Chapter 6 - Pregnancy and Childbirth Flashcards
1
Q
Conception
A
- Fertilization of the egg by the sperm
2
Q
How many sperm are released on average per ejaculation
A
- Between 200 and 400 million sperm
- 3 millilitres/ 1 teaspoon
- Only 200 to 300 get near the egg
3
Q
How long do sperm live in the vagina
A
- Typically 48 hours
- Can live for as long as 8 days
4
Q
How far can sperm swim
A
- 1 to 3 cm every hour
- Once arrived at the egg it is 3000 times their own lengths
5
Q
Where does fertilization of the egg occur
A
- In the fallopian tubes
6
Q
What is hyaluronidase
A
- Substance released by a sperm to help divide the “shell” on the egg so they can fertilize it
7
Q
What is a fertilized egg called
A
- Zygote
8
Q
What happens when the egg is fertilized
A
- It travels from the fallopian tube and implants itself in the uterus
9
Q
How long does the process of fertilization/implantation take
A
- About five days
10
Q
Pregnancy detection methods
A
- The absence of menstruation
- High basal body temperature that stays high for two week after ovulation
- Chemical human chorionic gonadotropin (HCG) tests in the women’s urine
- Pelvic/Cervix exams (later on)
11
Q
Basal body temperature
A
- Lowest body temperature while you’re resting
12
Q
Placenta
A
- Organ that connects the fetus to the uterine wall for gas and nutrient exchange
- Produces HCG
- Secretes hormones like estrogen and progesterone
- Keeps circulatory systems separate
13
Q
Nägele’s rule
A
- Calculation for expected due date
- Take the date of the first day of your last period
- Subtract three months
- Add 7 days
- Then add a year
- Usually born within a span of 10 days from this date
14
Q
The embryonic stage/First Trimester
A
- First 8 weeks of pregnancy dated from the first day of the last menstrual period (so really about 12 weeks)
- Placenta and amniotic sac develop during this stage
15
Q
Amniotic sac
A
- Sac filled with amniotic fluid that helps to protect the embryo from outside damage and harmful temperature changes
16
Q
What develops in the first month of gestation
A
- Major organs and organ systems
17
Q
What develops in the second month of gestation
A
- The umbilical cord becomes visible
- Facial features
- Hands
- Feet
- Body tissue
- Major blood vessels
- Liver, pancreas, and kidneys
18
Q
What happens in the third months of gestation
A
- Embryo starts to be referred as the fetus
- Human physical traits like limbs and fingers
- Testicular tissue develops
- Biological sex
- Nails, hair follicles, and eyelids
- Very vulnerable tome for the baby
19
Q
A
