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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
A chromosomal material fuse forming
Zygote
26
XX
Female
27
XY
Male
28
It is the cleavage
Mitosis
29
The first cleavage occurs at
48 hours
30
A bumpy mulberry-like ball og 16-50 cells called
Morulla
31
A morulla consists of how many cells
16-50
32
A fluid space surrounding an inner cell mass which attaches to the endometrium
Blastocyst
33
What are the parts of blastocyst
Trophoblast cells Embryoblast cells Blastocyst cavity
34
Thin outer layer of cell in blastocyst
Trophoblast
35
Inner layer of the cell in blastocyst
Embryoblast cells
36
The fluid filled cavity that later form into amniotic cavity
Blastocyst cavity
37
cells forming the outer layer of a blastocyst
Trophoblast
38
cells forming the inner layer of a blastocys
Embryoblast
39
Contact between the blastocyst and the endometrium
Implantation or nidation
40
Another term for Implantation
Nidation
41
Implantation occurs ???
8-10 days after fertilization
42
3 Phases of Implantation
Apposition Adhesion Invasion
43
Blastocyst brushes against the endometrium
Apposition
44
Blastocyst attaches to the surface of endometrium
Adhesion
45
Blastocyst settles down into the soft folds of endometrium
Invasion
46
The proteolytic enzyme
Hyaluronidase
47
What is the position of implantation
High in the uterus, posterior portion
48
The vaginal spotting usually occurs in
Implantation
49
Oncr implanted, zygote is an
Embryo
50
Mucosal lining of the uterus that forms during pregnancy
Decidua
51
After the attachment of zygote, the endometrium is known as _____
Decidua
52
Promotes milk production
Prolactin
53
Relaxes CT of symphysis pubis and pelvic ligaments, promotes cervical dilates
Relaxin
54
Potent hormone like fatty acid
Prostaglandin
55
Latin word for decidua
Falling off
56
3 parts of decidua
Decidua Basalis Decidua Capsularis Decidua Vera
57
Part of decidua that lies directly under the embryo
Decidua Basalis
58
Portion of decidua that stretches or encapsulates the surface of the trophoblast
Decidua Capsularis
59
Part of decidua that is "the remaining portion of the uterine lining"
Decidua basalis

Maternal LEC (33 decks)

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