NEET 2019
- Exam
- NEET
- Year
- 2019
- Subject
- Zoology
- Chapter
- Body Fluids and Circulation
NEET 2019 · Zoology · Body Fluids and Circulation
Match the Column - I with Column - II: Column - I Column II (a) P -...
Match the Column - I with Column - II:
Select the correct option
| Column - I | Column II | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| P - wave | \left(i\right) | QRS complex | \left(ii\right) | T - wave | \left(iii\right) | Reduction in the size of T - wave | \left(iv\right)\left(v\right) | Repolarisation of atria |
Select the correct option
Options
- A
- B
- C
- D
Correct answer
A.
Step-by-step solution
The first deflection is the P wave linked with right and left atrial depolarization. A wave of which is invisible because of low amplitude.
The normal P wave is no higher than 2.5 mm (two-and-a half1-mm-divisions) tall and less than 120 ms (three 1-mm-divisions) in width in any lead.
The second wave is the QRS complex. The complex has a series of 3 deflections that reflects current associated with right and left ventricular depolarization. By convention, the first deflection in the complex, if negative, is called a Q wave. The first positive deflection in the complex is called an R wave. A negative deflection after an R wave is called an S wave. The most labile wave in the ECG is the T wave, which changes including low-amplitude T waves and abnormally inverted T waves, which may be the result of many cardiac and non-cardiac conditions.
The normal P wave is no higher than 2.5 mm (two-and-a half1-mm-divisions) tall and less than 120 ms (three 1-mm-divisions) in width in any lead.
The second wave is the QRS complex. The complex has a series of 3 deflections that reflects current associated with right and left ventricular depolarization. By convention, the first deflection in the complex, if negative, is called a Q wave. The first positive deflection in the complex is called an R wave. A negative deflection after an R wave is called an S wave. The most labile wave in the ECG is the T wave, which changes including low-amplitude T waves and abnormally inverted T waves, which may be the result of many cardiac and non-cardiac conditions.