Chapter 3

Question 1

Meiosis

Answer 1

Cell division where chromosomes intertwine

Question 2

Umbilical vein

Answer 2

Carries oxygenated blood

Question 3

Progesterone

Answer 3

Prepares uterus for fertilized ovum

Question 4

Teratogen

Answer 4

Substance that adversely alters fetal development

Question 5

Quickening

Answer 5

Fetal movement

Question 6

Gynecoid

Answer 6

Most common female pelvis type

Question 7

Wharton’s jelly

Answer 7

Protects umbilical cord from compression

Question 8

Chorionic villi

Answer 8

Projections from fetal portion of placenta into maternal blood

Question 9

Endometrium

Answer 9

Lining of the uterus

Question 10

Embryo

Answer 10

Day 15 to end of 8th week

Question 11

Estrogens

Answer 11

Female hormones

Question 12

Fallopian tubes

Answer 12

Link ovaries to uterus

Question 13

Fetus

Answer 13

Week 9 to birth

Question 14

Folic acid

Answer 14

Vitamin B9 prevent neural tube defects

Question 15

Foramen ovale

Answer 15

Right atrium to left atrium

Question 16

Gametes

Answer 16

Sex cells - sperm and ova

Question 17

Gestation

Answer 17

Conception to birth 38-40 weeks

Question 18

Ductus arteriosus

Answer 18

Pulmonary artery to aorta

Question 19

HCG Human chorionic gonadotropin

Answer 19

Secreted by fertilized egg to maintain corpus luteum

Question 20

Lanugo

Answer 20

Soft, fine hair

Question 21

Amniotic fluid

Answer 21

Provides for fetal movement, stable temperature, and cushioning

Question 22

Ovum

Answer 22

Female gamete - egg

Question 23

Placenta

Answer 23

Provides nutrient and waste exchange

Question 24

Cervix

Answer 24

Protective portal to uterus

Question 25

Conception

Answer 25

When the sperm penetrates the ovum

Question 26

16 weeks

Answer 26

When sex/gender can be determined

Question 27

8 to 12 weeks

Answer 27

All body organs are basically formed

Question 28

20 weeks

Answer 28

Able to auscultate fetal heartbeat with fetoscope

Question 29

28 weeks

Answer 29

Surfactant formed

Question 30

Umbilical arteries

Answer 30

Carries deoxygenated blood

Question 31

Umbilical cord

Answer 31

2 arteries and 1 vein

Question 32

Ampulla

Answer 32

Outer third of fallopian tube

Question 33

Ductus venosus

Answer 33

Placenta to vena cava

Question 34

Zygote

Answer 34

Fertilized ovum

Question 35

Gestational Week 12

Answer 35

8 cm, 45 grams - Red blood cells are produced in the liver - Fusion of the palate is completed - External genitalia are developed to the point that sex of fetus can be noted with ultrasound - Eyelids are closed - Fetal heart tone can be heard by Doppler

Question 36

Gestational Week 16

Answer 36

14 cm, 20 grams - Lanugo is present on head - Meconium is formed in the intestines - Teeth begin to form - Sucking motions are made with the mouth - Skin is transparent

Question 37

Gestational Week 20

Answer 37

19 cm, 450 grams - Lanugo covers the entire body - Vernix caseosa covers the body - Nails are formed - Brown fat begins to develop

Question 38

Gestational Week 24

Answer 38

23 cm, 820 grams - Eyes are developed. - Alveoli form in the lungs and begin to produce surfactant. - Footprints and fingerprints are forming - Respiratory movements are detected

Question 39

Gestational Week 28

Answer 39

27 cm, 1300 grams - Eyelids are open. - Adipose tissue develops rapidly - The respiratory system has developed to a point that gas exchange is possible, but lungs are not fully mature

Question 40

Gestational Week 32

Answer 40

30 cm, 2100 grams - Bones are fully developed - Lungs are maturing - Increased amounts of adipose tissue are present

Question 41

Gestational Week 36

Answer 41

34 cm, 2900 grams - Lanugo begins to disappear. - Labia majora and minora are equally prominent - Testes in upper portion of scrotum

Question 42

Gestational Week 40

Answer 42

36 cm, 3400 grams - Fetus is considered full term at 38 weeks. - All organs/systems are fully developed

Question 43

Embryo

Answer 43

Conception up to 8 weeks gestation

Question 44

Perineum

Answer 44

Pubic symphysis

Question 45

Fundus

Answer 45

A pregnant uterus