Removing the plasma component of the blood would increase its viscosity. Describe how this increase in blood viscosity w...
Removing the plasma component of the blood would increase its viscosity. Describe how this increase in blood viscosity would affect the blood flow rate of the giraffe and hence the arterial pressure. What consequence would this have on the giraffe’s cardiovascular system? No more than 150 words. [2 marks].
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Removing the plasma component of the blood would increase its viscosity. Describe how this increase in blood viscosity w...
Question 3 Pulse wave velocity is used to measure the speed of blood as it moves...
Question 3 Pulse wave velocity is used to measure the speed of blood as it moves through the arterial system. (i) What evidence is there that blood moves through the arterial system in the form of a wave? (10 marks] How does the pressure and flow rate change as the blood moves though the system? In you answer, describe how reflections of the initial pulse wave affect the following wave travelling behind it. (10 marks)
In hemodynamics, blood flow through the cardiovascular system can be modeled as an electric circuit in...
In hemodynamics, blood flow through the cardiovascular system
can be modeled as an electric circuit in which the blood serves as
electricity, the blood vessels as resistive wires, and the heart as
a battery (see Figure 1).
Figure 1 Cardiovascular circuit model
Ohm’s law states that the voltage drop ΔV across each element,
the current I flowing through it, and its electrical
resistance R are related by ΔV = IR. In a blood vessel, pressure
difference between one vessel and...
21.3 HEMODYNAMICS: FACTORS AFFECTING BLOOD FLOw 815 proteins in plasma. The higher the blood's viscoily.the higher the resistance. Any condition that increases the visoityo ch as dehydration...
21.3 HEMODYNAMICS: FACTORS AFFECTING BLOOD FLOw 815 proteins in plasma. The higher the blood's viscoily.the higher the resistance. Any condition that increases the visoityo ch as dehydration or polycythemia (an onosual -A hlood cellis), thus increases blood pressun blood presssure has dropped to about in blood cells, dac to a whose weight is 160 pounds has a total length of blood vessels equal to 70,000 miles. If he ains 1 pound of fat, his fat tissue will grow an extra...
QUESTION 12 Local control of arteriolar resistance leads to an increase in blood flow to a...
QUESTION 12 Local control of arteriolar resistance leads to an increase in blood flow to a tissue when oxygen level increases. H+ level decreases. carbon dioxide level increases. pH increases. 2 points (Extra Credit) QUESTION 13 Which of the following is/are correct for arteries but NOT veins? carry low-oxygen blood act as a volume reservoir have low blood pressure store pressure generated by the heart 2 points QUESTION 14 Mean arterial pressure is determined by total blood volume....
Chapter 23: Understanding the blood supply to the heart is the first step in understanding this system. Describe this pr...
Chapter 23: Understanding the blood supply to the heart is the first step in understanding this system. Describe this process, including blood flow through the heart and the chambers and valves. If you have a great way to help your classmates remember the blood flow patterns, share that information here! A person who is hemorrhaging has a rapid heart rate. Why? Will the increase in heart rate help with the condition? Chapter 24: Find a picture of peripheral vascular disease...
The blood pressure at your heart is approximately 100 mm of Hg. As blood is pumped...
The blood pressure at your heart is approximately 100 mm of Hg. As blood is pumped from the left ventricle of your heart, it flows through the aorta, a single large blood vessel with a diameter of about 2.5 cm. The speed of blood flow in the aorta is about 60 cm/s. Any change in pressure as blood flows in the aorta is due to the change in height: the vessel is large enough that viscous drag is not a...
41. How would an increase in blood CO2 levels effect respiratory rate? a. It would cause...
41. How would an increase in blood CO2 levels effect respiratory rate? a. It would cause an increase in respiratory rate b. It would cause a decrease in respiratory rate 42. If arterial blood contain 98% oxyhemoglobin saturation and venous blood contains 60% oxyhemoglobin saturation, what can you conclude? a. There is increased loading of oxygen at the lung b. There is increased unloading at the tissues c. The person is resting 43. Which of the following causes water reabsorption...
