EASY
NEET
IMPORTANT
Earn 100

Blood enters the heart because muscles of the

66.67% studentsanswered this correctly

Important Questions on Body Fluids and Circulation

MEDIUM
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 64
During ventricular systole
EASY
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 65
If due to some injury the chordae tendineae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
MEDIUM
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 66
In humans, blood passes from the post caval to the diastolic right atrium of heart due to
HARD
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 67
The figure given below shows three stages in the cardiac cycle.
Question Image
Which of the following sequences is correct regarding this?
HARD
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 68
A red blood cell, entering the right side of the heart passes by or through the following structures.
(i) Atrioventricular valves
(ii) Semilunar valves
(iii) Right atrium
(iv) Right ventricle
(v) SAN
Which of the following options represents the correct sequence?
MEDIUM
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 69
What happens when the pacemaker becomes non-functional?
MEDIUM
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 70
In the given figure the durations of the events of the cardiac cycle are given. Identify these events and select the correct option.
Question Image
HARD
NEET
IMPORTANT
MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 18 - Body Fluids and Circulation>MCQS CORNER>Q 71
Which of the following statement(s) regarding the cardiac system is/are correct?
(i) The 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 volume×Heart rate = Cardiac output.