EBK PRINCIPLES OF ANATOMY AND PHYSIOLOG
16th Edition
ISBN: 9781119662686
Author: DERRICKSON
Publisher: VST
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Chapter 21, Problem 38CP
Summary Introduction
To review:
The physiology and anatomy of fetal circulation and the functions of foramen ovale, umbilical arteries, ductus arteriosus, umbilical vein, and ductus venosus.
Introduction:
The blood circulation that occurs in a fetus (unborn baby) is termed as fetal circulation. The special structures in fetal circulation enable developing embryo to exchange materials like nutrients with its mother.
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Tell which vessel is missing from the following vascular circuit: Tracing the circulation to and from the placenta, a drop of blood travels in the fetus from the left ventricle to the aorta, to a common iliac artery, to an internal iliac artery, to an umbilical artery, to capillaries in the placenta, to the ductus venosus, to a hepatic vein, to the inferior vena cava, to the right atrium, to the foramen ovale, to the left atrium, and to the left ventricle. (a) umbilical vein, (b) ligamentum arteriosum, (c) internal carotid artery, (d) capillaries in the small intestine.
List the five structures of fetal circulation, and identify the function of each.
Trace the blood flow in the fetal circulation from the placenta to the heart and then back to the placenta. Indicate where it bypasses regular adult circulatory pathways. Indicate all structures the blood passes through (including valves). Also indicate where it turns from oxygenated into deoxygenated and back again.
Chapter 21 Solutions
EBK PRINCIPLES OF ANATOMY AND PHYSIOLOG
Ch. 21 - Prob. 1CPCh. 21 - Prob. 2CPCh. 21 - Prob. 3CPCh. 21 - Prob. 4CPCh. 21 - Prob. 5CPCh. 21 - Prob. 6CPCh. 21 - Prob. 7CPCh. 21 - Prob. 8CPCh. 21 - Prob. 9CPCh. 21 - Prob. 10CP
Ch. 21 - Prob. 11CPCh. 21 - Prob. 12CPCh. 21 - Prob. 13CPCh. 21 - Prob. 14CPCh. 21 - Prob. 15CPCh. 21 - Prob. 16CPCh. 21 - Prob. 17CPCh. 21 - Prob. 18CPCh. 21 - Prob. 19CPCh. 21 - Prob. 20CPCh. 21 - Prob. 21CPCh. 21 - 22. Describe the types of shock and their causes...Ch. 21 - What is the purpose of systemic circulation?Ch. 21 - Prob. 24CPCh. 21 - Prob. 25CPCh. 21 - Prob. 26CPCh. 21 - Prob. 27CPCh. 21 - Prob. 28CPCh. 21 - Prob. 29CPCh. 21 - Prob. 30CPCh. 21 - Prob. 31CPCh. 21 - Prob. 32CPCh. 21 - Prob. 33CPCh. 21 - Prob. 34CPCh. 21 - Prob. 35CPCh. 21 - Prob. 36CPCh. 21 - Prob. 37CPCh. 21 - Prob. 38CPCh. 21 - Prob. 39CPCh. 21 - Prob. 40CPCh. 21 - 1. Kim Sung was told that her baby was born with a...Ch. 21 - 2. Michael was brought into the emergency room...Ch. 21 - Prob. 3CTQ
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- Circulation of blood inside a human fetus’ body is different than that of an adult. Describe one functional or structural difference between adult and fetal circulation (other than the size of the organs), and explain why it is important during development.arrow_forwardList the three fetal structures of normal circulation during the gestation and what each structure doesarrow_forwardDescribe the steps a nurse uses to auscultate fetal heart tones. Why is auscultation important?arrow_forward
- Name the structures in the fetal circulation that stop functioning at birth. What becomes of these structures?arrow_forwardDescribe the patterns of blood flow in interatrial and interventricular septal defects, and in a patent foramen ovale in both a fetus and an adult.arrow_forwardLocate the following blood vessels (in bold) in the fetal pigl Arteries: aorta (arch)---dorsal to the pulmonary trunk anterior vena cava and posterior vena cava. brachiocephalic artery--- the first branch off the aorta The brachiocephalic artery branches into three other arteries: the right subclavian (passes under the clavicle), and the right and left carotid arteries The right subclavian continues and becomes the right axillary then right brachial artery. The left subclavian artery is dorsal to the brachiocephalic off of the aortic arch Follow the aorta dorsally where it becomes the dorsal or descending aorta , then the abdominal aorta The renal artery that connects the kidney to the medial abdominal aorta At about the level of the renal artery, you may see the very tiny (diameter) gonadal arteries. The abdominal aorta terminates in four branches: the right and left external iliac, and the right and left internal iliac arteries. The…arrow_forward
- Detail the cardiac cycle. Include: what is happening in each phase, heart sounds, etc.arrow_forwardDraw and Label the sheep’s heart in the external anterior and posterior views. Include the coronary arteries and cardiac veins. List the similarities and differences in the microanatomy of arteries and veins.arrow_forwardName the blood vessels carrying blood to the left atrium.arrow_forward
- How is the heart developed and what are the areas of potential abnormalities which may develop through the embryonic and fetal periods?arrow_forwardPredict the effects if the foramen ovale or ductus arteriosus fails to close shortly after birth??arrow_forwardDescribe the position and attachments of the parietal pericardium of the heart of the fetal pig.arrow_forward
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