Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 28, Problem 10RQ
The inner cell mass of the blastocyst is destined to become the ________.
- embryo
- trophoblast
- chorionic villi
- placenta
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Pregnancy begins when __________.
ovulation occurs
a woman has her period
the egg and sperm join
a man and woman have intercourse
The external genitalia of the fetus can be distinguished as male or female by about ___ weeks after fertilization.
21 Label Figure 16.41 with the terms below.
O Amnion
O Amniotic cavity
O Chorion
O Chorionic villi
O Maternal arteries and veins
O Placenta
O Placental sinus
O Umbilical arteries
O Umbilical vein
O Yolk saç
00
FIGURE 16.41 Embryo in uterus
Chapter 28 Solutions
Anatomy & Physiology
Ch. 28 - View this time-lapse movie...Ch. 28 - Visit this site...Ch. 28 - Sperm and ova are similar in terms of ________....Ch. 28 - Although the male ejaculate contains hundreds of...Ch. 28 - As sperm first reach the oocyte, they will contact...Ch. 28 - Fusion of pronuclei occurs during ________....Ch. 28 - Sperm must first complete ________ to enable the...Ch. 28 - Cleavage produces daughter cells called ________....Ch. 28 - The conceptus, upon reaching the uterus, first...Ch. 28 - The inner cell mass of the blastocyst is destined...
Ch. 28 - Which primary germ layer gave rise to the cells...Ch. 28 - What would happen if the trophoblast did not...Ch. 28 - During what process does the amnion envelop the...Ch. 28 - The placenta is formed from ________. the embryos...Ch. 28 - The foramen ovale causes the fetal circulatory...Ch. 28 - What happens to the urine excreted by the fetus...Ch. 28 - During weeks 9–12 of fetal development,...Ch. 28 - Progesterone secreted by the placenta suppresses...Ch. 28 - Which of the following is a possible culprit of...Ch. 28 - How does the decrease in progesterone at the last...Ch. 28 - Which of these fetal presentations is the easiest...Ch. 28 - Which of these shunts exists between the right and...Ch. 28 - Why is brown fat important? It is the newborns...Ch. 28 - Constriction of umbilical blood vessels during...Ch. 28 - Alveoli are connected to the lactiferous sinuses...Ch. 28 - How is colostrum most important to a newborn? It...Ch. 28 - Mature breast milk ________. has more sodium than...Ch. 28 - Marfan syndrome is inherited in an autosomal...Ch. 28 - In addition to codominance, the ABO blood group...Ch. 28 - Zoe has cystic fibrosis. Which of the following is...Ch. 28 - Darcy and Raul are having difficulty conceiving a...Ch. 28 - Sherrise is a sexually active college student. On...Ch. 28 - Approximately 3 weeks after her last menstrual...Ch. 28 - The Food and Nutrition Board of the Institute of...Ch. 28 - What is the physiological benefit of incorporating...Ch. 28 - Why would a premature infant requite supplemental...Ch. 28 - Devin is 35 weeks pregnant with her first child...Ch. 28 - Janine is 41 weeks pregnant with her first child...Ch. 28 - Describe how the newborns fust breath alters the...Ch. 28 - Newborns are at much higher risk for dehydration...Ch. 28 - Describe the transit of breast milk from...Ch. 28 - A woman who stopped breastfeeding suddenly is...Ch. 28 - Explain why it was essential that Mendel perform...Ch. 28 - How can a female carrier of an X-linked recessive...
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- Telomeres ___________. Group of answer choices are similar in function to free radicals None of these are true are transmitted through breast milk in infants can explain menopausearrow_forwardSexual differentiation begins close to 4 weeks after fertilization, but cannot be seen visually until about 6 weeks post fertilization. All fetuses begin with a ______________________ gonad that is able to become either ovaries or testes, depending on the presence or absence of the Y chromosome. If the Y chromosome is present, a region of the Y chromosome will begin expressing genes that start the process of masculinization of internal structures. This region is known as the ______________________________ region or ___________ for short. The expression of these genes causes the bipotential gonad to develop into the testes. Once the testes have started developing, two hormones, testosterone and Anti-MüllerianHormone are produced. Testosterone causes the _____________________ ducts to develop into the _____________________. Testosterone also causes the internal development of the __________________ and __________________. Anti-Müllerian Hormone causes the ______________________ ducts…arrow_forwardWhat is the outer layer (outer cell mass) of the blastocyst termed Trophoblast O Embryoblast Epiblast Hypoblastarrow_forward
- The term __________ refers to the entire lower area of the abdomen. inguinal umbilicusarrow_forwardDuring cleavage, the _______ is converted to a ball of cells, which in turn is transformed into the __________. a. zygote; blastocyst b. trophoblast; embryonic disk c. ovum; embryonic disk d. blastocyst; embryonic diskarrow_forwardPregnant women exposed with contaminated environment. (a) possible abnormalities (b) situation when corpus luteum start to regress at second trimesterarrow_forward
- During third trimester of pregnancyarrow_forwardDuring meosis I __________ are segregated, with each pair of chromosomes __________ Crossing over ___________arrow_forwardAll germ cells beginning with the ______are genetically different from the rest of thebody cells and therefore must be protectedby the blood–testis barrier.arrow_forward
- The period of development during which the contents of a zygote is divided into smaller and smaller cells is ___________.arrow_forwardWhich letter represents the site of oogenesis? -D -E O A O E OD ABarrow_forward“Each and every coitus does not results in fertilisation and pregnancy”. Justify the statement.arrow_forward
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