anatomy of the heart

Question 1

mediastinum

Answer 1

cavity in chest between lungs contains heat

Question 2

name sections of mediastinum

Answer 2

superior
inferior
anterior
middle
posterior

Question 3

peristernum

Answer 3

membrane that surrounds the heart
inner- fibrous layer
outer - double membrane serous

Question 4

fibirous layer

Answer 4

touches
major vessels
central tendon from diaphragm
sternum
pedietral serous layer

Question 5

serous layer

Answer 5

pedietral
pedietral cavity- fluid
visceral - touches heart

Question 6

rs of heart chambers

Answer 6

right a and v
pulmonary artery
vena cava
tricuspid valve
pulmonary valve

Question 7

ls of the heart chambers….

Answer 7

left a and v
aorta
pulmonary vein
mitral valve
aortic valve

Question 8

tricuspid valve

Answer 8

3 cusps
5th ics left of sternum

Question 9

pulmonary valve

Answer 9

3 cusps
2cnd ics left of sternum

Question 10

mitral valve

Answer 10

2 cusps
5th ics mcl

Question 11

aortic valve

Answer 11

3 cusps
2cnd ics right of sternum

Question 12

valve diseases

Answer 12

stenosis- narrowing
reguritation- problem closing valve

Question 13

what does the right coronary artery supply

Answer 13

both atria
right ventricle
part of posterior left ventricle
interatrial septum
posterior part of interventricular septum
sa node
av node

Question 14

left coronary artery supplies

Answer 14

both atria
anterior part of left ventricle
anterior interventricular septum
adjacent right atrium

Question 15

where do the majority of cardiac veins drain into

Answer 15

coronary sinus right atrium

Question 16

where do anterior cardiac veins drain into

Answer 16

into right atrium

Question 17

thebesian veins in myocardium drain to

Answer 17

directly into atria and ventricles

Question 18

function of cardiac conducting systems

Answer 18

initiates and co-ordinates contractions of myocardium

Question 19

myocardium

Answer 19

muscular tissue of the heart

Question 20

whats are the components of the cardiac conducting system

Answer 20

av node
sa node
bindles of his

Question 21

describe the cardiac conducting system

Answer 21

the atria and ventricles are separated by fibrous layer
only electronic pathway through bundles of HIS
av node delays signal
atria contract first and then ventricles