Pearson eText Biology: Science for Life with Physiology -- Instant Access (Pearson+)
6th Edition
ISBN: 9780135214114
Author: Colleen Belk, Virginia Maier
Publisher: PEARSON+
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Chapter 20, Problem 5LTB
Summary Introduction
Introduction:
The blood vessels are the part of the circulatory system, whose function is to transport blood to the whole body. These vessels carry nutrients, oxygen, carbon dioxide, and waste along with the blood. There are three major blood vessels, arteries, veins, and capillaries.
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The left and right sides of the heart are separated by a structure called the ___ .
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Large arteries such as the aorta stretch with each pulse of blood, so they contain lots of ____ tissue.
Chapter 20 Solutions
Pearson eText Biology: Science for Life with Physiology -- Instant Access (Pearson+)
Ch. 20 - Describe how contraction of the diaphragm allows...Ch. 20 - Prob. 2LTBCh. 20 - Alveoli are ___________. small air sacs at the...Ch. 20 - Prob. 4LTBCh. 20 - Prob. 5LTBCh. 20 - Prob. 6LTBCh. 20 - Prob. 7LTBCh. 20 - Prob. 8LTBCh. 20 - Heart attacks ___________. are typically caused by...Ch. 20 - Prob. 10LTB
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- The pointy, inferior part of the heart is the ___while the ___ is much broader with multiple blood vessels entering and exiting from the region.arrow_forwardThe heart is a muscle and needs blood too. What arteries supply this blood? Superior Vena Cava Pulmonary Aorta O Coronaryarrow_forwardPressure in the ventricle would be lowest during _____. atrial systole ventricular systole ventricular diastole isovolumetric relaxation diastisisarrow_forward
- If the left side of the heart does not pump well enough to send all the blood contained in the ventricle out to the body, blood will back up in the lungs. The resulting condition is called ___. angina pectoris congestive heart failure esophageal varices chronic bronchitisarrow_forwardWhen the lumen of an artery is filled with plaque, cholesterol, or calcium salts, the condition is called ___. aneurysm ecchymosis atherosclerosis arteriosclerosisarrow_forwardWhen heart muscle is suddenly starved of blood so that it dies, this is called ___. fusiform aneurysm angina pectoris saccular aneurysm acute myocardial infarctionarrow_forward
- Which part of the heart is responsible for the muscular contractions that pump blood through it? myocardium endocardium valves pericardiumarrow_forwardPart A- Why do arteries have many more elastic fibers than veins? O They have less pressure during ventricular systole They need to be round in histological cross-section They need to be able to withstand the pressure that arises as blood is pumped from the heart OAll of the above None of the abovearrow_forwardThe heart has three layers the outermost of which is called the ___arrow_forward
- Coronary vessels - these supply the heart with a blood supply of its own. -They can be seen in the long groove running down the ventricles on the ventral side of the heart. not reproduce. B. INTERNAL ANATOMY Personal Locate the following structures: foroven The tricuspid valve located between the right atrium and right ventricle. Why is it named as it is? use What does it do in the heart? The endocardium - this is the tissue that lines the heart. Find the papillary muscles in the left and right ventricles and the taut, chordae tendineae. What is their function? only, d Personel use only, do not rep o 2021 04-11 The bicuspid (mitral) valve - the left atrium and left ventricle.roduce. emayato@grnai.comarrow_forwardBlood in the heart chambers is separated from the myocardium by a thin membrane called the _____.arrow_forwardAorta Arteries Capillaries Veins Vena Cava The blood pressure through the system is highest at the output of the heart and falls as it moves through the system approximately (for a person lying down) as shown in the figure. The drop is largest in the capillaries. Why? Because the viscosity of blood is lower when it's in the capillaries. Because the total cross-sectional area of the capillaries is large. Because each capillary has a small radius. Because the velocity of flow in the capillaries is very low. Because the capillaries are very short.arrow_forward
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