Fertilization Process

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What is the duration of gestation in days?

320 days

240 days

270 days (correct)

300 days

During which stage of gestation is the offspring called an embryo?

Weeks 13-16

Weeks 9-12

Weeks 1-2

Weeks 3-8 (correct)

What is the function of the blastocoel?

It becomes the embryo (correct)

It forms the yolk sac

It becomes the placenta

It forms the amniotic cavity

What is the purpose of human chorionic gonadotropin (HCG)?

It allows the corpus luteum to survive Signup and view all the answers

What is a complication that can occur if the conceptus implants in a non-desirable location?

Ectopic pregnancy Signup and view all the answers

What is the function of the yolk sac?

It provides nutrients and blood cells to the fetus Signup and view all the answers

During which weeks does the placenta develop?

Weeks 4-12 Signup and view all the answers

What is the result of a lack of folate in the diet during pregnancy?

Spina bifida Signup and view all the answers

What is the average weight of a newborn in pounds?

5.5-8.8 lbs Signup and view all the answers

When is conception expected to have occurred?

Day 14 of the ovarian cycle Signup and view all the answers

What is the average amount of breast milk produced by a female per infant?

1.5 liters Signup and view all the answers

What is the property of breast milk that helps remove bilirubin from an infant?

Laxative property Signup and view all the answers

How many pairs of chromosomes do humans have?

23 pairs Signup and view all the answers

What is the term for the outward appearance and behavior of an individual?

Phenotype Signup and view all the answers

What is the term for a copy of a gene?

Allele Signup and view all the answers

What is the term for a gene that is not visible in the phenotype but can still be passed down to offspring?

Recessive gene Signup and view all the answers

What is the normal weight gain for a mother during the second and third trimesters?

1 lbs. per week Signup and view all the answers

Why does morning sickness occur during pregnancy?

Due to an increase in hormones and a decrease in peristalsis Signup and view all the answers

What is the purpose of the episiotomy during childbirth?

To cut the posterior vaginal wall and perineum Signup and view all the answers

What is the average time it takes for the cervix to dilate to 10cm?

6-12 hours Signup and view all the answers

What is the term for the release of the placenta after birth?

Afterbirth Signup and view all the answers

What is the reason babies have difficulty controlling their body temperature?

They have more surface area compared to volume Signup and view all the answers

What is the purpose of the Montgomery glands in breastfeeding?

To secrete oil to prevent chapping or cracking around the nipple Signup and view all the answers

What is the type of milk produced for the first 3 days postpartum?

Colostrum Signup and view all the answers

What is the APGAR score used to assess?

Neonatal health in the first few minutes Signup and view all the answers

What is the reason breastfeeding can't begin until the placenta is out?

The level of progesterone and estrogen is too high Signup and view all the answers

What is the purpose of capacitation in sperm cells?

To facilitate penetration of the oocyte Signup and view all the answers

After fertilization, how does the oocyte ensure no additional sperm penetrate?

Its plasma membrane depolarizes, and proteins remove remaining sperm Signup and view all the answers

What is the typical lifespan of an oocyte in the female reproductive tract?

1 day Signup and view all the answers