Chapter 28: Pregnant And Human Devlopment

Once sperm are deposited into the vagina, sperm motility must be enhanced and they must be prepared to release hydrolytic enzymes from their acrosomes. What is this process called?

Which of the following occurs 21-30 weeks into pregnancy, during the fetal period?

Proteases and acrosin are enzymes. How do they function in reproduction?

Select the correct statement about fertilization.

T/F A zygote is usually formed within the uterus.

Together, what do the decidua basalis and the chorionic villi form?

T/F Implantation begins six to seven days after ovulation

Which germ layer gives rise to the nervous system?

Which of the following INCORRECTLY matches an embryonic structure with its function?

Muscle tissue is formed by the ________.

T/F Of the three germ layers, the mesoderm forms the most body parts.

Which fetal vascular shunt directly connects the right atrium to the left atrium so as to bypass the nonfunctional lungs?

What does the hormone relaxin promote?

Because of the increased bulkiness of the anterior abdomen and the change in a pregnant woman's center of gravity, what type of spinal curvature do many pregnant women develop?

Which of the following is the primary germ layer that forms the basis for the musculoskeletal system?

Which of the following occurs 9-12 weeks into pregnancy, during the fetal period?

Teratogens may cause anatomical abnormalities in an embryo, but do not cause anatomical abnormalities in a pregnant woman because ______.

Which body system of a pregnant woman undergoes the most dramatic physiological changes during pregnancy?

What role does oxytocin play in promoting labor?

T/F The placenta and its attached fetal membranes are collectively called the afterbirth.

What does the ductus arteriosus become at birth?

During pregnancy, which hormone is responsible for stimulating maturation of the breast for lactation?

Cleavage

Implantation

Fertilization

Gastrulation

Capacitation