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Published byBernice Armstrong Modified over 9 years ago
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Cardiovascular System
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Vocabulary: 324 1. brady- 1. brady- 2. diastol- 2. diastol- 3. systol- 3. systol- 4. tachy- 4. tachy- 5. ventr- 5. ventr- 6. embol- 6. embol-
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Functions/Parts 1. Exchange particles through blood flow 1. Exchange particles through blood flow –A. Nutrients and/or electrolytes –B. Gases –C. Waste Products
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Functions/Parts 2. Pulmonary Circuit 2. Pulmonary Circuit
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3. Systemic Circuit 3. Systemic Circuit
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Vessels CLOSED CIRCUIT!!!
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Pathway HAacvVHHAacvVHHAacvVHHAacvVH
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Arteries and Arterioles A. Strong, elastic vessels made of: A. Strong, elastic vessels made of: –Endothelium –Smooth Muscle
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B. Smooth muscle contraction B. Smooth muscle contraction –Stimulus to the muscle can make two things happen.
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1. Vasoconstriction: 1. Vasoconstriction: Muscles Contract Muscles Contract Vessel Diameter decreases Vessel Diameter decreases
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2. Vasodilation 2. Vasodilation Muscles Relax Muscles Relax Vessel Diameter increases Vessel Diameter increases
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Capillaries
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Capillaries Smallest diameter blood vessels, made up of simple squamos endothelium Smallest diameter blood vessels, made up of simple squamos endothelium
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PulmonarySystemic Diffuses out ?? Diffuses into ??
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PulmonarySystemic Diffuses out CO 2 O 2 Nutrients Diffuses into O2O2O2O2 CO 2, Waste Pro.
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Veins and Venules Return blood from capillaries to the atria (heart) Return blood from capillaries to the atria (heart)
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Veins and Venules A. Thinner walls with less developed muscle A. Thinner walls with less developed muscle
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Veins and Venules B. VALVES B. VALVES –One-way –Prevent back flow
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