A cardiac cycle (atrial systole + ventricular systole + diastole) is completed in 0.8 seconds.
BIOXI18: BODY FLUIDS AND CIRCULATION
339184
The first heart sound is caused by the closure of the ____ valves.
1 Tricuspid and bicuspid- semilunar valve
2 Pulmonary semilunar
3 Mitral
4 Tricuspid and bicuspid-AV valve
Explanation:
In healthy adults, there are two normal heart sounds, often described as a lub and a dub (or dup), that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively.
BIOXI18: BODY FLUIDS AND CIRCULATION
339169
Identify the correct sequence of events in a cardiac cycle:
The correct sequence of events in a cardiac cycle is as follow : Atrial systole, ventricular systole, joint diastole. The SAN generates an action potential which stimulates both the atria to undergo a simultaneous contraction - the atrial systole. This increases the flow of blood into the ventricles by about 30 percent. The action potential is conducted to the ventricular side by the AVN and AV bundle from where the bundle of His transmits it through the entire ventricular musculature. This causes the ventricular muscles to contract, (ventricular systole), the atria undergoes relaxation (diastole), coinciding with the ventricular systole. i.e. Joint diastole.
BIOXI18: BODY FLUIDS AND CIRCULATION
339170
If the systolic pressure is \(120 \mathrm{~mm} \mathrm{Hg}\) and diastolic pressure is \(80 \mathrm{~mm} \mathrm{Hg}\). The pulse pressure is ____
1 \(120-{80=40 \mathrm{~mm} \mathrm{Hg}}\)
2 \(120 \times 80=960 \mathrm{~mm} \mathrm{Hg}\)
3 \(120+80=200 \mathrm{~mm} \mathrm{Hg}\)
4 \(120 / 80=1.5 \mathrm{~mm} \mathrm{Hg}\)
Explanation:
In the healthy young adults, the pressure at the top of pressure pulsation record, called the systolic pressure is about \(120 \mathrm{~mm} \mathrm{Hg}\). At the lowest point of pulse record, called diastolic pressure, it is about \(80 \mathrm{~mm} \mathrm{Hg}\). The difference between the two pressures (ie., about \(40 \mathrm{~mm}\) \(\mathrm{Hg}\) ) is called as pulse pressure.
BIOXI18: BODY FLUIDS AND CIRCULATION
339171
In a typical heart, if EDV is \(120 \mathrm{~mL}\) of blood and \(\mathrm{ESV}\) is \(50 \mathrm{~mL}\) of blood, the stroke volume (SV) is
1 \(120+50=70 \mathrm{~mL}\)
2 \(120-50=70 \mathrm{~mL}\)
3 \(120 / 50=2.4 \mathrm{~mL}\)
4 \(120 / 50=6000 \mathrm{~mL}\)
Explanation:
During diastole, normal filling of the ventricles increases the volume of each ventricle. This volume is called the enddiastolic blood volume (EDV). Then, as the ventricles empty during systole, the volume decreases, which is called stroke volume output (SV). The remaining volume in each ventricle is called the end systolic volume (ESV). Therefore, stroke volume can be calculated by the following formula: \(\mathrm{EDV}=\mathrm{ESV}+\mathrm{SV}\) Here, EDV is \(120 \mathrm{~mL}\); ESV is \(50 \mathrm{~mL}\) so \(\mathrm{SV}\) will become. \(120=50+\mathrm{SV}\) \(\mathrm{SV}=(120-50) \mathrm{mL}\) Therefore, \(\mathrm{SV}=70 \mathrm{~mL}\)
A cardiac cycle (atrial systole + ventricular systole + diastole) is completed in 0.8 seconds.
BIOXI18: BODY FLUIDS AND CIRCULATION
339184
The first heart sound is caused by the closure of the ____ valves.
1 Tricuspid and bicuspid- semilunar valve
2 Pulmonary semilunar
3 Mitral
4 Tricuspid and bicuspid-AV valve
Explanation:
In healthy adults, there are two normal heart sounds, often described as a lub and a dub (or dup), that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively.
BIOXI18: BODY FLUIDS AND CIRCULATION
339169
Identify the correct sequence of events in a cardiac cycle:
The correct sequence of events in a cardiac cycle is as follow : Atrial systole, ventricular systole, joint diastole. The SAN generates an action potential which stimulates both the atria to undergo a simultaneous contraction - the atrial systole. This increases the flow of blood into the ventricles by about 30 percent. The action potential is conducted to the ventricular side by the AVN and AV bundle from where the bundle of His transmits it through the entire ventricular musculature. This causes the ventricular muscles to contract, (ventricular systole), the atria undergoes relaxation (diastole), coinciding with the ventricular systole. i.e. Joint diastole.
