Question

Directions: Circle the word in each group that is least similar to the others. Indicate the similarity of the three words on the line below each question.

1. mitral               SA node               tricuspid               pulmonic semilunar

2. AV node          His-Purkinje        precordium         pacemaker

3. atrium              ventricle              pumping chamber           pericardium

4. epi-                   endo-                    vaso-                     myo-

5. aorta                venae cavae       right atrium        pulmonary veins

6. tricuspid          AV valve               mitral                    precordium

7. P wave             S1,S2                     QRS complex     P-R interval

8. left anterior descending           troponin left       coronary artery                 circumflex

9. actin                 troponin              myosin                 creatine phosphokinase (CPK)

10. CPK                 Lactate dehydrogenase (LDH)     pericardial fluid                 serum troponin

11. lubb-dupp   S1           fibrillation            S2

12. angina           S1-S2     cardiac tamponade         myocardial infraction

13. ventral cavity              thoracic cavity   cranial cavity      mediastinum

14. cardiac impulse         ECG        pacemaker         AV valve

15. NSR                SA node               80 beats/min     nodal rhythm

16. QRS complex              ventricular depolarization            His-purkinje       pericardium

17. ventricular septal defect        left-to-right shunt            interventricular septum                SA node

18. AV valve       great vessels      chordae tendineae          valve cusps

19. apex               precordium        pulse     base

Answer 1

S.NO	LEAST SIMILAR WORD	RELATIONSHIP WITH THREE WORDS
1.	SA node- where electrical impulse initiates	Mitral, tricuspid, Pulmonary semilunar are heart valves.
2.	Precordium- The area of chest wall which overlies heart	AV node, His purkinje, pacemaker are related to electrical impulse of the heart .
3.	Pericardium- The membrane encloses the heart.	atrium, ventricle are pumping chamber of the heart.
4.	Vaso- The word relates to blood vessel	Endo-. myo-, epi- relates to the layers of the heart.
5.	Aorta- The vessel carry the blood from the heart.	venae cavae, right atrium, pulmonary veins - are receiving blood from the body parts
6.	Precordium- The area of chest wall which overlies the heart	Tricuspid, mitral, AV valve are heart valves
7.	s1,s2 are heart sounds	P wave, QRS complex, P-R interval are ECG waves
8.	Troponin- is a protein	left anterior descending, left coronary artery. circumflex are arteries of coronary circulation.
9.	Creatine Phosphokinase (CPK) is an enzyme.	Actin, myosin, troponin are proteins.
10.	Pericardial fluid - The serous fluid find in the pericardial cavity.	CPK, Lactate dehydrogenase, serum troponin are elevated in heart attack.
11.	Fibrillation - Irregular, rapid heart rate	S1- Lubb, S2 - dupp - are heart sounds.
12.	S1 S2 - heart sounds	Angina, cardiac tamponade, Myocardial infarction are cardiac conditions
13.	Mediastinum- the area between the two lungs	Thoracic cavity ( one of ventral cavity) ventral cavity, cranial cavity are denotes body cavities
14,	AV valve - one of the cardiac valve.	cardiac impulse, ECG ( the test which records the electrical activity ) The , pace maker are words related to electrical actiivity of the heart.
15.	80 beats/min - heart rate	NSR ( normal sinus rhythm), nodal rhythm, SA node ( where electrical impulse initiates are called NSR) are related to electrical conduction system of the heart.
16.	Pericardium- the membrane covers the heart.	QRS complex, ventricular depolarization, His- Purkinje are related to electrical conducting system of the heart
17.	SA node- A node where electrical impulse initiated located at the right atrium	Ventricular septal defect, interventricular septum, left- to right shunt - Related to the septum, septal defect, the pathophysiology of septal defect.
18.	Great vessels- large vessels	AV valve, chordae tendineae, valve cusps- Related to heart valves and its supporting structure
19.	Pulse- Measure of heart rate	Apex, base ( region of the heart), Precordium ( the region overlies the heart)-