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20 Cards in this Set
- Front
- Back
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fluid, tubes, pump
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three basic components of a circulatory system...
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closed circulatory system
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blood is confined to vessels and is distinct from the interstitial fluid, more efficient at transporting circulatory fluids to tissues and cells.
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cardiovascular system
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Humans and other vertebrates have a closed circulatory system, often called the
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Arteries
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branch into arterioles and carry blood to capillaries
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capillary beds
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Networks of capillaries , the sites of chemical exchange between the blood and interstitial fluid
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Venules
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converge into veins and return blood from capillaries to the heart
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atrium
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Blood enters through
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ventricle
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blood is pumped out through
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left side of the heart
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pumps and receives only oxygen-rich blood
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right side of the heart
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receives and pumps only oxygen-poor blood
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aorta
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provides blood to the heart through the coronary arteries
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superior vena cava
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Blood returns to the heart through the , (blood from head, neck, and forelimbs) and inferior vena cava (blood from trunk and hind limbs)
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Gas exchange
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supplies oxygen for cellular respiration and disposes off carbon dioxide
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Mammalian circulation
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Blood returns to the heart through the superior vena cava (blood from head, neck, and forelimbs) and inferior vena cava (blood from trunk and hind limbs)
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right atrium
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The superior vena cava and inferior vena cava flow into the
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Partial pressure
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is the pressure exerted by a particular gas in a mixture of gases
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Lungs
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are an infolding of the body surface
The circulatory system (open or closed) transports gases between these and the rest of the body, The size and complexity correlate with an animal’s metabolic rate |
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the larynx, trachea, bronchi, bronchioles, and alveoli
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Air inhaled through the nostrils passes through the pharynx via where gas exchange occurs
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vocal cords
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Exhaled air passes over the to create sounds
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surfactants
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Secretions called coat the surface of the alveoli
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