BIOXI18: BODY FLUIDS AND CIRCULATION
339170
If the systolic pressure is \(120 \mathrm{~mm} \mathrm{Hg}\) and diastolic pressure is \(80 \mathrm{~mm} \mathrm{Hg}\). The pulse pressure is ____
1 \(120-{80=40 \mathrm{~mm} \mathrm{Hg}}\)
2 \(120 \times 80=960 \mathrm{~mm} \mathrm{Hg}\)
3 \(120+80=200 \mathrm{~mm} \mathrm{Hg}\)
4 \(120 / 80=1.5 \mathrm{~mm} \mathrm{Hg}\)
Explanation:
In the healthy young adults, the pressure at the top of pressure pulsation record, called the systolic pressure is about \(120 \mathrm{~mm} \mathrm{Hg}\). At the lowest point of pulse record, called diastolic pressure, it is about \(80 \mathrm{~mm} \mathrm{Hg}\). The difference between the two pressures (ie., about \(40 \mathrm{~mm}\) \(\mathrm{Hg}\) ) is called as pulse pressure.
BIOXI18: BODY FLUIDS AND CIRCULATION
339171
In a typical heart, if EDV is \(120 \mathrm{~mL}\) of blood and \(\mathrm{ESV}\) is \(50 \mathrm{~mL}\) of blood, the stroke volume (SV) is
1 \(120+50=70 \mathrm{~mL}\)
2 \(120-50=70 \mathrm{~mL}\)
3 \(120 / 50=2.4 \mathrm{~mL}\)
4 \(120 / 50=6000 \mathrm{~mL}\)
Explanation:
During diastole, normal filling of the ventricles increases the volume of each ventricle. This volume is called the enddiastolic blood volume (EDV). Then, as the ventricles empty during systole, the volume decreases, which is called stroke volume output (SV). The remaining volume in each ventricle is called the end systolic volume (ESV). Therefore, stroke volume can be calculated by the following formula: \(\mathrm{EDV}=\mathrm{ESV}+\mathrm{SV}\) Here, EDV is \(120 \mathrm{~mL}\); ESV is \(50 \mathrm{~mL}\) so \(\mathrm{SV}\) will become. \(120=50+\mathrm{SV}\) \(\mathrm{SV}=(120-50) \mathrm{mL}\) Therefore, \(\mathrm{SV}=70 \mathrm{~mL}\)
A cardiac cycle (atrial systole + ventricular systole + diastole) is completed in 0.8 seconds.
BIOXI18: BODY FLUIDS AND CIRCULATION
339184
The first heart sound is caused by the closure of the ____ valves.
1 Tricuspid and bicuspid- semilunar valve
2 Pulmonary semilunar
3 Mitral
4 Tricuspid and bicuspid-AV valve
Explanation:
In healthy adults, there are two normal heart sounds, often described as a lub and a dub (or dup), that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively.
BIOXI18: BODY FLUIDS AND CIRCULATION
339169
Identify the correct sequence of events in a cardiac cycle:
The correct sequence of events in a cardiac cycle is as follow : Atrial systole, ventricular systole, joint diastole. The SAN generates an action potential which stimulates both the atria to undergo a simultaneous contraction - the atrial systole. This increases the flow of blood into the ventricles by about 30 percent. The action potential is conducted to the ventricular side by the AVN and AV bundle from where the bundle of His transmits it through the entire ventricular musculature. This causes the ventricular muscles to contract, (ventricular systole), the atria undergoes relaxation (diastole), coinciding with the ventricular systole. i.e. Joint diastole.
BIOXI18: BODY FLUIDS AND CIRCULATION
339170
If the systolic pressure is \(120 \mathrm{~mm} \mathrm{Hg}\) and diastolic pressure is \(80 \mathrm{~mm} \mathrm{Hg}\). The pulse pressure is ____
1 \(120-{80=40 \mathrm{~mm} \mathrm{Hg}}\)
2 \(120 \times 80=960 \mathrm{~mm} \mathrm{Hg}\)
3 \(120+80=200 \mathrm{~mm} \mathrm{Hg}\)
4 \(120 / 80=1.5 \mathrm{~mm} \mathrm{Hg}\)
Explanation:
In the healthy young adults, the pressure at the top of pressure pulsation record, called the systolic pressure is about \(120 \mathrm{~mm} \mathrm{Hg}\). At the lowest point of pulse record, called diastolic pressure, it is about \(80 \mathrm{~mm} \mathrm{Hg}\). The difference between the two pressures (ie., about \(40 \mathrm{~mm}\) \(\mathrm{Hg}\) ) is called as pulse pressure.
