WGU - D313 - Anatomy and Physiology 2 - Cardiovascular System - Lesson 2 Exam Guide With Complete Questions And Answers.

Blood Vessels - correct answer the components of the circulatory system that transports blood throughout the human body Capillaries - correct answer the smallest blood vessels in the body, connecting the smallest arteries to the smallest veins Venules - correct answer a small blood vessel in the microcirculation that allows deoxygenated blood to return from capillary beds to larger blood vessels called veins Conducting Arteries - correct answer large, conducting blood from the heart to muscular arteries Elastic Fibers - correct answer the connective tissue fiber that is yellowish in color, as opposed to the collagen fiber that is whitish Blood Pressure - correct answer pressure exerted by blood on the vessel walls Mechanical Energy - correct answer the total amount of kinetic energy and potential energy of an object that is used to do a specific work Kinetic Energy - correct answer a form of energy that an object or a particle has by reason of its motion Recoil - correct answer the reverse thrust generated due to high pressure of blood Distributing Arteries - correct answer medium-sized arteries that draw blood from an elastic artery and branch into resistance vessels Smooth Muscle - correct answer involuntary muscles that do no have striations Vasoconstriction - correct answer reduction in the diameter of blood vessel Vasodilation - correct answer increase in the diameter in blood vessel Resistance Vessels - correct answer blood vessel with a small diameter Metarterioles - correct answer short micro vessels Vascular Resistance - correct answer resistance to the flow of blood through the vessels Microcirculation - correct answer circulation of blood in smallest blood vessels Tunica Media - correct answer middle coat of blood vessel Tunica Externa - correct answer outermost layer of blood vessel Exchange Vessel - correct answer another name for capillaries Valves - correct answer structures that prevent backflow of blood Precapillary Sphincter - correct answer band of contractile cells Endothelial Cells - correct answer the primary type that contacts blood and are responsible for hemostasis and blood fluidity by preventing platelet aggregation and thrombosis Interstitial Fluid - correct answer fluid that fills up the space between cells Diffusion - correct answer movement of substances from high concentrations to low concentration Bulk Flow - correct answer movement of a large number of ions, molecules, or particles together, from an area of high pressure to low pressure Transytosis - correct answer movement of large molecules across the cell's interior Intercellular Cleft - correct answer junction or gap that helps in movement of substances between cells Fenestrations - correct answer small openings in the vessel walls Blood Brain Barrier - correct answer network of blood vessels and tissues that prevent the entry of harmful substances into the brain Pressure Difference - correct answer difference in pressure between two areas Reabsorption - correct answer the bulk flow of solutes from interstitial fluid into the blood Filtration - correct answer the bulk flow of solutes from the blood into interstitial fluid Lipid-Insoluble Molecules - correct answer molecules insoluble in lipids Endocytosis - correct answer the process by which cells take in substances from outside of the cell by engulfing them in a vesicle Exocytosis - correct answer the transport and fusion of secretory vesicles with the plasma membrane and the extracellular space Concentration Gradient - correct answer the gradual change in the concentration of solutes in a solution as a function of distance through a solution Trans-Membrane Proteins - correct answer a type of integral membrane protein