Segments in this Video

The Circulatory System: Anatomy and Physiology: Introduction (00:31)


The circulatory system consists of four parts: the heart, the blood vessels, blood, and the lymph vessels. All four work collaboratively to perform two tasks: deliver oxygen and nutrients to the rest of the body and to remove waste products.

The Heart (02:53)

The heart is about the size of a fist and made up of four chambers: left atrium, right atrium, left ventricle, and right ventricle. The average adult heart pumps approximately 7,200 liters per day. A heartbeat is a coordinated contraction of the four chambers of the heart that occurs 100,000 times per day.

The Conduction System (03:45)

The heart contains two types of cells: electrical and myocardial cells. The cardiac conduction system includes the sinoatrial, the atrioventricular node, the bundle of His, left and right bundle branches, and the Purkinje fibers. An electrocardiogram (or ECG) measures the electric impulses of the heart.

Blood Vessels (02:26)

Arteries, veins, and capillaries force oxygenated blood and nutrients into cells and return Carbon Dioxide (CO2) and waste products to the heart. The aorta is the largest of the arteries and its blood is bright red. Blood Vessels are elastic and constrict to help move blood throughout the body— valves prevent backflow.

Blood (03:38)

Blood consists of four components: plasma, red blood cells, white blood cells, and platelets. Plasma carries not only the other three components, but also nutrients, proteins, electrolytes, hormones, respiratory gasses, and fibrinogen. Erythrocytes make blood red and can each carry a billion oxygen molecules.

Lymph Vessels (02:00)

The lymph system conserves plasma fluids and proteins that leak into tissues, absorbs lipids from the intestinal track, and contributes to the body's immune system. Lymph fluid is comprised of interstitial fluid, fat absorbed from the small intestine, and lymphocytes. Lymph nodes clean the lymph fluid.

Credits: The Circulatory System: Anatomy and Physiology (00:16)

Credits: The Circulatory System: Anatomy and Physiology

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The Circulatory System: Anatomy and Physiology

Part of the Series : Anatomy and Physiology
DVD (Chaptered) Price: $299.00
DVD + 3-Year Streaming Price: $448.50
3-Year Streaming Price: $299.00



Looking at the components of the circulator system, this video discusses the route of blood circulation, the components of the cardiac conduction system, the path of a cardiac impulse through the heart, the types of blood vessels, and the main components of blood and lymph.

Length: 17 minutes

Item#: BVL120725

ISBN: 978-1-63521-753-7

Copyright date: ©2013

Closed Captioned

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