BIOXI18: BODY FLUIDS AND CIRCULATION
339171
In a typical heart, if EDV is \(120 \mathrm{~mL}\) of blood and \(\mathrm{ESV}\) is \(50 \mathrm{~mL}\) of blood, the stroke volume (SV) is
1 \(120+50=70 \mathrm{~mL}\)
2 \(120-50=70 \mathrm{~mL}\)
3 \(120 / 50=2.4 \mathrm{~mL}\)
4 \(120 / 50=6000 \mathrm{~mL}\)
Explanation:
During diastole, normal filling of the ventricles increases the volume of each ventricle. This volume is called the enddiastolic blood volume (EDV). Then, as the ventricles empty during systole, the volume decreases, which is called stroke volume output (SV). The remaining volume in each ventricle is called the end systolic volume (ESV). Therefore, stroke volume can be calculated by the following formula: \(\mathrm{EDV}=\mathrm{ESV}+\mathrm{SV}\) Here, EDV is \(120 \mathrm{~mL}\); ESV is \(50 \mathrm{~mL}\) so \(\mathrm{SV}\) will become. \(120=50+\mathrm{SV}\) \(\mathrm{SV}=(120-50) \mathrm{mL}\) Therefore, \(\mathrm{SV}=70 \mathrm{~mL}\)
A cardiac cycle (atrial systole + ventricular systole + diastole) is completed in 0.8 seconds.
BIOXI18: BODY FLUIDS AND CIRCULATION
339184
The first heart sound is caused by the closure of the ____ valves.
1 Tricuspid and bicuspid- semilunar valve
2 Pulmonary semilunar
3 Mitral
4 Tricuspid and bicuspid-AV valve
Explanation:
In healthy adults, there are two normal heart sounds, often described as a lub and a dub (or dup), that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively.
BIOXI18: BODY FLUIDS AND CIRCULATION
339169
Identify the correct sequence of events in a cardiac cycle:
The correct sequence of events in a cardiac cycle is as follow : Atrial systole, ventricular systole, joint diastole. The SAN generates an action potential which stimulates both the atria to undergo a simultaneous contraction - the atrial systole. This increases the flow of blood into the ventricles by about 30 percent. The action potential is conducted to the ventricular side by the AVN and AV bundle from where the bundle of His transmits it through the entire ventricular musculature. This causes the ventricular muscles to contract, (ventricular systole), the atria undergoes relaxation (diastole), coinciding with the ventricular systole. i.e. Joint diastole.
BIOXI18: BODY FLUIDS AND CIRCULATION
339170
If the systolic pressure is \(120 \mathrm{~mm} \mathrm{Hg}\) and diastolic pressure is \(80 \mathrm{~mm} \mathrm{Hg}\). The pulse pressure is ____
1 \(120-{80=40 \mathrm{~mm} \mathrm{Hg}}\)
2 \(120 \times 80=960 \mathrm{~mm} \mathrm{Hg}\)
3 \(120+80=200 \mathrm{~mm} \mathrm{Hg}\)
4 \(120 / 80=1.5 \mathrm{~mm} \mathrm{Hg}\)
Explanation:
In the healthy young adults, the pressure at the top of pressure pulsation record, called the systolic pressure is about \(120 \mathrm{~mm} \mathrm{Hg}\). At the lowest point of pulse record, called diastolic pressure, it is about \(80 \mathrm{~mm} \mathrm{Hg}\). The difference between the two pressures (ie., about \(40 \mathrm{~mm}\) \(\mathrm{Hg}\) ) is called as pulse pressure.
