Homework Answers
Blood flows the slowest in capillaries. The rate of flow of blood varies inversely with the total cross-sectional area of the blood vessel. Blood needs more time to stay in the capillaries to allow exchange of nutrients and gases, therefore capillaries have reduced pressure to allow slower speeds. High pressure in capillaries leads to fissures and aneurysms.
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The velocity of blood flowing through the circulatory system is lowest in which of the following...
1. The plot below illustrates the flow properties of blood through different blood vessels. Explain the difference...
1. The plot below illustrates the flow properties of blood through different blood vessels. Explain the difference in flow velocity between arteries and capillaries. Flow rate (min) 5000 Total cross-sectional area (cm) Velocity of flow (mm/s) Aorta Arteries Arterioles Capillaries Venules Veins Vonao cavao
1. The plot below illustrates the flow properties of blood through different blood vessels. Explain the difference...
1. The plot below illustrates the flow properties of blood through different blood vessels. Explain the difference in flow velocity between arteries and capillaries. Flow rate (min) 5000 Total cross-sectional area (cm) ARA Velocity of flow (mm/s) Aorta Arteries Arterioles Capillaries Venules Veins Venae cavae
Purpose and Function of the Circulatory System (Fill in the blanks using the terms below.)
Purpose and Function of the Circulatory System (Fill in the blanks using the terms below.) valves exchange arteries veins contracts capillaries oxygen wastes nutrients The function of the circulatory system is to transport to cells and carry away from cells to the organs responsible for eliminating them from the body. The heart is a muscular pump. When the heart_ , it produces pressure on the blood in the circulatory system. This pressure pushes blood through the body. The body travels away from...
Blood Vessels and the Circulatory System Overview of Circulatory System Blood vessels form closed tubular systems...
Blood Vessels and the Circulatory System Overview of Circulatory System Blood vessels form closed tubular systems which carry blood from the heart through the systemic and pulmonary systems. Arteries carry blood away from the heart to smaller arterioles, which feed capillary beds. The capillary beds empty into venules, which coalesce into larger veins. All veins eventually empty into the superior and inferior venae cavae or into the pulmonary veins. These vessels return blood to the heart. A. List the heart...
Part 1) Which of the following types of blood vessels would have the greatest resistance to...
Part 1) Which of the following types of blood vessels would have the greatest resistance to flow? veins arteries venules capillaries Part 2) Which of the following blood vessels play an important role in controlling blood flow to different regions of the body through the contraction and relaxation of smooth muscles in their walls? capillaries arterioles venules veins
a) Figure 4 shows the pressure and velocity profiles in the systemic circulation. Discuss how the...
a) Figure 4 shows the pressure and velocity profiles in the systemic circulation. Discuss how the profiles change from the arteries to the veins, making reference to the anatomy of the vessel walls and how the anatomy changes throughout the vascular tree. In your answer, comment on the region of highest vascular resistance. [12 marks] 120 50 100 80 60 Pressure (mm Hg) Velocity (cm/sec) 40 20 0 -50 Aorta Large Small Small Large Vena arteries arteries veins veins cava...
Problem 7. (The speed of blood) The aorta (the main blood vessel coming out of the...
Problem 7. (The speed of blood) The aorta (the main blood vessel coming out of the heart) has a radius of about 1.0 cm and the total cross section of the major arteries is about 20 cm². The density of blood is 1.05 g/cm3. A. Given that the velocity of blood pumping through the aorta is about 48 cm/s, what is the total current of the blood passing through the aorta (in grams of blood per second)? B. If all...
Question 31 1.6 pts What is the correct sequence for the blood circulation through the cardiovascular...
Question 31 1.6 pts What is the correct sequence for the blood circulation through the cardiovascular system? I-Blood is pumped from the heart into the arterial system, blood flows from the larger arteries into the fine arterioles. II-Blood flows into the venules and from there into the larger veins, from there the blood returns to the heart Il-Blood is delivered into the thinnest and most numerous capillaries, where exchanges with the tissues occur. IV-Blood flows into the peritoneal portal system...
