Overview of the Cardiovascular System
Overview of the Cardiovascular System 4351
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This 1 page Class Notes was uploaded by Kristen Jones on Monday September 26, 2016. The Class Notes belongs to 4351 at University of Central Arkansas taught by Dr. Martin in Fall 2016. Since its upload, it has received 133 views. For similar materials see Pharmacology in Biology at University of Central Arkansas.
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Date Created: 09/26/16
BP= CO x SVR The vessel effect on BP is greater than the heart’s effect on blood pressure CO=SV x HR At rest 70ml of blood is normal for volume and 72 bpm are normal Blood volume effects SV Contractility is the force of the pump SVR is the resistance that is offered by systemic vessels It goes from arterial to capillary to venous. Arteriol is high pressure withstanding high resistance Venous is low pressure withstanding low resistance SVR determined by the lumen diameter of the vessel Vasoconstrictors increase SVR Vasodilators decrease SVR HTN Consistently elevated blood pressure Blood vessels- o Can undergo drastic changes Heart o Increased workload, its pumping against a higher pressure- wall starts to compensate- gets thicker- volume of the chamber is then reduced- overall it makes the heart have to work harder Kidneys o Damage because of the pounding Can affect other organs too, which can cause hemorrhagic stroke, eye damage, ect.
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