Question

1. during a normal pregnancy, the baby develops inside the mother’s:

a. vagina.
b. cervix.
c. uterus.
d. placenta.

1. the ______ provides nourishment to the fetus, absorbs its waste, and produces hormones during pregnancy.

a. vagina
b. cervix
c. uterus
d. placenta

1. the fetus floats in a “bag of waters” that contains ______________ fluid.

a. amniotic
b. cerebrospinal
c. vaginal
d. synovial

1. a full - term pregnancy lasts approximately ______ days.

a. 190
b. 280
c. 370
d. 460

1. the first stage of labor is characterized by:

a. dilation of the cervix.
b. expulsion of the infant.
c. delivery of the placenta.
d. crowning at opening of birth canal.

Explanation:

• Question 6: The uterus is the organ where a baby develops during a normal pregnancy. The vagina is the birth canal, the cervix is the lower part of the uterus, and the placenta is an organ that provides nutrients to the fetus but is not where the fetus develops.
• Question 7: The placenta is an organ that develops during pregnancy. It provides nourishment to the fetus, absorbs its waste, and produces hormones. The vagina is the birth canal, the cervix is the lower part of the uterus, and the uterus is where the fetus develops, not the organ that provides these specific functions.
• Question 8: The fetus floats in the amniotic fluid, which is contained in the amniotic sac (the "bag of waters"). Cerebrospinal fluid is around the brain and spinal cord, vaginal fluid is in the vagina, and synovial fluid is in joints.
• Question 9: A full - term pregnancy lasts approximately 280 days. This is calculated from the first day of the last menstrual period.
• Question 10: The first stage of labor is characterized by the dilation of the cervix. The expulsion of the infant is the second stage, the delivery of the placenta is the third stage, and crowning (when the baby's head is visible at the opening of the birth canal) occurs during the second stage.

Answer:

1. c. uterus
2. d. placenta
3. a. amniotic
4. b. 280
5. a. dilation of the cervix