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Ch. 18 The Cardiovascular System II: The Blood Vessels
Amerman- Human Anatomy & Physiology 3e
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814당신이 사용하는 게 아니라요?교과서 변경
18장, 문제 2

Locations where vessels connect via collateral vessels are known as:
a. Thoroughfare channels
b. Metarterioles
c. Anastomoses
d. Venules

검증된 단계별 안내
1
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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주요 개념

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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.
추천 영상:
가이드 코스
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.
추천 영상:
가이드 코스
6:50
Types 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.
추천 영상:
가이드 코스
6:52
Structure of Mesenteric Capillary Beds