Understanding Cardiovascular Vessels: Arteries, Veins, &
School
Grand Valley State University**We aren't endorsed by this school
Course
BMS 251
Subject
Biology
Date
Dec 11, 2024
Pages
9
Uploaded by ColonelWalrus4092
Chapter 20 Cardiovascular Vessels OutlineDefinitions:Artery –Vein –Capillary –Tunic –Lumen –As arteries extend away from the heart they get progressivelysmaller/larger. Arteriestunics getmore/lessextensive as they extend away from the heart.Which type of artery has the greatest amount of elastin fibers in their tunics?Elastic arterymuscular arteryarterioleAs veins return to the heart they get progressivelysmaller/larger.1
Chapter 20 Cardiovascular Vessels OutlineWhat feature do veins have that arteries do not have?Types of CapillariesWhat do capillaries connect? Why are capillaries so important for the function of tissues andcells?Continuous Capillary -Materials that pass through vessel wall:Fenestrated Capillary -Materials that pass through vessel wall:Sinusoid Capillary -Materials that pass through vessel wall:2
Chapter 20 Cardiovascular Vessels OutlineCapillary Bed -OpenStax Anatomy and Physiology 2e Figure 20.63How do veins act as blood reservoirs?
Chapter 20 Cardiovascular Vessels Outline20.1e Pathways of Blood VesselsDefine:1.Simple pathway –Ex.2.End artery –Ex.3.Anastomosis –Arterial Ex.Venous Ex.4.Functional end artery –Ex.5.Portal System –Ex.20.3 Capillary ExchangeFunction of capillaries________________________________________________________________________________________________________________________________________________________4
Chapter 20 Cardiovascular Vessels OutlineTwo types of substance movement between capillaries and interstitial space1.Diffusion –Ex.2.Vesicular transport –Ex.Define:1.Pressure –2.Osmotic pressure –3.Hydrostatic pressure –4.Colloid –5.Bulk flow –5
Chapter 20 Cardiovascular Vessels Outline6.Filtration –7.Reabsorption –*Where does bulk flow happen? ________________________________________________3 pressures in bulk flowWhich pressure has to be the greatest to facilitate filtration?20.3c Net Filtration PressureDefine net filtration pressure:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________6
Chapter 20 Cardiovascular Vessels OutlineDefine Starling’s Law as it applies to physiology: _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________What does a positive net filtration pressure mean in terms of filtration and reabsorption at thecapillary bed?What does a negative net filtration pressure mean in terms of filtration and reabsorption at thecapillary bed?What systemic pressure is responsible for blood hydrostatic pressure?What happens at the capillary bed if blood pressure decreases significantly?What are the cell/tissue ramifications of a lack of filtration at the capillary bed? (Hint: what isthe function of the capillary?)7
Chapter 20 Cardiovascular Vessels Outline20.3d Role of the Lymphatic SystemWhat role does the lymphatic system play in filtration and reabsorption at the capillary bed?What do you suspect if this vessel-like system is damaged?20.4 Local Blood FlowLocal blood flow =Factors that affect local blood flow:1._______________ – formation of new blood vessels2.3.Autoregulation –8
Chapter 20 Cardiovascular Vessels Outline4.9