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Maternal LEC > Lesson 6 > Flashcards

Lesson 6 Flashcards

1
Q

Ovulation to fertilization

A

Ovum

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2
Q

Fertilization to implantation

A

Zygote

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3
Q

From implantation to 5-8 weeks

A

Embryo

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4
Q

From 5-8 weeks to term

A

Fetus

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5
Q

The developing embryo and placental structure throughout the pregnancy

A

Conceptus

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6
Q

The earliest age at which fetuses survive

A

Age of viability

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7
Q

How many weeks is accepted for the age of viability

A

24 weeks

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8
Q

How many weight of the fetus is accepted for the age of viability

A

500-600g

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9
Q

Another name for fertilization

A

Conception or Impregnation

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10
Q

Union of ovum and spermatozoon

A

Fertilization

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11
Q

The fertilization occurs in the ??

A

Ampulla (fallopian tube)

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12
Q

Ovum is capable for fertilization for only about

A

24 hours (or 48 hours)

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13
Q

The functional life of spermatozoon is also about ??

A

48 hours (as long sa 72 hourd)

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14
Q

Critical time span for sexual intercourse

A

72 hours

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15
Q

Ring of mucopolysaccharide fluid

A

Zona pellucida

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16
Q

The circle of cells

A

Corona radiata

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17
Q

Ejaculation of 2.5 ml of semen contains

A

20-200 million sperms

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18
Q

The sperms reach the cervix within 80 seconds and the outer end of the fallopian tube within 5 minutes after deposition

A

Orgasm

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19
Q

The sperms reach the cervix within 80 seconds and the outer end of the fallopian tube within 5 minutes after deposition

A

Orgasm

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20
Q

How does the sperm move?

A

By its flagella

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21
Q

Changes in the plasma membrane of the sperm head

A

Capacitation

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22
Q

It is released by the sperm and dissolves the protective corona radiata

A

Hyaluronidase

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23
Q

Multiple sperm enter leading to abnormal growth

A

Hydatidiform mole

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24
Q

Multiple sperms enter leading to abnormal growth

A

Hydatidiform mole

25
Q

A chromosomal material fuse forming

A

Zygote

26
Q

XX

A

Female

27
Q

XY

A

Male

28
Q

It is the cleavage

A

Mitosis

29
Q

The first cleavage occurs at

A

48 hours

30
Q

A bumpy mulberry-like ball og 16-50 cells called

A

Morulla

31
Q

A morulla consists of how many cells

A

16-50

32
Q

A fluid space surrounding an inner cell mass which attaches to the endometrium

A

Blastocyst

33
Q

What are the parts of blastocyst

A

Trophoblast cells
Embryoblast cells
Blastocyst cavity

34
Q

Thin outer layer of cell in blastocyst

A

Trophoblast

35
Q

Inner layer of the cell in blastocyst

A

Embryoblast cells

36
Q

The fluid filled cavity that later form into amniotic cavity

A

Blastocyst cavity

37
Q

cells forming the outer layer of a blastocyst

A

Trophoblast

38
Q

cells forming the inner layer of a blastocys

A

Embryoblast

39
Q

Contact between the blastocyst and the endometrium

A

Implantation or nidation

40
Q

Another term for Implantation

A

Nidation

41
Q

Implantation occurs ???

A

8-10 days after fertilization

42
Q

3 Phases of Implantation

A

Apposition
Adhesion
Invasion

43
Q

Blastocyst brushes against the endometrium

A

Apposition

44
Q

Blastocyst attaches to the surface of endometrium

A

Adhesion

45
Q

Blastocyst settles down into the soft folds of endometrium

A

Invasion

46
Q

The proteolytic enzyme

A

Hyaluronidase

47
Q

What is the position of implantation

A

High in the uterus, posterior portion

48
Q

The vaginal spotting usually occurs in

A

Implantation

49
Q

Oncr implanted, zygote is an

A

Embryo

50
Q

Mucosal lining of the uterus that forms during pregnancy

A

Decidua

51
Q

After the attachment of zygote, the endometrium is known as _____

A

Decidua

52
Q

Promotes milk production

A

Prolactin

53
Q

Relaxes CT of symphysis pubis and pelvic ligaments, promotes cervical dilates

A

Relaxin

54
Q

Potent hormone like fatty acid

A

Prostaglandin

55
Q

Latin word for decidua

A

Falling off

56
Q

3 parts of decidua

A

Decidua Basalis
Decidua Capsularis
Decidua Vera

57
Q

Part of decidua that lies directly under the embryo

A

Decidua Basalis

58
Q

Portion of decidua that stretches or encapsulates the surface of the trophoblast

A

Decidua Capsularis

59
Q

Part of decidua that is “the remaining portion of the uterine lining”

A

Decidua basalis

Maternal LEC (33 decks)

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