Heart is composed of which of the following muscle/tissue?
a) collagen
b) cardiac
c) smooth
d) skeletal
Explanation: these are the specialized type of muscles keep working day and night untiringly
Which of the following is/are the structural property/ies of auricles?
a) they are thin walled
b) they are separated by inter-auricular septum
c) they are smaller in size
d) all of these
Explanation: they are the anterior portion of the heart
Which of the following is/are the structural property/ies of ventricles?
a) they are thick walled
b) they are separated by inter-ventricular septum
c) they are larger in size
d) all of these
Right atrium communicates with …….. through a valve called……valve.
a) left atrium – bicuspid valve
b) left atrium – tricuspid valve
c) left ventricle – bicuspid valve
d) right ventricle– tricuspid valve
Explanation: tricuspid valve consists of three flap of muscles
Left atrium communicates with ……..through a valve called……valve.
a) right atrium – bicuspid valve
b) left atrium – tricuspid valve
c) left ventricle – bicuspid valve
d) right ventricle – tricuspid valve
Explanation: bicuspid valve consists of two flap of muscles
What is the direction of blood in bicuspid and tricuspid valves?
a) always from auricles to auricles
b) always from auricles to ventricles
c) always from ventricles to auricles
d) always from ventricles to ventricles
Explanation: they control the back flow of blood from ventricles to atria
