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Concept explainers
a.
To determine: The diagram that shows an infant with patent ductus arteriosus.
Introduction: A ductus arteriosus is a condition in developing fetus in which a blood vessel connects the main pulmonary artery to the descending aorta. It is the channel through which the majority of the blood goes into the aorta.
b.
To determine: The reason why the majority of blood bypasses the lungs of the fetus.
Introduction: The blood in the pulmonary artery of the developing fetus bypasses the lungs and enters inside the aorta with the help of ductus arteriosus.
c.
To determine: The circuit having the higher resistance if the systemic side is greater than the pulmonary side of the circulatory system.
Introduction: The fetal bypass channel closes during the first day after the childbirth but remains open in majority of the cases.
d.
To determine: The side of the heart that is required to generate a higher pressure for overcoming resistance if the flow in systemic and pulmonary circulations is equal.
Introduction: The ductus arteriosus usually closes during the first day after, but in some cases, surgery is required for closing this patent ductus arteriosus.
e.
To determine: The direction of flow of blood through patent ductus arteriosus.
Introduction: About 4,000 babies in the United States maintain an open ductus arteriosus. This patent ductus arteriosus require surgery in such patients.
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Chapter 15 Solutions
EBK HUMAN PHYSIOLOGY
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
- Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax CollegePrinciples Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning
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