1. DHO Unit 6:8 Anatomy and Physiology Circulatory System

2. 6:8 Circulatory System AKA the cardiovascular system
Consists of heart, blood vessels, and blood
Transports oxygen and nutrients to body cells
Transports carbon dioxide and metabolic materials away from the body cells
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Heart
Muscular, hollow organ functions as pump
Size of a closed fist
Location
Slightly to the left of the sternum
Between the 4th and 5th intercostal
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4. Heart Exterior and Interior
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Anatomy
Heart chambers
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle
Septum
Valves
Tricuspid
Pulmonary
Mitral
Aortic
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Layers of the Heart
Endocardium
Innermost Layer
Myocardium
Thickest Layer
Pericardium
Membrane that covers the heart
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Blood Vessels
Blood carried throughout body in blood vessels
Arteries
Capillaries
Veins
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8. Blood Vessel Disection
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9. Blood Flow Through the Body (Systemic Circulation)
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10. Blood Flow Normal Blood Flow Through the Heart
Double Click this link to go to the National Institute of Health’s page to see how normal blood flow looks and sounds ….
Be patient! Give it a second to load.
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Taking Your Pulse
When your heart pumps blood through your arteries, it creates a pulse that you can feel on the arteries close to the skin's surface. For example, you can feel the pulse on the artery inside of your wrist, below your thumb.
You can count how many times your heart beats by taking your pulse. You will need a watch with a second hand (or look at the clocks above each door!).
To find your pulse, gently place your index and middle fingers on the artery located on the inner wrist of either arm, below your thumb. You should feel a pulsing or tapping against your fingers.
Watch the second hand and count the number of pulses you feel in 30 seconds. Double that number to find out your heart rate or pulse for 1 minute.
The usual resting pulse for an adult is 60 to 100 beats per minute. To find your resting pulse, count your pulse after you have been sitting or resting quietly for at least 10 minutes.
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Blood
Average adult: 4-6 quarts
Blood circulates continuously throughout the body
Transports many substances
Plasma
Blood cells
Erythrocytes or red blood cells
Leukocytes or white blood cells
Thrombocytes
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13. Diseases and Abnormal Conditions Arteriosclerosis and Atherosclerosis
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14. More Diseases and Abnormal Conditions
Anemia
Aneurysm
Arrhythmias
Congestive heart failure (CHF)
Embolus Hemophilia
Hypertension
Leukemia
Myocardial infarction – heart attack
Phlebitis
Varicose veins
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6:9 Lymphatic System
The lymphatic system is part of the circulatory system, comprising a network of lymphatic vessels that carry a clear fluid called lymph (from Latin lympha meaning water) directionally towards the heart.
Removes waste and excess fluid from the tissues
Lymph
Lymphatic vessels
Lymph nodes
Lymphatic ducts
Lymph tissue
Spleen
Thymus
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16. Lymphatic and Venous Systems Working Together
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17. Diseases and Abnormal Conditions
Adenitis
Hodgkin’s disease
Lymphangitis
Splenomegaly
Tonsillitis
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