Lesson 9 Flashcards
Measured from the time of ovulation
Ovulation age
From 1st day of the last menstrual period is the gestational age
Length of pregnancy
These two takes place about 2 weeks after LMP
Ovlulation and fertilization
These are measured in lunar months or trimester
Ovulation age and Gestational age
How many months for pregnancy
10 months
9.5 lunar months or 3 full trimesters is equal to
38 weeks or 266 days
The spinal cord is formed and fused at midpoint
4th gestational week
Organogenesis is completed
8th week
Bone ossification forming
12th week
Discernible face features
8th week
Arms and legs developed
8th week
Sex distinguishable by outward appearance
12th week
Heartbeat audibles through doppler
12th week
Fetal heart sounds audible with ordinary stethoscope
16th week
Lanugo is formed
16th week
Sex determined by ultrasound
16th week
Hair forms, including eyebrows and hair on the head
20th week
What week is the second trimester
24th
Hearing can be demonstrated by response to sudden “sound”
24th week
Active production of lung surfactant
24th week
Birth position is assumed
32nd week
What week is the third trimester
40th week
Vernix caseosa is fully formed
40th week
What is the weight of baby in the 40th week
3000 grams
