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Meiosis To Man > Felitization > Flashcards

Felitization Flashcards

1
Q

Wha is fertilization

A

Process by which male and female gametes unite to give rise to a zygote.

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2
Q

Where does fetilzation occur

A

Ampulla of the Fallopian tube

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3
Q

What aids in fertilization

A

Carbohydrates binding molecules and gametes specific protein in sperm egg recognitions.

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4
Q

What are the prerequisites for fertilization?

A 
Mature oocyte
Mature speematozoan
Capacitation of the spermatozoa
Quality and quantity
Fusion of sperm and ovum , with 12 hrs
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5
Q

How long does the mature spermatozoan still in the ductus

A

2-3 weeks

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6
Q

When does sperm become motile?

A

Vagina

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7
Q

What is the acrosome made up of?

A

Golgi apparatus

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8
Q

When capitation occurs?

A

In the female

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9
Q

Oligasperm

A

Less than 20million of sperm per liter , less than 30% abnormal sperms or less than 70% inmotile. Are less than 1-5 ml of sperm per ejaculate.

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10
Q

What cause ogliosperm phase?

A

Drinking, stressful jobs, smoking

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11
Q

1 st phrase of fertilization. Passage of sperm through corona radiation

A

II

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12
Q

Zona reaction

A

What isn’t

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13
Q

What is triplioded?

A

Why

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14
Q

What is an Otis

A

Ddd

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15
Q

Once a zygote is formed what type of

A

Mitotic

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16
Q

Results of fertilization

A

Innitiation, restoration , determination of chromosomal sex of embryo

17
Q

What is cleavage?

A

Repeated mitotic divisions of the zygote resulting in rapid increase increase in the number of cells.

18
Q

What is a morula?

A

Occurs after 72 hours, its a 12-16 cell stage

19
Q

Is the zona of pellucida attached in the morula stage?

A

Yes

20
Q

What is a cyst?

A

Fdd

21
Q

A blastocele is formed to a

A

Blastocyst,

22
Q

What is the inner cell mass?

A

Kk

23
Q

When does the zona pucudia disappears?

A

Cleavage

24
Q

What is the polar trophoblast.

A

Kk

25
Q

What is the function of trophoblast

A

Enzyme cells that eat away whatever it comes in contact with

26
Q

What is implantation?

A

Mm

27
Q

Where does implantation take places?

A

Polar trophoblast

28
Q

When does implantation occurs?

A

6th day

29
Q

What is implantation bleeding?

A

Spotting, occurs on the 6th day of fertilization

30
Q

What is invitofertilization?

A

Zz

31
Q

What is capitation ?

A

the process by which the glycoprotein coat and the seminal proteins are removed from the surface of the sperm’s acrosome by substances secreted by the uterus or fallopian tubes of the female genital tract, thereby permitting the acrosome reaction to occur.

32
Q

Does motility make a spermatozoa mature

.

A

No, motility of spermatozoa only take place when the spermatozoa enter the Fallopian tube

33
Q

Can freshly evacuated sperm fertilize can oocyte?

A

No, sperm must undergo capacitation

Meiosis To Man (11 decks)

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