Would you expect to find valves in the veins leading from the brain to the heart? Defend your answer.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 15, Problem 1CC

Would you expect to find valves in the veins leading from the brain to the heart? Defend your answer.

Expert Solution & Answer

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Conclusion

There are valves in the veins which leads to the heart from the brain/

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

The shape of radishes may be long (SL/SL), oval (SL/SS), or round (SS/SS), and the color of radishes may be red (CR/CR), purple (CR/CW) or white (CW/CW). If a long, red radish plant is crossed with a round, white plant, what will be the appearance of the F1 and F2 generations?

None

Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Answer 2

Textbook Question

Chapter 15, Problem 1CC

Would you expect to find valves in the veins leading from the brain to the heart? Defend your answer.

Expert Solution & Answer

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Conclusion

There are valves in the veins which leads to the heart from the brain/

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 15, Problem 1CC

Would you expect to find valves in the veins leading from the brain to the heart? Defend your answer.

Expert Solution & Answer

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Conclusion

There are valves in the veins which leads to the heart from the brain/

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 15, Problem 1CC

Would you expect to find valves in the veins leading from the brain to the heart? Defend your answer.

Expert Solution & Answer

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Conclusion

There are valves in the veins which leads to the heart from the brain/

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Conclusion

There are valves in the veins which leads to the heart from the brain/

Answer 8

Expert Solution & Answer

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Conclusion

There are valves in the veins which leads to the heart from the brain/

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To determine: Whether valves can be found in the veins leading to the heart from the brain.

Introduction: The force that generates a flow of blood through the cardiovascular system is known as ventricular contraction. The flow of blood is directly proportional to the pressure gradient between any two ends.

Answer 12

Explanation of Solution

Veins arising from the brain do not need valves as the flow of blood occurs with the help of gravity. As the blood flows through the circulatory system, the blood pressure becomes highest in the arteries and decreases continuously. The vessels offer some resistance to blood flow, resulting in loss of energy. Finally, the pressure is decreased. The friction between the blood flows occurs due to blood flow resistance.

Answer 13

Conclusion

There are valves in the veins which leads to the heart from the brain/

Answer 14

Ch. 15 - Would you expect to find valves in the veins...Ch. 15 - Prob. 2CC Ch. 15 - Who has the higher pulse pressure, someone with...Ch. 15 - The formula given for calculating MAP applies to a...Ch. 15 - Prob. 5CC Ch. 15 - Resistance to blood flow is determined primarily...Ch. 15 - Prob. 7CC Ch. 15 - Prob. 8CC Ch. 15 - Skeletal muscle arterioles have both - and...Ch. 15 - Prob. 10CC

Would you expect to find valves in the veins leading from the brain to the heart? Defend your answer.

Solution Summary: The author explains the force that generates a flow of blood through the cardiovascular system is known as ventricular contraction.

Videos

Explanation of Solution

Want to see more full solutions like this?

Chapter 15 Solutions