`{:("Alary muscle contract"),(" "darr),("(a) Pulled down"),(" "darr),("Volume in pericardial sinus increases"),(" "darr),("Blood flows to (b)"),(" "darr),("Alary muscle relax"),(" "darr),("Blood enters from dorsal haemocoel to heart through (c)"):} `
`{:("Alary muscle contract"),(" "darr),("(a) Pulled down"),(" "darr),("Volume in pericardial sinus increases"),(" "darr),("Blood flows to (b)"),(" "darr),("Alary muscle relax"),(" "darr),("Blood enters from dorsal haemocoel to heart through (c)"):} `
A
a- Ostia, b- Dorsal Septum, c-Heart
B
a- Heart, b- Aorta, c-Ostia
C
a- Dorsal diaphragm, b-pericardial sinus, C-Ostia
D
a- Ventral septum, b-Heart, c-Aorta
Text Solution
Verified by Experts
The correct Answer is:
C
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Match the following : {:(,"Column-I",,"Column-II"),((A),"Velocity",(p),"Increased,"n uarr z darr),((B), "Potential Energy",(q),"Increased,"ndarrzuarr),((C ),E_(n)-E_(n-1) (E="Total energy for H atom "(n cancel(=)1)),(r ),"Decreased,"n uarr ),((D),"Separation energy (For H atom)",(s),"No change"n uarr):}
The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. Which of the following is a way to achieve approximately a 45% increase in the volume flow rate of blood through a blood vessel?
Knowledge Check
Match column I with column II and select the correct option from the codes given below {:(,"Column I",,"Column II"),("A.","Heart failure","(i)",underset(underset("blood supply")("damaged by an inadequate"))("Heart muscle is suddenly")),("B.","Cardiac arrest","(ii)",underset(underset("heart muscles")("inadequate" O_(2) "reachinh the"))("Chest pain due to")),("C.","Heart attack","(iii)","Atherosclerosis"),("D.",underset("diseas(CAD)")("Coronary artery"),("iv"),underset(underset("the needs of the body")("efficiency enough to meet"))("Heart not pumping blood")),("E.","Angina pectoris","(v)","Heart stops beating"):}
Match column I with column II and select the correct option from the codes given below {:(,"Column I",,"Column II"),("A.","Heart failure","(i)",underset(underset("blood supply")("damaged by an inadequate"))("Heart muscle is suddenly")),("B.","Cardiac arrest","(ii)",underset(underset("heart muscles")("inadequate" O_(2) "reachinh the"))("Chest pain due to")),("C.","Heart attack","(iii)","Atherosclerosis"),("D.",underset("diseas(CAD)")("Coronary artery"),("iv"),underset(underset("the needs of the body")("efficiency enough to meet"))("Heart not pumping blood")),("E.","Angina pectoris","(v)","Heart stops beating"):}
A
A-(iv),B-(v),C-(i),D-(iii),E-(ii)
B
A-(v),B-(iv),C-(i),D-(iii),E-(ii)
C
A-(iv),B-(v),C-(i),D-(ii),E-(iii)
D
A-(v),B-(iv),C-(ii),D-(iii),E-(i)
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a. Amphibians and reptiles have a 3 chambered heart with ___ atria and ___ventricle. b. Heart is ___ derived organ and protected by a double walled membranous bag called ____ c. The opening between right Atrium and Right ventricle is guarded by a valve formed of ___ muscular flaps, the ___ valve. d. The wall of ventricle is ____ than atria. e. SAN can generate the maximum number of action potential i.e., ____ mi n^(-1) . therefore it is called _____ f. Atrial systole increases the flow of blood into the ventricles by about ____ percent. g. In ____ all the four chambers of the heart are in a relax state. h. The ____ wave represents the depolarisation of the atria. i. A system of blood vessels is present in our body exclusively for the circulation of blood to and from the cardiac musculature called _____ j. PNA ____ the rate of heart beat and ______
Which of the following events do not occur during joint diastole ? (A) All four chamber of heart are in relaxed state (B) Atrial repolarization valve open (C ) Action potential is conducted from SAN to AVN (D) Blood from the pulmonary veins and vena cava flows into the left and right ventricles respectively through the left and right atria (E ) The semilunar valves are closed
Assertion (A) : Metallic character order is K gt Mg gt Al gt B . Reason (R ) : Along the period (rarr) metallic character increases and decreases down the group (darr) .
The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. Why is diastolic blood pressure muchh lower than systolic pressure? A. because the heart exerts more force on the blood during diastole B. Because the heart exerts no force on the blood during diastole C. Because the radii of the blood vessels increase during diastole while the force exerted by the heart on the blood remains the same. D. Because the radii of the blood vessels increase during diastole while the force exerted by the heart on the blood remains the same.
The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. During intense exercise the volume of blood pumped per second by an athlete,s heart increases by a factor of 7, and his blood pressure increases by 20%/by what factor does the power output of the heart increase during exercise?
The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. The blood pressure in a capillary bed is essentially zero, allowing blood to flow extremely slowly through the tissues in order to maximize exhange of gases nutrients and waste products what is the work on 200cm^(3) of blood against gravity to bring it to the capillaries to the brain 50 cm above the heart?
The human ciculatory system can be thought of as a closed system of interconnecting pipes through which fluid is continuously circulated by two pumps the two pumps the right and left verticles of the heart, work as simple two-stroke force pumps. The muscles of the heart regulate the force by contracting and relaxing. the contraction (systole) lasts about 0.2s and a complete systole/diastole (contraction/relaxation) cycle lasts about 0.8s. For flood pressures and speeds in the normal range. the volume flow rate of blood through a blood vessel is directly proportional tot he pressure difference over a length of the vessel and to the fourth power of the radius of the vessel. The total mechanical energy per unit volume of blood just as it leaves the heart is E//V=rhogh+P+rhov^(2) Q. What is the gravitational potential energy of 8cm^(3) of blood in a 1.8 m tall man, in a blood vessel 0.3 m above his heart? (Note: The man's blood pressure is 1.3xx10^(4)N//m^(2) )