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Visual Essentials of Anatomy & Physiology 1st Edition

Visual Essentials of Anatomy & Physiology (1st Edition)

Book Edition1st Edition
Author(s)Martini, Ober
ISBN9780321780775
PublisherPearson Higher Education
SubjectBiology
Section 12.1: The wall of the heart contains concentric layers of cardiac muscle tissue
Section 12.2: The heart is suspended within pericardial cavity; the boudaries of the internal chambers are visible on the external surface
Section 12.3: The heart has an extensive blood supply
Section 12.4: Internal valves control the direction of blood flow between the heart chambers
Section 12.5: Clinical Module: Damage to the myocardium or heart valves may compromise heart function
Section EOS1: End of Section 1
Section 12.6: The cardiac cycle, which creates pressure gradients that maintain blood flow, is coordinated by specialized cardiac muscle cells
Section 12.7: The ANS innervates the heart, and an ECG can display heart activity
Section 12.8: Adjustments in heart rate and stroke volume regulate cardiac output
Section EOS2: End of Section 2
Section 12.9: Arterial pressure and peripheral resistance determine blood flow and affect capillary exchange
Section 12.10: Cardiovascular regulatory mechanisms respond to changes in blood pressure
Section 12.11: The endocrine responses to low blood pressure and low blood volume are very different from those to high blood pressure and high
Module Review
Section 12.11: The endocrine responses to low blood pressure and low blood volume are very different from those to high blood pressure and high
Module Review
Section 12.11: The endocrine responses to low blood pressure and low blood volume are very different from those to high blood pressure and high
Module Review
Section 12.12: The cardivascular centers make extensive adjustments to cardiac output and blood distribution during exercise
Section 12.13: Clinical Module: An ECG can reveal arythmias
Section EOS3: End of Section 3

Chapter 12, Section 12.1, Module Review, Exercise a

Page 435

Here is a tip:

Different layers of the walls of an organ are composed of different tissues depending on its function.

Explanation

  • The epicardium is the outermost layer of the heart wall and is attached to the myocardium on its inner surface.
  • The myocardium or middle layer is the muscular layer that makes the chambers of the heart.
  • The innermost layer or endocardium is the single layer of epithelial cells that lines the chambers as well as the valves.

Verified Answer

Epicardium, myocardium, and endocardium.

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