BIOL 1307.001 GENERAL BIOLOGY II Homework no. 7. Blood and Immune System Blood. For veins, (C)...
BIOL 1307.001 GENERAL BIOLOGY II Homework no. 7. Blood and Immune System Blood. For veins, (C) if to veins fach description below, write in the blank (A) if the description best applies to arteries. (V) ( capillaries, (R) red blood cells, (W) white blood cells, (P) platelets, or (B) blood plasma. 1. back-flow valves carries dissolved carbon dioxide (CO2) and waste products for removal 3. carry blood away from heart 4. carry blood toward heart 5. cells that carry oxygen...
_____membranes proteins are associated with the bilayer through interactions with other membrane component on the surface...
_____membranes proteins are associated with the bilayer through interactions with other membrane component on the surface of the membrane. Net movement of particles from a region where they are more concentrated to a region where they are law concentrated is called Diffusion of water through a selectively permeable membrane down its own concentration gradient It called A solution with an equivalent concentration of water and hence the tame osmotic pressure as the fluid inside the cell is said to be...
QUESTION 1 Vasovagal syncope is one of the most common causes of fainting and occurs in...
QUESTION 1 Vasovagal syncope is one of the most common causes of fainting and occurs in some individuals when they see blood or a needle. Which of the following physiological responses occurs? reduced cerebral blood flow decreased blood pressure decreased heart rate All the alternatives 2 points QUESTION 2 Calculate mean arterial pressure (MAP) if a person has a blood pressure reading of 107/72. 96 mm Hg 76 mm Hg 119 mm Hg 84 mm Hg 2 points ...
Question 3 Pulse wave velocity is used to measure the speed of blood as it moves through the arterial system. (i) What evidence is there that blood moves through the arterial system in the form of a wave? (10 marks] How does the pressure and flow rate change as the blood moves though the system? In you answer, describe how reflections of the initial pulse wave affect the following wave travelling behind it. (10 marks)
In hemodynamics, blood flow through the cardiovascular system
can be modeled as an electric circuit in which the blood serves as
electricity, the blood vessels as resistive wires, and the heart as
a battery (see Figure 1).
Figure 1 Cardiovascular circuit model
Ohm’s law states that the voltage drop ΔV across each element,
the current I flowing through it, and its electrical
resistance R are related by ΔV = IR. In a blood vessel, pressure
difference between one vessel and...
21.3 HEMODYNAMICS: FACTORS AFFECTING BLOOD FLOw 815 proteins in plasma. The higher the blood's viscoily.the higher the resistance. Any condition that increases the visoityo ch as dehydration or polycythemia (an onosual -A hlood cellis), thus increases blood pressun blood presssure has dropped to about in blood cells, dac to a whose weight is 160 pounds has a total length of blood vessels equal to 70,000 miles. If he ains 1 pound of fat, his fat tissue will grow an extra...
41. How would an increase in blood CO2 levels effect respiratory rate? a. It would cause an increase in respiratory rate b. It would cause a decrease in respiratory rate 42. If arterial blood contain 98% oxyhemoglobin saturation and venous blood contains 60% oxyhemoglobin saturation, what can you conclude? a. There is increased loading of oxygen at the lung b. There is increased unloading at the tissues c. The person is resting 43. Which of the following causes water reabsorption...
BIOL 1307.001 GENERAL BIOLOGY II Homework no. 7. Blood and Immune System Blood. For veins, (C) if to veins fach description below, write in the blank (A) if the description best applies to arteries. (V) ( capillaries, (R) red blood cells, (W) white blood cells, (P) platelets, or (B) blood plasma. 1. back-flow valves carries dissolved carbon dioxide (CO2) and waste products for removal 3. carry blood away from heart 4. carry blood toward heart 5. cells that carry oxygen...
_____membranes proteins are associated with the bilayer through interactions with other membrane component on the surface of the membrane. Net movement of particles from a region where they are more concentrated to a region where they are law concentrated is called Diffusion of water through a selectively permeable membrane down its own concentration gradient It called A solution with an equivalent concentration of water and hence the tame osmotic pressure as the fluid inside the cell is said to be...
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