Human Biology
16th Edition
ISBN: 9781260482799
Author: Mader, Sylvia
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 18, Problem 1TC
At-home pregnancy tests check for the presence of HCG in a female's urine. Where does HCG come from? Why is HCG found in a pregnant woman's urine?
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hCG, estrogen and progesterone are hormones that are secreted throughout pregnancy. Answer the following questions about these hormones.1) Identify the structure that initially secretes hCG 2) Describe the function of hCG and identify the trimester where the hCG level is the highest 3) What are the roles of estrogen & progesterone in pregnancy 4) What structure initially secretes estrogen & progesterone? 5) What structure takes over the role of secreting hCG, estrogen & progesterone in the second and third trimesters?
At-home pregnancy tests check for the presence of HCG in a female’s urine. Where does HCG come from? Why is HCG found in a pregnant woman’s urine?
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Chapter 18 Solutions
Human Biology
Ch. 18.1 - Prob. 1LOCh. 18.1 - Describe the steps in fertilization.Ch. 18.1 - Distinguish between the functions of the corona...Ch. 18.1 - Explain what prevents multiple sperm from...Ch. 18.2 - Prob. 1LOCh. 18.2 - Prob. 2LOCh. 18.2 - Prob. 3LOCh. 18.2 - Prob. 4LOCh. 18.2 - Prob. 1CYPCh. 18.2 - Describe the function of the extraembryonic...
Ch. 18.2 - Prob. 3CYPCh. 18.3 - Prob. 1LOCh. 18.3 - Prob. 2LOCh. 18.3 - Prob. 3LOCh. 18.3 - Prob. 4LOCh. 18.3 - 1. Besides tobacco, alcohol. and illegal drugs,...Ch. 18.3 - Prob. 1CYPCh. 18.3 - Prob. 2CYPCh. 18.3 - Prob. 3CYPCh. 18.4 - Prob. 1LOCh. 18.4 - Summarize the events that occur during each stage...Ch. 18.4 - Prob. 1CYPCh. 18.4 - Maternal blood carbon dioxide levels fall by 20%...Ch. 18.4 - Describe the three stages of labor.Ch. 18.5 - Prob. 1LOCh. 18.5 - Prob. 2LOCh. 18.5 - What is the role of the hippocampus, and how does...Ch. 18.5 - Prob. 2BTHCh. 18.5 - Prob. 1CYPCh. 18.5 - Prob. 2CYPCh. 18.5 - Prob. 3CYPCh. 18 - Prob. 1ACh. 18 - Prob. 2ACh. 18 - Label each of the indicated stages of...Ch. 18 - Prob. 4ACh. 18 - Prob. 5ACh. 18 - Prob. 6ACh. 18 - Prob. 7ACh. 18 - Prob. 8ACh. 18 - Prob. 9ACh. 18 - Prob. 10ACh. 18 - Prob. 11ACh. 18 - Prob. 12ACh. 18 - Prob. 13ACh. 18 - Prob. 14ACh. 18 - At-home pregnancy tests check for the presence of...Ch. 18 - Prob. 2TCCh. 18 - Prob. 3TC
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- Situation: Karen is a 30 year-old woman, 16 weeks pregnant, who comes for a first prenatal visit.She is conncerned because she did not realize she was pregnant until a week ago. Because of thhis she has been actively dieting (2 diet drinks plus one meal of vegetables daily) plus lifting weights at a health club. Karen wants her urine tested because “ I have to go alll the time”. She doesn't want any blood work done because Karen does not have any insurance. Karen has not had a pelvic examination since she was in senior high school, when she had a vaginal infection. Karen is single, lives by herself in one-bedroom. She is working at a laundry shop and her boyfriend is a salesman, out of town 5 days a week. Karen had her menarche at the age of 11; menstrual cycle every 28 days, 6 days duration with moderate flow and mild cramps. Past history positive for sinusitis and appendectomy at age 12 years. Smokes about ½ pack of cigarettes per day (“more when I’m stressed at work”); denies…arrow_forwardWhile blood type incompatibility is rarely a problem during pregnancy, Rh incompatibility can be. Rh incompatibility will occur only if the mother is Rh and the child is Rh*. Why? Why does problem posed by Rh incompatibility manifest itself on subsequent but not the first pregnancy involving an Rh* child? (i) (ii) Rhogam, the treatment for Rh incompatibility disease, needs to be administeredshortly after delivery in order to be effective. Why?arrow_forwardSituation: Karen is a 30 year-old woman, 16 weeks pregnant, who comes for a first prenatal visit.She is conncerned because she did not realize she was pregnant until a week ago. Because of thhis she has been actively dieting (2 diet drinks plus one meal of vegetables daily) plus lifting weights at a health club. Karen wants her urine tested because “ I have to go alll the time”. She doesn't want any blood work done because Karen does not have any insurance. Karen has not had a pelvic examination since she was in senior high school, when she had a vaginal infection. Karen is single, lives by herself in one-bedroom. She is working at a laundry shop and her boyfriend is a salesman, out of town 5 days a week. Karen had her menarche at the age of 11; menstrual cycle every 28 days, 6 days duration with moderate flow and mild cramps. Past history positive for sinusitis and appendectomy at age 12 years. Smokes about ½ pack of cigarettes per day (“more when I’m stressed at work”); denies…arrow_forward
- c) With reference to the intervillous space and chorionic villi specifically, outline how the maternal and foetal blood are not permitted to mix during pregnancy, and explain why this is so important.arrow_forwardSituation: Karen is a 30 year-old woman, 16 weeks pregnant, who comes for a first prenatal visit.She is conncerned because she did not realize she was pregnant until a week ago. Because of thhis she has been actively dieting (2 diet drinks plus one meal of vegetables daily) plus lifting weights at a health club. Karen wants her urine tested because “ I have to go alll the time”. She doesn't want any blood work done because Karen does not have any insurance. Karen has not had a pelvic examination since she was in senior high school, when she had a vaginal infection. Karen is single, lives by herself in one-bedroom. She is working at a laundry shop and her boyfriend is a salesman, out of town 5 days a week. Karen had her menarche at the age of 11; menstrual cycle every 28 days, 6 days duration with moderate flow and mild cramps. Past history positive for sinusitis and appendectomy at age 12 years. Smokes about ½ pack of cigarettes per day (“more when I’m stressed at work”); denies…arrow_forwardDiscuss the hormonal and other changes in the maternalbody during pregnancy.arrow_forward
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