Anatomy & Physiology: An Integrative Approach
2nd Edition
ISBN: 9780078024283
Author: Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
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Question
Chapter 20.12, Problem 44WDYL
Summary Introduction
To determine:
The importance of closure of ductus arteriosus and foramen ovale after birth.
Concept introduction:
The cardiovascular system which is also known as circulatory system is a system which allows blood to flow throughout the body and transports nutrients, gases and other important enzymes in and out of the cells. The cardiovascular system is composed of two components: heart and the blood vessels. The three types of the blood vessels are: arteries, veins and capillaries.
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Chapter 20 Solutions
Anatomy & Physiology: An Integrative Approach
Ch. 20.1 - What are three differences in anatomic structure...Ch. 20.1 - Prob. 2WDYLCh. 20.1 - What type of capillary is the most permeable, and...Ch. 20.1 - How does a vein serve as a blood reservoir?Ch. 20.1 - Prob. 5WDYLCh. 20.2 - In which type of vessel is blood flow the slowest?...Ch. 20.3 - What substances are transported by diffusion...Ch. 20.3 - Prob. 8WDYLCh. 20.3 - How does the hydrostatic pressure change from the...Ch. 20.3 - Which two pressures have the largest values?...
Ch. 20.3 - If these lymph vessels were nonfunctional, what...Ch. 20.4 - In what ways is angiogenesis stimulated in...Ch. 20.4 - Prob. 13WDYLCh. 20.4 - What relationship exists between metabolic...Ch. 20.4 - Prob. 15WDYLCh. 20.5 - Prob. 16WDYLCh. 20.5 - Prob. 17WDYLCh. 20.5 - How is the small pressure gradient in veins...Ch. 20.5 - How is the pressure gradient to move blood through...Ch. 20.5 - How is resistance defined?Ch. 20.5 - What are the three factors that alter resistance?...Ch. 20.5 - Prob. 22WDYLCh. 20.6 - Prob. 23WDYLCh. 20.6 - What is the initial change to blood pressure when...Ch. 20.6 - Prob. 25WDYLCh. 20.6 - Prob. 26WDYLCh. 20.7 - Which organs have an increased proportion of...Ch. 20.8 - Prob. 28WDYLCh. 20.8 - Prob. 29WDYLCh. 20.9 - Prob. 30WDYLCh. 20.9 - Prob. 31WDYLCh. 20.10 - Prob. 32WDYLCh. 20.10 - Prob. 33WDYLCh. 20.10 - Prob. 34WDYLCh. 20.10 - What are the systemic arteries that supply...Ch. 20.10 - Prob. 36WDYLCh. 20.10 - Prob. 37WDYLCh. 20.10 - Prob. 38WDYLCh. 20.11 - Prob. 39WDYLCh. 20.11 - Prob. 40WDYLCh. 20.11 - Prob. 41WDYLCh. 20.11 - Prob. 42WDYLCh. 20.12 - List the five structures of fetal circulation, and...Ch. 20.12 - Prob. 44WDYLCh. 20 - _____ 1. Which of the following is not a...Ch. 20 - _____ 2. Which statement is accurate about veins?...Ch. 20 - _____ 3. Vasa vasorum are found in the tunica...Ch. 20 - _____ 4. Which of the following decreases...Ch. 20 - _____ 5. The __________ is a type of vessel with...Ch. 20 - _____ 6. An increase in _____ will result in an...Ch. 20 - Prob. 7DYKBCh. 20 - _____ 8. Velocity of blood flow is the slowest in...Ch. 20 - _____ 9. Blood pressure is regulated by the a....Ch. 20 - _____ 10. Name the correct pathway that blood...Ch. 20 - Prob. 11DYKBCh. 20 - Prob. 12DYKBCh. 20 - Explain the difference between hydrostatic and...Ch. 20 - Write the formula for determining net filtration...Ch. 20 - Prob. 15DYKBCh. 20 - Prob. 16DYKBCh. 20 - Briefly explain how changes in cardiac output,...Ch. 20 - Compare how the cardiac center and vasomotor...Ch. 20 - Prob. 19DYKBCh. 20 - What postnatal changes occur in the heart and...Ch. 20 - If a patient has cirrhosis of the liver and is...Ch. 20 - Prob. 2CALCh. 20 - Prob. 3CALCh. 20 - Prob. 4CALCh. 20 - Prob. 5CALCh. 20 - Prob. 1CSLCh. 20 - Arteries tend to have a lot of vascular...Ch. 20 - Explain why an overweight individual with high...
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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
- What symptoms may appear in a newborn if its ductus arterio-sus fails to close?arrow_forwardIn some children, the ductus arteriosus stays open after birth (called patent ductus arteriosus). Why is having an open ductus arteriosus a problem after the baby is born?arrow_forwardExamine the diagram of fetal circulation again. Why is the umbilical vein red? Why aren’t the pulmonary veins red like they would be in adult circulation? What is the function of the ductus venosus?arrow_forward
- Why is hypertension particularly dangerous for a pregnant woman in the later stages of pregnancy?arrow_forwardDuring pregnancy, the fetal circulatory system works differently than after birth. Answer the following questions: What are the fetal blood vessels that underwent transformation as a result of transition from a fetus to a newborn? What are the underlying reasons behind these changes? Give examples of diseases resulting from failure of these changes to develop normally.arrow_forwarda) If fetal glucose consumption declines, how does the glucose concentration gradient between fetal circulation and the intervillous space change? b) When fetal glucose consumption declines, how is the concentration gradient between parental circulation and the intervillous space impacted? c) When fetal glucose consumption declines, placental tissue adjusts its consumption of glucose to maintain a constant concentration gradient between the fetal circulation and the intervillous space. In order to maintain this gradient, would you expect placental tissue to increase or decrease its glucose consumption, and why is this the case?arrow_forward
- Which two features of the fetal circulation system allows the blood to bypass the lungs?arrow_forwardExplain why it is so important that the blood of mother and offspring do not mix together in the placenta. List the structural features of the placenta that contribute to efficient exchange and explain why each is important.arrow_forwardWhat is the illustrations of the flow of blodd from chambers of the heart to the mammary gland of a milking cow?arrow_forward
- Explain how the structure of the placenta prevents mixing of fetal and maternal blood while allowing for the exchange of substances between the mother and the fetus.arrow_forwardAfter birth, there is production and secretion of milk from the mother'smammary glands.a) Discuss the similarities and differences observed in the stages ofdevelopment of the adult breast tissue, specifically from the nonpregnant, to the pregnant and finally to the lactating stage.b) Why is it normally only after birth that lactogenesis occurs?arrow_forwardSeeing that the placenta acts as a barrier protecting the baby from harmful substances the mother may consume, how come some babies develop ailments like Fetal Alcohol Syndrome? Are there some substances that render the protective function of the placenta less useful than required?arrow_forward
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