Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 61, Problem 6PL
The zonapellucida gel layer surrounds the secondary oocyte and early development stages through the morula.
a. True
b. False
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Match the terms in column A with the descriptions in column B.
Column A
a. blastocystb. chorionic villic. ectodermd. endoderme. mesodermf. morulag. trophoblastColumn B
1. germ layer that gives rise to muscle and bone tissues2. hollow ball of cells3. cells forming wall of blastocyst4. solid ball of about sixteen cells5. inner germ layer of embryonic disk6. slender extensions that grow out from the trophoblast7. outer germ layer of embryonic disk
Which row correctly identifies the function and source of hCG, respectively?
Select one:
a.
Function
Source
Stimulates FSH
Anterior pituitary
b.
Function
Source
Aids implantation
Uterus
c.
Function
Source
Maintains corpus luteum
Trophoblast and placenta
d.
Function
Source
Stimulates estrogen
Ovary
IDENTIFY the label of the sea urchin's TESTIS as to what CELLS are being pointed at. Please make sure that the answer is a cella. b.
Chapter 61 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 61 - The ovum and sperm unite and form a diploid cell...Ch. 61 - The ________ is the development stage that...Ch. 61 - Which of the following is not an extraembryonic...Ch. 61 - The placenta is comprised of a. only the...Ch. 61 - The embryonic stage of human development exists a....Ch. 61 - The zonapellucida gel layer surrounds the...Ch. 61 - A single completed oogenesis sequence produces...Ch. 61 - A single completed spermatogenesis sequence...Ch. 61 - Human gametes Contain ______________ chromosomes.Ch. 61 - The diploid number of human chromosomes found in...
Ch. 61 - To create genetic variation, ______________...Ch. 61 - To create genetic variation, ______________...Ch. 61 - The cell resulting from fertilization is called...Ch. 61 - Tiny cells that form during meiotic divisions of...Ch. 61 - Fertilization and early embryonic development...Ch. 61 - A solid ball of about sixteen cells is called a...Ch. 61 - The part of meiosis that is most similar to...Ch. 61 - Meiosis I reduces the chromosome number in half,...Ch. 61 - Implantation of the ____________ into the...Ch. 61 - The two-cell, four-cell, eight-cell, and morula...Ch. 61 - Match the terms in column A with the descriptions...Ch. 61 - Summarize your observations of any similarities...
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- During the first trimester, hCG produced from the chorion maintains the corpus luteum. What is the purpose of maintaining the corpus luteum? Select one: a. The corpus luteum produces relaxin, which thickens the endometrium. b. The corpus luteum ensures that the endometrium does not break down during the first trimester. c. The corpus luteum supports the formation of the placenta. d. The chorion forms the fetal part of the placenta, and the corpus luteum supports the maternal part of the placenta.arrow_forwardWhich of the following is the best explanation for the mechanism, of the action of the intrauterine device (IUD)? A. Hyperperistalsis of the fallopian tubes accelerates oocyte transport and prevents fertilization B. A sub-acute or chronic bacterial endometritis interferes with implantation C. Premature endometrial sloughing associated with menorrhagia causes early abortion D. A sterile inflammatory response of the ometrium prevents implantation E. Cervical mucus is rendered impenetrable to migrating spermarrow_forwardA baby born with ovaries will already have all of the eggs cells their body will ever make. A.True B.Falsearrow_forward
- How do tubal ligations and vasectomies prevent further pregnancies? Select one: a. The corpus luteum and the epididymis are suppressed using a chemical swab. The fertilized egg could no longer implant in the endometrium. b. The Fallopian tubes and vas deferens are cut and tied off, thereby preventing the movement of the eggs and sperm. c. The Fallopian tubes and the vas deferens are cut. Eggs and sperm can no longer be produced. d. The Fallopian tube and vas deferens are cut and tied off, thereby reducing needed reproductive hormone levels.arrow_forwardWhich of the following statement is accurate? a. Passage of meconium in uterus always indicates fetal compromise b. Meconium stained amniotic fluid is never normal in post term pregnancies c. Life-threatening neonatal respiratory distress can result from meconium aspiration d. Fetal heart rate monitoring should not be used when the amniotic fluid in stainedarrow_forwardWhich of the following rows correctly identifies the locations of fertilization and the development of the fertilized ovum? Select one: a. Fertilization Development of the fertilized ovum Fallopian tube Uterus b. Fertilization Development of the fertilized ovum Ovary Uterus c. Fertilization Development of the fertilized ovum Fimbriae Endometrium d. Fertilization Development of the fertilized ovum Uterus Endometriumarrow_forward
- Which is/are true concerning oviducts? a. the lumen of the oviduct is highly folded b. the oviduct walls contain smooth muscle that promotes the movement of sperm through the oviduct c. the epithelium facing the lumen of the oviduct has cells that are ciliated, and which serve to help move ova, or fertlized ova, to the lumen of the uterus d. secretory cells lining the oviduct produce secretions that kill spermarrow_forwardDiscuss the importance of the acrosomal cap of the sperm. Give its importance during fertilization.arrow_forwardA woman has been diagnosed with a ruptured ectopic pregnancy. Which of the following signs/symptoms is characteristic of this diagnosis? A. Dark brown rectal bleeding. B. Severe nausea and vomiting. C. Sudden lower quadrant pain earlier in the pregnancy. D. Marked hyperthermia.arrow_forward
- Which of the following statements does NOT correctly describe the events following fertilization? Select one: a. Only the inner cell mass cells in a blastocyst are pluripotent. b. The trophoblast has an important role in maintaining the pregnancy, as it prevents the endometrium from shedding. c. As hCG takes over maintaining the endometrium immediately after implantation, the corpus luteum degenerates into the corpus albican. d. All 16 cells in a morula are truly totipotent, meaning that they can become any cells in the human body.arrow_forwardName 5 new structures that appeared in the 33-hours chick embryo and indicate the germ layer derivative and adult fate. STRUCTURE GERM LAYER DERIVATIVE/S ADULT FATE 1. 2. 3. 4. 5.arrow_forwardWhich structure is influenced by the LH surge? Select one: a. 5, which is the ovum b. 2, which is the corpus luteum c. 3, which is the ovum d. 3, which is the corpus luteumarrow_forward
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