Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 44, Problem 13TYK
Summary Introduction
To review:
The reason why varicose veins might affect the veins closer to the surface of the leg than deeper leg tissues.
Introduction:
Varicose veins are abnormal, twisted, and dilated blood vessels that are caused by the weakening of the vessel wall. They are elongated, enlarged, and tortuous superficial veins that are present in the lower limbs. It is a progressive disease and is most common in the mid-20s. This phenomenon tends to affect females more than males.
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Students have asked these similar questions
a) List at least five things that a circulatory system does to help the body cells. Which of these is most important?
b) Name some animals with an “open circ system” ; know how it works with some vessels, heart/pumps and hemolympth blood-like fluid
c) what are the general differences between veins, capillaries and arteries?
What do we call very tiny arteries? Very tiny veins?
In bypass surgery, the cardiovascular surgeon will collect a portion of the living saphenous vein from the patient and implant it as a shunt between the same patient's ascending aorta and distal coronary artery. What do you think would happen to the vein tissue after a few weeks of exposing the vein cells to arterial pressure and flow conditions? (minimum 30 words)
Which statement accurately explains why arterial walls are thicker than the walls of veins?
A.
Arteries need to withstand more hydrostatic pressure than do the veins.
B.
More blood flows through the arteries than through the veins.
C.
Arterial blood has more red blood cells than veins do.
D.
The higher oxygen content of arterial blood requires thicker walls.
E.
All of the above answer choices correctly answer the question.
Chapter 44 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 44.1 - What are the three basic features of animal...Ch. 44.1 - Prob. 2SBCh. 44.1 - Prob. 3SBCh. 44.1 - Prob. 4SBCh. 44.2 - Outline the life cycle of an erythrocyte.Ch. 44.2 - Prob. 2SBCh. 44.2 - Prob. 3SBCh. 44.3 - Prob. 1SBCh. 44.3 - Prob. 2SBCh. 44.3 - How do neurogenic and myogenic hearts differ?
Ch. 44.3 - Describe the electrical events that occur during...Ch. 44.4 - Prob. 1SBCh. 44.4 - Prob. 2SBCh. 44.4 - Prob. 3SBCh. 44.5 - Prob. 1SBCh. 44.5 - Prob. 2SBCh. 44.5 - Prob. 3SBCh. 44.6 - Prob. 1SBCh. 44 - Prob. 1TYKCh. 44 - Prob. 2TYKCh. 44 - Prob. 3TYKCh. 44 - A characteristic of blood circulation through or...Ch. 44 - The heartbeat includes: a. the systole when the...Ch. 44 - Keeping the mammalian cardiac cycle balanced...Ch. 44 - Prob. 7TYKCh. 44 - Characteristics of veins and venules are: a. thick...Ch. 44 - Prob. 9TYKCh. 44 - Prob. 10TYKCh. 44 - Prob. 11TYKCh. 44 - Prob. 12TYKCh. 44 - Prob. 13TYKCh. 44 - Prob. 15TYKCh. 44 - Nifedipine is an antihypertension medication that...Ch. 44 - Prob. 2ITDCh. 44 - Nifedipine is an antihypertension medication that...
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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
- Which statement is true? a. Veins have more muscle and elastic fibers than arteries b. Arteries have more muscle and elastic fibers than veins c. Veins carry blood away from the heart d. Arteries carry blood to the heartarrow_forwardWhy do arteries have thick walls of muscle and elastic fibers? a. to give more area for cholesterol to deposit b. strength and ability to expand and contract during heartbeats c. to allow blood to flow in both directionsarrow_forwardWhich of the choices below best describes the systemic circulation of blood?a. The flow of blood into the right atrium and eventually out of the left ventricle.b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus.d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.arrow_forward
- Compare the path of blood in animals with a one-circuitcirculatory pathway vs. a two-circuit pathway.arrow_forwardSummarize in one sentence the relation between blood flow and arterial radius.arrow_forwardHow do arteries differ from veins?a. Arteries have thicker wall layers to accommodate the changes in pressure from the heart.b. Arteries carry blood.c. Arteries have thinner wall layers and valves and move blood by the action of skeletal muscle.d. Arteries are thin walled and are used for gas exchange.arrow_forward
- Compare and contrast the simple and alternative pathways of blood vessels.arrow_forwardusing the picture What is different about the circulation between the heart and lungs and the circulation throughout the rest of the body?arrow_forwardA pharmaceutical company develops an artificial red blood cell that is very effective at transporting oxygen but unable to transport carbon dioxide. Explain what would happen in the blood vessels if this substance were used in a blood transfusion. How would this affect the recipient (Assume the transfusion has no effect on the level of plasma in the blood)?arrow_forward
- Many objects designed by engineers have “circulatory systems” of one type or another. Describe at least three or four examples. Why do engineers sometimes include systems of flowing fluids in objects they design? We often hear it said that animal systems can teach us how to design engineered systems. If you were a biologist teaching a group of engineers about the lessons of animal circulatory systems, what principles would you emphasize?arrow_forwardHow might you connect "arteries," "capillaries," "veins," and "interstitial fluid" to the concept map? Select all correct statements. Check All That Apply Blood vessels include arteries, capillaries, and veins. Blood vessels include arteries, capillaries, and veins. Arteries have more smooth muscle than veins. Arteries have more smooth muscle than veins. Veins have slower blood velocity than capillaries. Veins have slower blood velocity than capillaries. Capillaries exchange dissolved substances with interstitial fluids. Capillaries exchange dissolved substances with interstitial fluids. The heart pumps interstitial fluids.arrow_forwardWhich of the following best describes the primary role of resistance vessels? Group of answer choices a.Providing nutrient supply to the walls of larger vessels b. They regulate arterial blood pressure and blood flow within the organs. c. Ensuring blood storage during periods of low cardiac output d. Directing blood flow to specific organs based on demandarrow_forward
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