Coronary & Pulmonary circulation

Question 1

Occultation Principle

Answer 1

Aortic semilunar valve - 2nd intercostal space at right sternal margin
Pulmonary Semilunar valve - 2nd intercostal space at left sternal margin
Tricuspid valve - right sternal margin of 5th intercostal space
Mitral valve - heart apex, in 5th intercostal space in line with middle of clavicle

Question 2

Lub dub sound

Answer 2

lub = mitral and tricuspid valve closing
dub = aortic and pulmonary valve closing

Question 3

ECG

Answer 3

P = atrial systole
QRS = Electric excitation of ventricle
T = ventricular diastole

Question 4

Ventricular Septal Defect

Answer 4

Hole in ventricular

different from fossa ovalis which is a hole in atrial wall

Question 5

Transposition of the Great Vessels

Answer 5

Aorta and Pulmonary trunk orientation wrong

Question 6

Coarctation of the aorta

Answer 6

aorta is constricted

Question 7

Pulmonary valve stenosis

Answer 7

may also get calcification of wall

Question 8

Teratology of Fallot

Answer 8

Multiple defects including:

pulmonary valve stenosis, ventricular septal defect, aorta open from both ventricles

Question 9

Semilunar valve connected to ____ to prevent reflux

Answer 9

Chordae tendinae

Question 10

Fibrous skeleton

Answer 10

support valves
draw oblique line through heart
electrically inert

Question 11

Conduction system in heart

Answer 11

SA node in RA to LA by gap junctions

SA node to AV and then AV bundle to apex

Question 12

Other name for AV bundle

Answer 12

Bundle of his

Question 13

Ventricles contract from

Answer 13

Bottom-up

Question 14

Atherosclerosis

Answer 14

closure of coronary arteries

Question 15

Right coronary artery

Answer 15

run between RA and RV (coronary sulcus)

branch to Marginal artery

Question 16

Left coronary artery

Answer 16

behind pulmonary trunk
branches to:
Circumflex - back around the heart
Anterior interventricular artery - between two ventricles

Question 17

Anastomose

Answer 17

two blood vessels come together

Question 18

Site of anastomosis

Answer 18

right and left arteries

posterior and anterior interventricular arteries

Question 19

Anastamosis of anterior and posterior interventricular arteries innervate

Answer 19

AV bundle

Question 20

Coronary artery origins

Answer 20

the 3 semilunar cusps for aorta have sinuses

Question 21

Coronary Veins

Answer 21

Great cardiac vein
middle cardiac vein
small cardiac vein
anterior cardiac veins

Question 22

Great cardiac vein runs with

Answer 22

anterior interventricular artery

drains LV

Question 23

Middle cardiac vein runs with

Answer 23

Posterior interventricular artery

Question 24

small cardiac vein runs with

Answer 24

marginal artery

Question 25

All veins except anterior cardiac veins drain into ___

Answer 25

coronary sinus

Question 26

Anterior cardiac veins

Answer 26

Drain RV

Directly into RA

Question 27

Arch of aorta branches to

Answer 27

Brachiocephalic artery
Left common carotid artery
Left subclavian artery

Question 28

Brachiocephalic artery branches to

Answer 28

right common carotid artery

left cubclavian artery