Question

Match the Column I with Column II regarding cardiac cycle.

Column I	Column II
i.	Atrial diastole (AD)	a.	0.5 sec
ii.	Atrial systole (AS)	b.	0.7 sec
iii.	Ventricular systole (VS)	c.	0.1 sec
iv.	Ventricular diastole (VD)	d.	0.3 sec

Choose the correct option:

• A. i-b, ii-c, iii-d, iv-a
• B. \(\mathrm{i}-\mathrm{c},\mathrm{ii}-\mathrm{d},\mathrm{iii}-\mathrm{a},\mathrm{iv}-\mathrm{b}\).
• C. i - c, ii - d, iii - b, iv -a.
• D. i-b, ii -c, iii -a, iv - d

Hint:

In a 0.8 second cardiac cycle, atrial systole lasts 0.1 s and ventricular systole 0.3 s.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
The cardiac cycle of a human lasts about 0.8 second.

Step 2: Recall the durations
Atrial systole 0.1 s, atrial diastole 0.7 s.
Ventricular systole 0.3 s, ventricular diastole 0.5 s.

Step 3: Match
i (AD) - b (0.7 s), ii (AS) - c (0.1 s), iii (VS) - d (0.3 s), iv (VD) - a (0.5 s).

Final Answer:
The matching is i-b, ii-c, iii-d, iv-a. \[ \boxed{\text{(A) }\text{i - b, ii - c, iii - d, iv - a}} \]