BIOXI18: BODY FLUIDS AND CIRCULATION
339171
In a typical heart, if EDV is \(120 \mathrm{~mL}\) of blood and \(\mathrm{ESV}\) is \(50 \mathrm{~mL}\) of blood, the stroke volume (SV) is
1 \(120+50=70 \mathrm{~mL}\)
2 \(120-50=70 \mathrm{~mL}\)
3 \(120 / 50=2.4 \mathrm{~mL}\)
4 \(120 / 50=6000 \mathrm{~mL}\)
Explanation:
During diastole, normal filling of the ventricles increases the volume of each ventricle. This volume is called the enddiastolic blood volume (EDV). Then, as the ventricles empty during systole, the volume decreases, which is called stroke volume output (SV). The remaining volume in each ventricle is called the end systolic volume (ESV). Therefore, stroke volume can be calculated by the following formula: \(\mathrm{EDV}=\mathrm{ESV}+\mathrm{SV}\) Here, EDV is \(120 \mathrm{~mL}\); ESV is \(50 \mathrm{~mL}\) so \(\mathrm{SV}\) will become. \(120=50+\mathrm{SV}\) \(\mathrm{SV}=(120-50) \mathrm{mL}\) Therefore, \(\mathrm{SV}=70 \mathrm{~mL}\)
A cardiac cycle (atrial systole + ventricular systole + diastole) is completed in 0.8 seconds.
BIOXI18: BODY FLUIDS AND CIRCULATION
339184
The first heart sound is caused by the closure of the ____ valves.
1 Tricuspid and bicuspid- semilunar valve
2 Pulmonary semilunar
3 Mitral
4 Tricuspid and bicuspid-AV valve
Explanation:
In healthy adults, there are two normal heart sounds, often described as a lub and a dub (or dup), that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively.
BIOXI18: BODY FLUIDS AND CIRCULATION
339169
Identify the correct sequence of events in a cardiac cycle:
The correct sequence of events in a cardiac cycle is as follow : Atrial systole, ventricular systole, joint diastole. The SAN generates an action potential which stimulates both the atria to undergo a simultaneous contraction - the atrial systole. This increases the flow of blood into the ventricles by about 30 percent. The action potential is conducted to the ventricular side by the AVN and AV bundle from where the bundle of His transmits it through the entire ventricular musculature. This causes the ventricular muscles to contract, (ventricular systole), the atria undergoes relaxation (diastole), coinciding with the ventricular systole. i.e. Joint diastole.
BIOXI18: BODY FLUIDS AND CIRCULATION
339170
If the systolic pressure is \(120 \mathrm{~mm} \mathrm{Hg}\) and diastolic pressure is \(80 \mathrm{~mm} \mathrm{Hg}\). The pulse pressure is ____
1 \(120-{80=40 \mathrm{~mm} \mathrm{Hg}}\)
2 \(120 \times 80=960 \mathrm{~mm} \mathrm{Hg}\)
3 \(120+80=200 \mathrm{~mm} \mathrm{Hg}\)
4 \(120 / 80=1.5 \mathrm{~mm} \mathrm{Hg}\)
Explanation:
In the healthy young adults, the pressure at the top of pressure pulsation record, called the systolic pressure is about \(120 \mathrm{~mm} \mathrm{Hg}\). At the lowest point of pulse record, called diastolic pressure, it is about \(80 \mathrm{~mm} \mathrm{Hg}\). The difference between the two pressures (ie., about \(40 \mathrm{~mm}\) \(\mathrm{Hg}\) ) is called as pulse pressure.
BIOXI18: BODY FLUIDS AND CIRCULATION
339171
In a typical heart, if EDV is \(120 \mathrm{~mL}\) of blood and \(\mathrm{ESV}\) is \(50 \mathrm{~mL}\) of blood, the stroke volume (SV) is
1 \(120+50=70 \mathrm{~mL}\)
2 \(120-50=70 \mathrm{~mL}\)
3 \(120 / 50=2.4 \mathrm{~mL}\)
4 \(120 / 50=6000 \mathrm{~mL}\)
Explanation:
During diastole, normal filling of the ventricles increases the volume of each ventricle. This volume is called the enddiastolic blood volume (EDV). Then, as the ventricles empty during systole, the volume decreases, which is called stroke volume output (SV). The remaining volume in each ventricle is called the end systolic volume (ESV). Therefore, stroke volume can be calculated by the following formula: \(\mathrm{EDV}=\mathrm{ESV}+\mathrm{SV}\) Here, EDV is \(120 \mathrm{~mL}\); ESV is \(50 \mathrm{~mL}\) so \(\mathrm{SV}\) will become. \(120=50+\mathrm{SV}\) \(\mathrm{SV}=(120-50) \mathrm{mL}\) Therefore, \(\mathrm{SV}=70 \mathrm{~mL}\)
