Describe how the muscles around the blood vessels can be used to control the pressure in our circulatory system. What would their role be? Explain how it would work
Blood vessels are lined by smooth muscles. When the blood pressure increases then the blood vessels dilate. This helps in reducing the pressure as the lumen of the blood vessel increases this causes the resistance to the flow of blood to decrease.
Now when blood pressure decreases then the blood vessels constrict. This helps in increasing the pressure as the lumen of the blood vessel decrease. As the lumen of the blood vessel decrease then the resistance to the flow of blood increases.
Describe how the muscles around the blood vessels can be used to control the pressure in...
Cardiovascular System: Vessels - Blood Vessels and Hemodynamics – anatomy of blood vessels, capillary exchange, physiology of circulation, control of blood pressure and blood flow, shock and homeostasis, circulatory routes, fetal circulation, general disorders This chapter requires us to understand pressure volume relationships on multiple levels, across the entire circulation. In a paragraph, write about one of these that most intersting or facinating.
describe how the vessels and hormones affect the blood pressure. Include prod and afterload as well as antidiuretuc hormone, aldosterone and the renin-angiotensin-aldesrerone system in your explanation.
describe the blood flow around the circulartory system? what is the oxygen content in the major area of the circulatory system?
1. Describe the relationship between pressure, volume, resistance and flow. How is this similar to blood flow through the heart and vessels? 2. What is intrapulmonary pressure? If it is higher than atmospheric pressure, what happens? What happens if it is lower than atmospheric pressure? Which gas law would you apply to explain this? State the law. 3. What is intrapleural pressure? Why is it important? 4. What would happen if intrapleural pressure became higher than intrapulmonary pressure? What might...
Consider a 4-mm diameter blood vessel and two 2-mm diameter blood vessels. Assuming pressure, viscosity, and vessel length are constant, would the two 2-mm vessels have more, less, or the same amount of fluid flow as the 4-mm diameter blood vessel? Explain using the proper equation, showing your work and using proper units.
Blood Pressure Lab 1. is the name used to describe the sounds of blood pressure heard through the stethoscope. What is considered normal blood pressure? Pre-Hypertension? 2. 3. The appropriate cuff size must be used to ensure accu cuff should encircle at least rate measurement. The bladder within the % of the upper arm. 4. Pressure of the blood pressure cuff should be released at a rate of_mmig pe second. 5. Blood Pressure is the point at which the first...
List and describe all named blood vessels and pertinent structures that the red blood cell will pass through on its trip (arterioles, venules, and capillary beds can be handwaved); it is assumed to start from a small venule feeding directly to the brachial vein. Remember that the trips requires a visit through the pulmonary circuit before and after each of the four steps listed above the apex of the heart is reached through the coronary circulation). 7. An oxygen molecule...
Explain how changes in the physical and anatomic properties of blood vessels as you move from the large arteries to the microcirculation and the venous system affect the pressure, flow velocity and pulse wave b)
1. Explain how each of these systems (sympathetic / parasympathetic) affect each of the following: A. heart rate B. blood pressure C. digestive muscles D. digestive glands E. adrenal medulla F. blood vessels to skeletal muscles G. blood vessels to respiratory system H. blood vessels to digestive organs I. blood vessels to skin.
6a. What do you think is the primary source of ATP for muscles during a marathon? aerobic cellular respiration anaerobic fermentation creatine phosphate 6b. Explain your reasoning. 7a. During a 100 m sprint, creatine phosphate is the most important contributor to ATP production in muscles. Explain why. 7b. Creatine phosphate is less important for longer races. Explain why. 9a. Draw a rectangle around the part of the figure that shows aerobic cellular respiration. 9b. If not enough oxygen is available,...