Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The pulmonary circuit delivers blood from the right side of the heart to the lungs to become oxygenated.
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Ch. 18 The Cardiovascular System II: The Blood Vessels
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook
Chapter 18, Problem 2
Locations where vessels connect via collateral vessels are known as:
a. Thoroughfare channels
b. Metarterioles
c. Anastomoses
d. Venules
Verified step by step guidance1
Understand the key terms in the question: Collateral vessels refer to alternative pathways for blood flow, which are formed when vessels connect to bypass blockages or provide additional circulation.
Review the definitions of the options provided: Thoroughfare channels are direct pathways through capillary beds, metarterioles are small vessels that connect arterioles to capillaries, anastomoses are connections between blood vessels allowing for collateral circulation, and venules are small veins that collect blood from capillaries.
Focus on the concept of collateral circulation: Collateral vessels are specifically associated with anastomoses, which are connections between arteries, veins, or other vessels that allow blood to bypass blockages or provide redundancy in circulation.
Eliminate incorrect options: Thoroughfare channels and metarterioles are part of the microcirculation system but do not serve as collateral vessels. Venules are involved in returning blood to the heart but are not sites of collateral connections.
Conclude that the correct term for locations where vessels connect via collateral vessels is anastomoses, based on the definition and function of these connections.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Collateral Circulation
Collateral circulation refers to the network of small blood vessels that can develop to provide alternative pathways for blood flow when the main vessels are obstructed. This is crucial in maintaining adequate blood supply to tissues, especially in cases of vascular disease or injury.
Recommended video:
7:24
Anastomoses Form Collateral Channels
Anastomoses
Anastomoses are connections between two blood vessels, allowing for the diversion of blood flow. They can occur between arteries, veins, or a combination of both, and play a vital role in ensuring that blood supply remains consistent even if one pathway is compromised.
Recommended video:
6:50Types of Anastomoses
Metarterioles
Metarterioles are small blood vessels that serve as a transitional form between arterioles and capillaries. They regulate blood flow into capillary beds and can also connect directly to venules, facilitating the exchange of nutrients and waste products in tissues.
Recommended video:
6:52Structure of Mesenteric Capillary Beds
Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Muscular arteries control blood flow at the tissue level.
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Textbook Question
A birth defect called transposition of great vessels results in the pulmonary trunk emanating from the left ventricle and the aorta stemming from the right ventricle.
Predict the potential effects of this birth defect.
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Textbook Question
Collagen vascular diseases weaken the collagen in the tunica externa of blood vessels. Predict the effects of such a disease.
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Textbook Question
Explain why a severed artery spurts blood, whereas a severed vein merely leaks blood.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Veins have smaller lumens, more elastic fibers, and more smooth muscle than arteries.
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