The correct occurrence of sequences if semilunar valves are open (a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7 (1) coronary arteries fill (2) AV valves are closed (3) ventricles are in systole (4) ventricles are in diastole (5) blood enters aorta (6) blood enters pulmonary arteries (7) atria contract

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Answer 1

Question

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

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Students have asked these similar questions

A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.

With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Answer 2

Question

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

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Answer 3

Question

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

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Answer 4

Question

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

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

Answer 5

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

Answer 6

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

Answer 7

Chapter 18, Problem 1RQ

Summary Introduction

To determine:

The correct occurrence of sequences if semilunar valves are open

(a) 2, 3, 5, 6, (b) 1, 2, 3, 7, (c) 1, 3, 5, 6, (d) 2, 4, 5, 7

(1) coronary arteries fill

(2) AV valves are closed

(3) ventricles are in systole

(4) ventricles are in diastole

(5) blood enters aorta

(6) blood enters pulmonary arteries

(7) atria contract

Answer 8

Expert Solution & Answer

Answer to Problem 1RQ

Solution:

(a) 2, 3, 5, 6: The events that occur when the semilunar valves are open are listed as follows:

1. The closing of atrioventricular valves.

2. The ventricles are in the systolic stage.

3. The blood enters the aorta.

4. The blood enters the pulmonary arteries.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

The semilunar valve is situated between the left ventricle and aorta of the heart. The opening of the semilunar valves marks the systolic stage. The atrioventricular valves at this stage are closed in order to prevent the backflow of the blood. The blood is pumped to the aorta and the pulmonary artery to distribute it to the different parts of the body.

Answer 12

Ch. 18 - Prob. 1RQ Ch. 18 - 2. The portion of the intrinsic conduction system...Ch. 18 - 3. An ECG provides information about (a) cardiac...Ch. 18 - 4. The sequence of contraction of the heart...Ch. 18 - 5. The fact that the left ventricular wall is...Ch. 18 - 6. The chordate tendineae (a) close the...Ch. 18 - 7. In the heart, which of the following apply? (1)...Ch. 18 - 8. The activity of the heart depends on intrinsic...Ch. 18 - 9. Freshly oxygenated blood is first received by...Ch. 18 - 10. Describe the location and position of the...

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Answer to Problem 1RQ

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Chapter 18 Solutions