About This Chapter
The Human Heart - Chapter Summary and Learning Objectives
This chapter's video lessons can help you identify the heart anatomy responsible for regulating the flow of blood through each of its atria and ventricles. You'll also get an introduction to some of the conditions that result from heart malfunction as well as the methods used to diagnose them. Use this chapter to learn about the following:
- Heart blood flow and muscle tissue
- Phases in the cardiac cycle
- Uses of an electrocardiogram
- Factors affecting cardiac output
- Heart conditions and diseases
|Anatomy of the Heart: Blood Flow and Parts||Get an overview of the heart valves and chambers responsible for pumping blood through the body.|
|Types of Muscle Tissue: Skeletal, Cardiac & Smooth||Differentiate cardiac muscle from smooth and skeletal muscle.|
|Heartbeat and Heart Contraction Coordination||Find out how the intrinsic conduction system's SA and SV nodes regulate heartbeat.|
|The Cardiac Cycle: Phases, Explanation & Terms||Learn key terms associated with the diastole and systole phases of the cardiac cycle.|
|Electrocardiogram (ECG): Definition & Wave Types||Discover the heart activity detected by an electrocardiogram's P, QRS and T waves.|
|Arrhythmia of the Heart: Terms, Definition & ECG Detection||Study the types of irregular heartbeats that can be identified with an ECG.|
|Types of Heart Conditions and Diseases||Identify the causes of heart conditions and diseases, including atherosclerosis, coronary heart disease and congestive heart failure.|
|Heart Rate, Cardiac Output & Stroke Volume||Learn how these three terms are used to describe the quantity of blood the heart is pumping through the body.|
|Regulation of Heart Rate and Stroke Volume||Discover factors affecting the heart's stroke volume and heart rate.|
1. Anatomy of the Heart: Blood Flow and Parts
In this lesson, you will take a look inside the heart and identify the chambers and one-way valves that make up this vital organ. You will also follow along as we trace the flow of blood through the heart chambers.
2. Types of Muscle Tissue: Skeletal, Cardiac & Smooth
Have you ever wondered why muscle has different names such as striated, smooth, voluntary, or involuntary? This lesson describes the different types of muscle tissue based on their histology, mechanism of contraction, and regulation.
3. Heartbeat and Heart Contraction Coordination
In this lesson you will learn about your heart's very own regulatory system, the intrinsic conduction system, and how it sets the pace for a normal, healthy heartbeat. You will discover that your heart moves to its own beat thanks to the natural pacemaker of the heart called the SA node.
4. The Cardiac Cycle: Phases, Explanation & Terms
In this lesson, you will learn what happens during each heartbeat, or cardiac cycle. You will also learn that the heartbeat involves periods of relaxation and contraction, known as diastole and systole, respectively.
5. Electrocardiogram (ECG): Definition & Wave Types
Do you know how problems in the heart are detected? In this lesson, you will learn how to read an electrocardiogram (ECG) and discover what is happening in the heart during the P, QRS, and T waves.
6. Arrhythmia of the Heart: Terms, Definition & ECG Detection
An electrocardiogram, or ECG, can be used to detect irregular heartbeats or arrhythmias. In this lesson, you will learn about arrhythmias detected by ECG, including bradycardia, tachycardia, fibrillation, and heart block.
7. Types of Heart Conditions and Diseases
Your heart muscle receives a rich blood supply from the coronary arteries. If the coronary arteries become blocked, it can result in coronary heart disease, angina, heart attack or congestive heart failure. Learn how these conditions get started.
8. Heart Rate, Cardiac Output & Stroke Volume
The amount of blood your heart pumps is constantly changing to meet the needs of your body. In this lesson, you will learn how the heart maintains an adequate cardiac output, heart rate and stroke volume.
9. Regulation of Heart Rate and Stroke Volume
The amount of blood being pumped through your body changes constantly due to the demands of daily life. In this lesson, you will learn how your body adjusts the heart rate and stroke volume to increase or decrease blood flow.
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Other chapters within the UExcel Anatomy and Physiology II: Study Guide & Test Prep course
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- The Circulatory System
- Cardiovascular Physiology
- The Lymphatic System
- The Immune System
- Antigens, Antibodies and T-Cell Receptors
- Respiratory System
- Digestive System
- Urinary System
- Components of Urine
- Fluid & Electrolyte Balance
- Acid-Base Balance
- Anatomy & Physiology of the Male Reproductive System
- Anatomy & Physiology of the Female Reproductive System
- Prenatal & Neonatal Development
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