Chapter 2

Question 1

Conception

Answer 1

Act of becoming pregnant

Question 2

Ovulation

Answer 2

ovary’s release of mature egg into the cavity near the end of one of fallopian tubes

Question 3

Feralization

Answer 3

Occurs during the exact moment the egg and the sperm combine

Question 4

Zygote

Answer 4

Genetic material in the egg + sperm combine 2 form a single cell called a zygote.

Question 5

blastocyst

Answer 5

mass of cells formed by zygote cell devision

Question 6

Embryo

Answer 6

product of conception from point of attachment to uterus to 8 weeks gestation

Question 7

Gestation

Answer 7

period of time from conception

Question 8

fetus

Answer 8

8 weeks till birth

Question 9

How can pregnancy be diagnosed

Answer 9

lab test
observing mothers symptoms
performing physical examination

Question 10

missed period

Answer 10

many 1st aware of pregnancy
can have other causes
lab tests still needed

Question 11

Human Chronic Gonadotropin (HCG)

Answer 11

• in woman’s urine/blood
• secreted by placenta
• lab tests can detect after 8 days
• at home tests, detect after 1st day since period supposed to start.

Question 12

At home tests

Answer 12

• 99% accurate

- false negatives more common

Question 13

length of average pregnancy

Answer 13

280 days

Question 14

What is the most critical trimester

Answer 14

1st

Question 15

1st month

Answer 15

• primitive heart + digestive system
• basic initiation brain + nervous system
• small buds for arms and legs

Question 16

2nd month

Answer 16

facial features recognizable

Question 17

3rd month

Answer 17

• formation of arms, hands, legs and feet

- fetal movement frequently detected.

Question 18

Symptoms

Answer 18

• most 1st trimester

- due to increase in hormones

Question 19

2nd trimester baby

Answer 19

• fairly regular heartbeat
• sleep + wake at regular times
• thumb inserted into mouth

Question 20

2nd trimester mother

Answer 20

• most unappealing symptoms subside
• feel fetus move
• belly expands
• edema - water retention - swelling

Question 21

3rd trimester baby

Answer 21

• complete development

- 26 week viability, survive outside body

Question 22

3rd trimester mother

Answer 22

• uterus expands
• belly large + heavy
• weigh stresses muscles + skeleton (backache + cramps)
• pressure on organs

Question 23

Nutrition

Answer 23

• gain 25-35 pounds
• 300-500 additional calories
• need protein, iron, calcium, folic acid, vitamin B

Question 24

Too little weight gain

Answer 24

• low birth weight
• increase risk of mental motor impairment
• higher infant mortality

Question 25

Too much weight gain

Answer 25

• increase risk of miscarriage, complications and birth defects

Question 26

Drugs

Answer 26

• may cross placenta + enter bloodstream of the fetus.

- teratogens cause fetus malformations