with only a small amount included in the semen

16
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What is the function of the Epididymis (2) ?

Stores sperm while they finish maturing

17
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What is the function of the Scrotum (2) ?

Holds the testes outdid the body to keep the testes 2 degrees lower than normal body temp.

18
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What is the function of the Testis

Produces male sperm and male hormones

19
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What is the function of the Foreskin?

Covers the head or end of the penis, may b removed by circumcision.

20
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What is the function of the Urethra?

Carries semen sand urine out of the body

21
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What is the function of the Erectile tissue?

In the penis, is in the 3 cylinders.

Fills with blood during sexual arousal, causes the penis to enlargen, stiffen sand be erected so it can enter the vagina

22
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What is gameogenesis?

Gamete development from meiosis to mature gametes

Spermatogenesis = formation of spermatozoa in the testis

Oogenesis = formation of ova in the ovary

23
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Where does spermatogenesis occur and does it split evenly?

In semiferous tubules

They divide evenly as it creates 4 identical sperms

24
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Where does oogenesis occur and does it split evenly?

Ovaries

Does not split evently, one oocyte has more cytoplasm than the other

25
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What is the structure of the sperm?

Head

→ acrosome

→ Nucleus

→ Centrioles

Middle piece

→ mitochondria (needs lots of energy to move)

Tail

→ flagellum

26
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What is the structure of the ovum?

Primary follicle

Oocyte

Follicular cell

27
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What is some general information about the sperm?

Number produced in spermatogenesis is 4

Is around ~0.06mm long

Is very mobile

28
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What is some general information of the ovum?

Produced 1 ovum in oogenesis

Is 1 large follicles and up to 3 polar bodies

Has low to no mobility

29
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What is the timing of spermatogenesis?

It is uninterrupted

Begins during puberty

Gametes are released during ejaculation

Process never stops, only slows down

30
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What is the timing of oogenesis?

It is interrupted, starts before birth and then starts again at puberty

Beings before birth and at puberty

Gametes are released during ovulation

Process stops during menopause

31
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What are the stages of Spermatogenesis?

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32
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What are the stage of oogenesis?

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