C. Put the following blood flow steps in the correct order, starting with the vena cavae....
C. Put the following blood flow steps in the correct order, starting with the vena cavae. Systemic arteries Inferior & Superior Vena Cavae Pulmonary valve Left ventricle Tricuspid valve Left atrium Systemic arterioles Bicuspid/Mitral valve Pulmonary veins Systemic venules Right atrium Aortic valve Pulmonary arteries Aorta Lungs- oxygenation of blood Systemic veins Right ventricle Systemic capillaries
Lab Report Circulatory System Use the image on Side 10 in Lab 11 Power Point to...
Lab Report Circulatory System Use the image on Side 10 in Lab 11 Power Point to identify the following structures, Aorta Apex of the heart Coronary arteries Coronary veins Left atria Left pulmonary artery Left ventricle Pulmonary veins Pulmonary trunk Right atria Right ventricle Vena cava Starting with the right atria, place the following in order through which the blood will flc Identify the Parts of the Heart Right side of heart Left side of heart G A H B...
1. The plot below illustrates the flow properties of blood through different blood vessels. Explain the difference in flow velocity between arteries and capillaries. Flow rate (min) 5000 Total cross-sectional area (cm) Velocity of flow (mm/s) Aorta Arteries Arterioles Capillaries Venules Veins Vonao cavao
1. The plot below illustrates the flow properties of blood through different blood vessels. Explain the difference in flow velocity between arteries and capillaries. Flow rate (min) 5000 Total cross-sectional area (cm) ARA Velocity of flow (mm/s) Aorta Arteries Arterioles Capillaries Venules Veins Venae cavae
Purpose and Function of the Circulatory System (Fill in the blanks using the terms below.) valves exchange arteries veins contracts capillaries oxygen wastes nutrients The function of the circulatory system is to transport to cells and carry away from cells to the organs responsible for eliminating them from the body. The heart is a muscular pump. When the heart_ , it produces pressure on the blood in the circulatory system. This pressure pushes blood through the body. The body travels away from...
a) Figure 4 shows the pressure and velocity profiles in the systemic circulation. Discuss how the profiles change from the arteries to the veins, making reference to the anatomy of the vessel walls and how the anatomy changes throughout the vascular tree. In your answer, comment on the region of highest vascular resistance. [12 marks] 120 50 100 80 60 Pressure (mm Hg) Velocity (cm/sec) 40 20 0 -50 Aorta Large Small Small Large Vena arteries arteries veins veins cava...
Problem 7. (The speed of blood) The aorta (the main blood vessel coming out of the heart) has a radius of about 1.0 cm and the total cross section of the major arteries is about 20 cm². The density of blood is 1.05 g/cm3. A. Given that the velocity of blood pumping through the aorta is about 48 cm/s, what is the total current of the blood passing through the aorta (in grams of blood per second)? B. If all...
Question 31 1.6 pts What is the correct sequence for the blood circulation through the cardiovascular system? I-Blood is pumped from the heart into the arterial system, blood flows from the larger arteries into the fine arterioles. II-Blood flows into the venules and from there into the larger veins, from there the blood returns to the heart Il-Blood is delivered into the thinnest and most numerous capillaries, where exchanges with the tissues occur. IV-Blood flows into the peritoneal portal system...
C. Put the following blood flow steps in the correct order, starting with the vena cavae. Systemic arteries Inferior & Superior Vena Cavae Pulmonary valve Left ventricle Tricuspid valve Left atrium Systemic arterioles Bicuspid/Mitral valve Pulmonary veins Systemic venules Right atrium Aortic valve Pulmonary arteries Aorta Lungs- oxygenation of blood Systemic veins Right ventricle Systemic capillaries
Lab Report Circulatory System Use the image on Side 10 in Lab 11 Power Point to identify the following structures, Aorta Apex of the heart Coronary arteries Coronary veins Left atria Left pulmonary artery Left ventricle Pulmonary veins Pulmonary trunk Right atria Right ventricle Vena cava Starting with the right atria, place the following in order through which the blood will flc Identify the Parts of the Heart Right side of heart Left side of heart G A H B...
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