Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia. Introduction: The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

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Answer 1

Question

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

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Answer 2

Question

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

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Answer 3

Question

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

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Answer 4

Question

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

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Answer 5

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

Answer 6

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

Answer 7

Chapter 20.2, Problem 15AYLO

Summary Introduction

To discuss:

Short- and long- term mechanisms of the local control of blood flow; examples of the vasoactive chemicals and how they can cause reactive hyperemia.

Introduction:

The narrowing of the vessel is called vasoconstriction, and the widening of the vessel is called vasodilation. These are the two ways to control the peripheral resistance. The widening of the vessel occurs as a result of muscular effect, and narrowing occurs as a result of the contraction of smooth muscle of the tunica media. The widening of the vessel in vasodilation is by muscular passivity rather than muscular effort. The smooth muscles get relaxed, and the blood pressure allows the vessel to expand. The vasoconstriction and vasodilation together is called as vasomotion. In the vasomotor center of the brain, the vasomotion is controlled by the nucleus of the medulla oblongata.

Answer 8

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Answer 11

Ch. 20.1 - Prob. 1BYGO Ch. 20.1 - Prob. 2BYGO Ch. 20.1 - Prob. 3BYGO Ch. 20.1 - Prob. 4BYGO Ch. 20.1 - Prob. 5BYGO Ch. 20.1 - Prob. 6BYGO Ch. 20.1 - Definitions of arteries, veins, and capillaries...Ch. 20.1 - Prob. 2AYLO Ch. 20.1 - Prob. 3AYLO Ch. 20.1 - Prob. 4AYLO

Solution Summary: The author describes the short- and long-term mechanisms of the local control of blood flow and how they can cause reactive hyperemia.

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