heart

Question 1

mediastinum

Answer 1

space with heart, trachea, esophagus, connective tissue

Question 2

pericardium

Answer 2

double walled pericardial sac

Question 3

medical conditions of the pericardium

Answer 3

pericarditis

cardiac tamponade

Question 4

cardiac tamponade

Answer 4

cardiac stress from fluid volume accumulated in pericardial sac

Question 5

layers of the heart wall

Answer 5

epicardium
myocardium
endocardium

Question 6

chambers of the heart

Answer 6

atria

ventricles

Question 7

atria

Answer 7

receiving chambers of the heart

Question 8

what seperates the left and right atrium

Answer 8

the atrial septum

Question 9

depression in the septal wall

Answer 9

fossa ovalis

Question 10

what happens to the foramen ovale

Answer 10

the foramen ovale allows some blood to bypass the trip to the lungs by flowing through the atrial septum. closes at birth

Question 11

atrial septal defect

Answer 11

ASD is common birth defect where foramen remains partially open

Question 12

what seperates left and right ventricles

Answer 12

interventricular septum

Question 13

ventricular septal defect

Answer 13

VSD - serious birth defect that mixes blood of low o2 content into blood pushed out to oxygenate the body tissues

Question 14

pathway of blood through heart

Answer 14

pulmonary circuit

systemic circuit

Question 15

pulmonary circuit

Answer 15

vessels sending deoxygenated blood from rt heart to the lungs for gas exchange and then taking it back to the lt side of the heart

Question 16

systemic circuit

Answer 16

vessels delivering blood from lt side of heart to the tissues and returning the deoxygenated blood back to rt side of the heart

Question 17

coronary arteries

Answer 17

left coronary artery
right coronary artery
posterior interventricular artery

Question 18

left coronary artery

Answer 18

left anterior descending artery (LAD)

circumflex artery

Question 19

right coronary artery

Answer 19

right marginal artery

Question 20

what does the left coronary artery supply

Answer 20

supplies the anterior ventricular walla and interventricular septum

Question 21

what does circumflex artery supply

Answer 21

supplies the left atrium and posterior ventricular walld

Question 22

what does posterior interventricular artery supply

Answer 22

feeds posterior interventricular walls and then forms an anastomosis (junction) with the anterior interventricular artery

Question 23

cardiac veins

Answer 23

great cardiac (anterior)
middle cardiac (posterior)

Question 24

what do cardiac veins supply

Answer 24

collect blood delivered by the coronary arteries and deliver it back to the rt atrium via the coranary sinus

Question 25

anaerobic respiration

Answer 25

glucose -> in cytoplasm yeilds 2 ATP + lactic acid

Question 26

aerobic respiration

Answer 26

o2 + glucose -> in mitochondria yeilds o2+co2+ 36 ATP

Question 27

angina pectoris

Answer 27

heaviness and or pain in the chest

Question 28

possible cause of agina

Answer 28

inability to deliver nutrients to cardiac cells because of atherosclerotic plaque blocks coranary arteries causing accumulation of lactic acid

Question 29

if delivered o2 is adequate for energy needs

Answer 29

aerobic respiration

Question 30

if o2 is not adequate for energy needs

Answer 30

anaerobic respiration

Question 31

treatments for myocardial infarction

Answer 31

vasodilator
angiplasty with stents
coronary bypass
clot busting enzymes such as T-pa

Question 32

heart valves and structures

Answer 32

atrioventricular valves

semilunar valves

Question 33

atrioventricular valves

Answer 33

tricuspid valves
mitral valve
papillary muscles
chordae tendenae

Question 34

semilunar valves

Answer 34

aortic valve

pulmonary valve