As the chorionic villi grow into the endometrium they

Info icon This preview shows pages 2–5. Sign up to view the full content.

View Full Document Right Arrow Icon
15) As the chorionic villi grow into the endometrium, they contain blood vessels of the: A) decidua. B) amnion. C) allantois. D) yolk sac. Answer: C Topic: EMBRYONIC AND FETAL DEVELOPMENT 16) Which of the following would be an expected change in the mother during pregnancy? 2
Image of page 2

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
19) The structure responsible for delivering oxygenated blood to the embryo (and later the fetus) from the placenta is the: 20) Fusion of the neural folds produce the which will eventually give rise to the brain and spinal cord. 21) Which of the following structures actually gets implanted into the endometrium of the uterus during implantation? A) blastomeres B) inner cell mass C) trophoblast D) all of the above Answer: D Topic: BLASTOCYST FORMATION 22) The most common site for ectopic pregnancies is the: TRUE/FALSE. Write "T" if the statement is true and "F" if the statement is false. 23) In order for fertilization to occur, sperm must be present in the female sometime during the first 24 hours following ovulation. Answer: TRUE Topic: FERTILIZATION 25) The morula develops into a blastocyst by day five, at which time the embryo enters the uterine cavity. Answer: TRUE 3
Image of page 3
Topic: CLEAVAGE 26) The three main parts of the blastocyst are trophoblast, inner cell mass, and blastocele. Answer: TRUE Topic: CLEAVAGE 27) The syncytiotrophoblast and the cytotrophoblast are two layers of the endometrium that are involved in placenta formation. Answer: FALSE Topic: IMPLANTATION 28) The umbilical cord contains three blood vessels: two umbilical arteries and one umbilical vein. Answer: TRUE Topic: EMBRYONIC AND FETAL DEVELOPMENT 29) The embryonic disc appears first as a bilayered structure of ectoderm and endoderm next to the amniotic cavity. Answer: TRUE Topic: EMBRYONIC AND FETAL DEVELOPMENT 30) The ectoderm of the embryonic disc eventually gives rise to all nervous tissue, the epidermis of the skin, and epithelium of the oral and nasal cavities. Answer: TRUE Topic: EMBRYONIC AND FETAL DEVELOPMENT 31) The time from fertilization to birth is the _____ period, the first two months of which is the _____ period. Answer: gestation, embryonic Topic: EMBRYONIC AND FETAL DEVELOPMENT ESSAY. Write your answer in the space provided or on a separate sheet of paper. 35) Describe the events leading up to and including fertilization, starting after the deposition of the sperm in the female reproductive tract. Answer: The answer should include a description of capacitation of sperm and events leading up to the formation of the segmentation nucleus of the zygote, as found on p. 826. Topic: FERTILIZATION 37) Describe the production and functions of the amniotic fluid.
Image of page 4

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern