Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 15, Problem 35RA
The part of the placenta that invades the mother's uterine lining (the endometrium) has recently been found to produce FAS ligand. What might this accomplish, and why might this action be necessary?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What are gratuitous inducers ? Explain importance of gratuitous inducers ?
Whatever the mechanisms, it has been estimated that 25–30% of human neural tube birth defects can be prevented if pregnant women take supplemental folate.
Estrogen works by binding to the ER. It includes two types ER alpha and ER beta and the two receptors are highly homologous. How might this be relevant in cancer?
Chapter 15 Solutions
Human Physiology
Ch. 15 - List the phagocytic cells found in blood and...Ch. 15 - Prob. 1bCPCh. 15 - Prob. 2aCPCh. 15 - Prob. 2bCPCh. 15 - Prob. 2cCPCh. 15 - Prob. 3CPCh. 15 - Prob. 4aCPCh. 15 - Prob. 4bCPCh. 15 - Prob. 5CPCh. 15 - Prob. 6aCP
Ch. 15 - Prob. 6bCPCh. 15 - Define the term histocompatibility antigens and...Ch. 15 - Prob. 7bCPCh. 15 - Prob. 8aCPCh. 15 - Prob. 8bCPCh. 15 - Prob. 8cCPCh. 15 - Prob. 8dCPCh. 15 - Prob. 9CPCh. 15 - Prob. 10aCPCh. 15 - Prob. 10bCPCh. 15 - Prob. 10cCPCh. 15 - Prob. 11CPCh. 15 - Prob. 12aCPCh. 15 - Prob. 12bCPCh. 15 - Which of these offers a nonspecific defense...Ch. 15 - Prob. 2RACh. 15 - Prob. 3RACh. 15 - Prob. 4RACh. 15 - Prob. 5RACh. 15 - Prob. 6RACh. 15 - Prob. 7RACh. 15 - Mast cell secretion during an immediate...Ch. 15 - Prob. 9RACh. 15 - Which of these cell types aids the activation of T...Ch. 15 - Prob. 11RACh. 15 - Delayed hypersensitivity is mediated by...Ch. 15 - Active immunity may be produced by...Ch. 15 - Which of these statements about class-2 MHC...Ch. 15 - Prob. 15RACh. 15 - Prob. 16RACh. 15 - Prob. 17RACh. 15 - Which of these statements about gamma interferon...Ch. 15 - Explain how antibodies help to destroy invading...Ch. 15 - Identify the different types of interferons and...Ch. 15 - Distinguish between the class-I and class-2 MHC...Ch. 15 - Prob. 22RACh. 15 - Prob. 23RACh. 15 - Describe how plasma cells attack antigens and how...Ch. 15 - Explain how tolerance to self-antigens may be...Ch. 15 - Use the clonal selection theory to explain how...Ch. 15 - Prob. 27RACh. 15 - Distinguish between immediate and delayed...Ch. 15 - Describe regulatory T lymphocytes and their...Ch. 15 - Prob. 30RACh. 15 - The specific T lymphocyte immune response is...Ch. 15 - Lizards are cold-blooded; their body temperature...Ch. 15 - Why are antibodies composed of different chains,...Ch. 15 - As a scientist trying to cure allergy, you are...Ch. 15 - The part of the placenta that invades the mother's...Ch. 15 - Describe the antigen-dependent and...Ch. 15 - People with peanut allergies could go into...Ch. 15 - Identify some immunologically privileged sites in...Ch. 15 - Use figure 15.6 to answer the following questions...Ch. 15 - Use figure 15.6 to answer the following questions...Ch. 15 - Prob. 41RACh. 15 - Prob. 42RA
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Abnormally high levels of prostate specific antigen (PSA) in a patient's blood is used to screen for prostate cancer. PSA is expressed in nomal, non-cancerous prostate cells. a) Why would elevated levels of PSA be suggestive of prostate cancer given what you know about cancer? Answer in no more than two sentences. b) Are high PSA levels sufficient to confim that a patient has prostate cancer, as opposed to a benign tumor? Why or why not? Explain in one sentence only.arrow_forward================================(Wearing a face mask, hand hygiene, and social distance); all of these are ways to break the chain of COVID-19. a.False. b.True. ================================Mosquitoes: are often carriers of biological vector-borne transmission; multiplication and development of the organism may not occurs. a.True. b.False.arrow_forwardThe chemotherapy agent, Tamoxifen, is effective at blocking the ability of estrogen to stimulate cell division. Where does Tamoxifen bind to influence this response? O to the estrogen receptor O to estrogen response elements O to the promoter region of estrogen responsive genes O to estrogen activator proteinsarrow_forward
- In many breast cancers, ER (alpha) activation by estrogens is generally considered responsible for enhanced proliferation, whereas that is counteracted by the presence of ER (beta),which exerts an antiproliferative effect. Please devise a strategy targeting both receptors for the treatment of this disease.arrow_forwardUsing specific molecular evidence, elaborate on the remark "oocyte activation entails inactivation."arrow_forward11) Postpartum estrus (PPE) is the period of receptivity immediately following parturition (giving birth). Select all that apply a) It occurs because the drop in progesterone levels resulting from the regression of the CL release DA from inhibition. b) A mouse can be pregnant and nursing a litter at the same time. If she is, the P4 coming from the CL of her pregnancy will prevent her from cycling from PPE to parturition. c) If a mouse mates with a sterile male during PPE, the resulting CL will still be maintained by the PRL released in response to suckling so she will not cycle from PPE to parturition. d) A mouse that breeds during PPE and continues to nurse the first litter may have a longer than normal gestation due to embryonic diapause. e) A mouse that breeds during PPE and continues to nurse the first litter may have a smaller than normal litter due to embryonic diapause.arrow_forward
- Although slow acting retroviruses lack oncogenes, retroviral infection can activate proto oncogenes leading to oncogenesis. a. Describe the mechanism of proto-oncogenes activation that can result from with infection with slow acting retroviruses. b. In what other ways can proto-oncogenes be converted to oncogenes?arrow_forward5) Briefly explain why the formation of a tumour can pose a risk to a person's homeostasis. 6) The functioning of the "Ras/MAPK" signal transduction pathway is absolutely essential in order for cells to grow, divide, and migrate. One important protein that is part of this pathway is BRAF. This protein is a kind of enzyme called a "kinase" – an enzyme that transfers a phosphate group onto another protein. In some melanomas, a mutated form of BRAF called BRAF Val600AGlu drives the progression of the cancer. The drug "vemurafenib" slows the progression of the cancer by slowing the production of the mutant BRAF protein. (National Cancer Institute. 2019. Types of Cancer Treatment. Retrieved from: https://www.cancer.gov/about-cancer/treatment/types/ Is this an example of a traditional cancer therapy or a targeted therapy? Briefly explain your reasoning in the space provided, using information provided in the text to support your answer. Type of therapy (traditional or targeted)?: Brief…arrow_forwardem 92 of 145 Z 92. During an experiment, a researcher inactivates the fibroblast growth factor receptor gene expressed on grandiosa celih Which of the folog A) Absence of androgen production B) Formation of tumors from thecal cells C) Inhibition of formation of the follicular antrum D) Premature ovulation E) Transformation of thecal cells into granulosa cellsarrow_forward
- Herceptin is an antibody that binds to a class of oestrogen receptors and is used to treat some types of breast cancer. What is the scientific foundation for its efficacy in the treatment of specific types of breast cancer?arrow_forwardPolychlorinated biphenyls (PCBS) are manufactured chemicals that were used for many years in materials such as inks and paints, as well as coolants for some electrical equipment. Since 1977, the manufacture and import of PCBS have been banned in Canada, but trace amounts of these persistent chemicals are still found in both our food and our bodies. PCBS are endocrine disruptors that mimic the effects of estrogen. Exposure to endocrine disruptors can |cause reduced fertility in men by decreasing the number of Sertoli cells in the testes. Exposure to PCBS has also been linked to the development of some forms of cancer. Cancer cells often have an abnormal number of chromosomes, which can be shown in a karyotype. 1. Explain which stage of mitosis is the best for showing an abnormal number of chromosomes in a cell.arrow_forwardA student wishes to carry out an investigation to determine the role of the drug CORA against MCF-7 cells. His interest is to be able to determine if the drug has anticancer activity. The question that the student wants to answer is: Will the CORA drug have the ability to inhibit estrogen receptors from binding to DNA?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
What is cancer? What causes cancer and how is it treated? *UPDATE*; Author: Cancer Treatment Centers of America - CTCA;https://www.youtube.com/watch?v=_N1Sk3aiSCE;License: Standard Youtube License