Cardiovascular System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What materials are transported by the cardiovascular system? | show 🗑
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| show | Oxygen goes from the lungs to all cells.Nutrients and water go from the intestinal tract to all cells.
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| Materials moved from cell to cell. | show 🗑
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| Materials leaving the body. | show 🗑
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| Describe the general route of blood flow through the heart and body. | show 🗑
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| Pulmonary circulation: | show 🗑
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| Systemic Circulation | show 🗑
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| What is the right side of the heart responsible for? | show 🗑
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| What does the left side of the heart do? | show 🗑
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| show | Cell junctions of interdigitated membranes. Desmosomes: are strong connections that tie adjacent cells together,allowing force reated in one cel to be transferred to the adjacent cell.Gap junctions: electrically connect cardiac muscle cells to 1 another
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| How do they aid cardiac muscle contraction? | show 🗑
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| show | Autorhythmic and contractile.
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| What are Autorhythmic cells? | show 🗑
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| What are "If channels? | show 🗑
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| Describe how an Autorhythmic cell is depolarized. | show 🗑
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| show | When the Ca2+ channels close at the peak of the Action Potential, K+ channels slowly have opened. The Reolarization phase of the Autorhythmic Action Potential is due to the resultant efflux of K+
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| show | When there is a lenthening to the AP caused by Ca2+ entry.
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| Describe how a Contractile cell is depolarized. | show 🗑
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| Describe how a Contractile cell repolarizes. | show 🗑
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| Describe the roles of the Sympathetic and Parasympathetic Nervous systems in modulating contractile force and heart rate. | show 🗑
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| show | Teh simples method to increase the heart rate is to decrease parasympathetic actions. As Parasympathetic influence is withdrawn form teh Autorhymic cells they resume their intrinsic rate of depolarization and the heart rate increases to 90-100 bpm
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| How is the heart rate influenced by the Sympathetic Nervous System? | show 🗑
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| What part of the brain is Cardiovascular control located? | show 🗑
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| How is Cardiovascular control influenced by the sympathetic nervous system? | show 🗑
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| How is Cardiovascular control influenced by the parasympathetice nervous system? | show 🗑
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Created by:
lavy1318
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