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Which of the following statement(s) regarding the cardiac system is/are correct?
(i) Human heart is an ectodermal derivative.
(ii) Mitral valve guards the opening between the right atrium and left ventricle.
(iii) SAN is located on the left upper corner of the right atrium.
(iv) Stroke x Heart rate = Cardiac output.
(i) Human heart is an ectodermal derivative.
(ii) Mitral valve guards the opening between the right atrium and left ventricle.
(iii) SAN is located on the left upper corner of the right atrium.
(iv) Stroke x Heart rate = Cardiac output.
- a)(i) only
- b)(i) and (ii)
- c)(ii) and (iii)
- d)(iv) only
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following statement(s) regarding the cardiac system is/ar...
During a cardiac cycle, each ventricle pumps out approximately 70 mL of blood which is called stroke volume. The stroke volume multiplied by the number of heart beats per minute (heart rate) gives the cardiac output. Therefore, Cardiac output = Stroke × heart rate =70×72=5040 mL per minute i.e., 5 litres per minute.
Most Upvoted Answer
Which of the following statement(s) regarding the cardiac system is/ar...
Cardiac System
The cardiac system is a complex network of structures and processes that work together to pump and circulate blood throughout the body. Understanding the different components and functions of the cardiac system is essential for understanding how the heart and circulatory system function as a whole.
(i) Human heart is an ectodermal derivative.
This statement is incorrect. The human heart is not derived from the ectoderm, but from the mesoderm. During embryonic development, the heart forms from the mesodermal layer, specifically the splanchnic mesoderm. The splanchnic mesoderm gives rise to the cardiogenic area, which eventually differentiates into the heart tube. This tube then undergoes further development to form the four chambers of the heart.
(ii) Mitral valve guards the opening between the right atrium and left ventricle.
This statement is incorrect. The mitral valve, also known as the bicuspid valve, is located between the left atrium and left ventricle. It consists of two leaflets or cusps that prevent the backflow of blood from the left ventricle to the left atrium during ventricular contraction.
(iii) SAN is located on the left upper corner of the right atrium.
This statement is incorrect. The sinoatrial node (SAN), also known as the pacemaker of the heart, is located in the upper part of the right atrium near the opening of the superior vena cava. It is responsible for initiating the electrical impulses that regulate the rhythm of the heart.
(iv) Stroke x Heart rate = Cardiac output.
This statement is correct. Cardiac output is the amount of blood pumped by the heart per minute, and it is calculated by multiplying the stroke volume (the amount of blood pumped with each heartbeat) by the heart rate (the number of heartbeats per minute). Therefore, the formula for cardiac output is stroke volume x heart rate.
In summary, the correct statement regarding the cardiac system is option (iv) only, which states that the formula for cardiac output is stroke volume x heart rate.
The cardiac system is a complex network of structures and processes that work together to pump and circulate blood throughout the body. Understanding the different components and functions of the cardiac system is essential for understanding how the heart and circulatory system function as a whole.
(i) Human heart is an ectodermal derivative.
This statement is incorrect. The human heart is not derived from the ectoderm, but from the mesoderm. During embryonic development, the heart forms from the mesodermal layer, specifically the splanchnic mesoderm. The splanchnic mesoderm gives rise to the cardiogenic area, which eventually differentiates into the heart tube. This tube then undergoes further development to form the four chambers of the heart.
(ii) Mitral valve guards the opening between the right atrium and left ventricle.
This statement is incorrect. The mitral valve, also known as the bicuspid valve, is located between the left atrium and left ventricle. It consists of two leaflets or cusps that prevent the backflow of blood from the left ventricle to the left atrium during ventricular contraction.
(iii) SAN is located on the left upper corner of the right atrium.
This statement is incorrect. The sinoatrial node (SAN), also known as the pacemaker of the heart, is located in the upper part of the right atrium near the opening of the superior vena cava. It is responsible for initiating the electrical impulses that regulate the rhythm of the heart.
(iv) Stroke x Heart rate = Cardiac output.
This statement is correct. Cardiac output is the amount of blood pumped by the heart per minute, and it is calculated by multiplying the stroke volume (the amount of blood pumped with each heartbeat) by the heart rate (the number of heartbeats per minute). Therefore, the formula for cardiac output is stroke volume x heart rate.
In summary, the correct statement regarding the cardiac system is option (iv) only, which states that the formula for cardiac output is stroke volume x heart rate.
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Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer?
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Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer?.
Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statement(s) regarding the cardiac system is/are correct?(i) Human heart is an ectodermal derivative.(ii) Mitral valve guards the opening between the right atrium and left ventricle.(iii) SAN is located on the left upper corner of the right atrium.(iv) Stroke x Heart rate = Cardiac output.a)(i) onlyb)(i) and (ii)c)(ii) and (iii)d)(iv) onlyCorrect answer is option 'D'. Can you explain this answer?.
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