Related Questions
The difference between systolic and diastolic pressure in human is
120 mm Hg
80 mm Hg
40 mm Hg
200 mm Hg
How many number of action potentials are generated by SAN
40
70
100
150
A defect in which of the following structures is MOST likely to disrupt the rhythmic contraction of the ventricles?
SA node
AV node
AV bundle
Purkinje fibers
SAN can generate impulses
70 – 75 min
50 – 55
100 – 150
35– 40
What is the term for the volume of blood pumped out by each ventricle per minute?
Cardiac output
Stroke volume
End-diastolic volume
End-systolic volume
Statement – I : Different parts of nodal system in the heart could generate action potentials at different rates
Statement – II : The first and second heart sounds are produced by the closure of bicuspid valve and tricuspid valve respectively
Both SI and SII are correct
Both SI and SII are incorrect
SI is correct but SII is incorrect
SI is incorrect but SII is correct
The correct sequence of conduction of impulse is
SA node AV node Purkinje fibres AV bundle
SA node purkinje fibres AV bundle Av node
SA node AV node AV bundle purkinje fibres
SA node purkinje fibres AV node AV bundle
Which phase of the cardiac cycle is characterized by ventricular relaxation and filling?
Diastole
Systole
Atrial contraction
None of the above
Which of the following structures in the heart DOES NOT directly participate in the conduction pathway of a normal heartbeat?
AV node
Bundle branches
Purkinje fibers
Chordae tendineae
A change in the DNA sequence of a gene is called a:
Phenotype
Genotype
Mutation
Allele
