normal 1st trim. pt.1

Question 1

What day is ovulation in a 28 day cycle?

Answer 1

Day 14

Question 2

How long after ovulation does fertilization occur?

Answer 2

24 to 36 hours

Question 3

Where does ovulation most commonly occur?

Answer 3

Ampulla of the fallopian tube ( rapid cell division occurs here )

Question 4

How many chromosomes does each fertilized egg contain?

Answer 4

46 chromosomes (23 pairs)

Question 5

What is the male and female reproductive cell (the ovum and sperm) called?

Answer 5

Gamate

Question 6

The single cell fertilized egg prior to cell division

Answer 6

Zygote

Question 7

Dividing fertilized egg at 2 cell and 4 cell stages

Answer 7

blastomere

Question 8

Where is the blastomere located?

Answer 8

Within the ampulla of the fallopian tube

Question 9

The mass of dividing cells which resemble a Mulberry

Answer 9

Morula

Question 10

Where is the morula located?

Answer 10

in the isthmus of the tube and entering the uterus

Question 11

An organized collection of cells which implant into the endometrium about 7 days after fertilization.

Answer 11

blastocyst

Question 12

What produces the progesterone to keep the uterine lining stable?

Answer 12

Corpus luteum

Question 13

What produces beta human chorionic gonadotropin or BhCG which perpetuates the life of the corpus luteum?

Answer 13

trophoblast (found in the outer lining)

Question 14

What is the inner fluid filled cavity called that contains the intercell mass?

Answer 14

Blastocele

Question 15

**What will the inner cell mass inside the blastocyst become?***** KNOW THIS

Answer 15

Yolk sac and embryonic disk and amnion

Question 16

What is the glycoprotein called that is produced by the trophoblastic cells initially, and later by the placenta?

Answer 16

HCG human chorionic gonadotropin

Question 17

How is BhCG detected?

Answer 17

In maternal blood and urine

Question 18

What hormone turns a pregnancy test positive?

Answer 18

BhCG

Question 19

When is BhCG detectable in the bloodstream?

Answer 19

7-10 days after ovulation, 3 weeks after LMP

Question 20

What glycoprotein doubles every 2-3 days and plateaus at 8-9 weeks then declines?

Answer 20

HCG

Question 21

How can BhCG be measured? 2 ways

Answer 21

Qualitative and Quantitative
qualitative–positive or negative
quantitative–specific number

Question 22

What is the most common way the laboratory reports beta hCG levels?

Answer 22

with the 3rd international reference preparation

3rd IRP

Question 23

What is the formula for the 2nd IRP?

Answer 23

2nd IRP= IRP/2

Question 24

What is the formula for the 3rd IRP?

Answer 24

3rd IRP= 2 x SIS (second international standard)

Question 25

In the blastocyst cavity, the inner cell mass is differentiated from the bilaminar disc (2 layer) into what?

Answer 25

Trilaminar embryonic disk (3 layer)

Question 26

What are the 3 germ layers that comprise the embryonic disk by 5 weeks after LMP?

Answer 26

Endoderm, Mesoderm, Ectoderm

Question 27

The innercell layer (of embryonic disk)

Answer 27

Endoderm

Question 28

The middle layer ( of embryonic disk)

Answer 28

Mesoderm

Question 29

The outer layer (of embryonic disk)

Answer 29

Ectoderm

Question 30

What does the endoderm become?

Answer 30

GI and respiratory systems

Question 31

What does the mesoderm become?

Answer 31

Musculoskeletal and circulatory systems

Question 32

What does the ectoderm become?

Answer 32

brain and nervous system and skin

Question 33

When do all major internal and external structures begin to form?

Answer 33

6-10 weeks of fetal life

Question 34

When does the fetal heart begin to beat?

Answer 34

6 weeks

Question 35

What are we referring to when we say “week of fetal life”

Answer 35

1st day of last mestrual period

Question 36

What does the trophoblast of the blastocyst become???? **KNOW

Answer 36

Chorion