'Ventricles contract' diaporamas de présentation

Cardiovascular System Part 2

Cardiovascular System Part 2. Properties of Vascular System. Vascular System = a network of vessels that transports blood throughout the body 4 Main Categories: Arteries ? thick, strong, elastic vessels Carry blood away from the heart to different organs

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Test Review

Test Review. Heart. Pulmonary trunk. Fibrous pericardium. Parietal layer of serous pericardium. Pericardium. Pericardial cavity. Myocardium. Epicardium (visceral layer of serous pericardium). Heart wall. Myocardium. Endocardium. Heart chamber. Figure 18.2.

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Heart & Circulation

Heart & Circulation. Circulation. The human circulatory system consists of 96,000 km of blood vessels that transport blood to each cell in the body. Your entire blood volume (about 5L) is pumped every minute. . The circulatory system performs the following functions:.

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Electrical Conduction in Myocardial Cells

Electrical Conduction in Myocardial Cells . Figure 14-17. 1. 1. SA node. AV node. 2. 1. THE CONDUCTING SYSTEM OF THE HEART. SA node depolarizes. 2. Electrical activity goes rapidly to AV node via internodal pathways. SA node. 3. Internodal pathways. 3. Depolarization spreads

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Heart Anatomy

Heart Anatomy. Approximately the size of a fist Location In the mediastinum between second rib and fifth intercostal space On the superior surface of diaphragm Two-thirds to the left of the midsternal line Enclosed in pericardium, a double-walled sac. PLAY. Animation: Rotatable heart.

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This lesson will increase your knowledge of concepts covered in the following TEKS for biology:

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The Cardiovascular System

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Functions of the Blood Vessels/Chapter 19

Functions of the Blood Vessels/Chapter 19. Joe Pistack MS/ED. Blood Vessels. Functions: Act as a delivery system Regulate blood pressure Engage in the exchange of nutrients and waste between the capillaries and cells Redistribute blood in response to changing body needs

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The Cardiovascular System: The Heart

The Cardiovascular System: The Heart. Heart pumps over 1 million gallons per year Over 60,000 miles of blood vessels. Heart Location. Anterior surface of heart. Heart is located in the mediastinum area from the sternum to the vertebral column and between the lungs. Heart Orientation.

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Chapter 13

Chapter 13. Heart Rate and Blood Pressure. The Cardiac Cycle. Each Heartbeat is called a Cardiac Cycle Step 1: the two atria contract at the same time This pushes blood into the ventricles Step 2: the two ventricles contract at the same time

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The Heart and Lungs at Work Chapter 6

The Heart and Lungs at Work Chapter 6. The Primary Roles of the Cardiovascular System. 1. to transport oxygen from the lungs to the tissues 2. to transport carbon dioxide from the tissues to the lungs 3. to transport nutrients from the digestive system to other areas in the body

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Cardiovascular system

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Topic 6.2: The Transport System

Topic 6.2: The Transport System. Assessment Statement. 6.2.1 Draw and label a diagram of the heart showing the four chambers, associated blood vessels, valves, and the route of blood through the heart 6.2.2 State that the coronary arteries supply heart muscle with oxygen and nutrients

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The Heart: Cardiac Cycle

The Heart: Cardiac Cycle. Events of one complete heartbeat Both atria and ventricles contract and relax Takes: .8 seconds to complete In one minute: completed 50-80 cardiac cycles Atria contract simultaneously Atria relax, then ventricles contract

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Cardiac Cycle

Cardiac Cycle. The two atria contract at the same time, then they relax while the two ventricles simultaneously contract. The contraction phase of the ventricle chambers is called systole . The relaxation phase is called diastole .

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Heart activity

Heart activity. Changes in pressure and volume during the heart cycle. The heart cycle. Period from the beginning of one heart beat to the beginning of the next heart beat Two phases: Diastole, period of cardiac muscle relaxation Systole, period of cardiac muscle contraction

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Heart Web Quest PE 12 Mr. Lang

Heart Web Quest PE 12 Mr. Lang. Grade 12 PE Mr. Lang Heart Assignment. Identify the chambers of the heart, valves, aorta, pulmonary artery, pulmonary vein, superior and inferior vena cava on the diagram included .

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The Cardiac Cycle

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The Heart

The Heart . Vertebrate Heart Structure. Vena cava Right atrium Right ventricle Pulmonary artery Pulmonary vein Left atrium Left ventricle Aorta. Normal hearts LV LV and AO RV. Control of the Heart. Myogenic Beat Sinoatrial node

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