BODY FLUIDS AND CIRCULATION
1. Longitudinal section of the human heart showing internal structure is given below. Observe the diagram and answer the following questions:
a) Label the parts marked as A, B, C.
b) Draw a flowchart to show double circulation. (3)
“Sinoatrial Node is called pace maker of our heart.”
a) Justify the statement.
b) Define cardiac cycle and cardiac output.
1. a) Select the correct statement regarding with ECG of man.
i) P-wave represents auricular repolarization
ii) P-wave represents ventricular repolarization
iii) P-wave represents auricular depolarization
iv) P-wave represents ventricular depolarization (1)
b) observe the diagram and label A, B, C and D. (2)
1) Diagrammatic representation of a standard ECG is given below:
a. What does the QRS complex denotes?
b. Mention the clinical significance of ECG.
2) Match the terms in column A with those in column B and C.
2 – 3%
20 – 25%
60 – 65%