anatomy of heart

Question 1

superior/inferior vena cava

Answer 1

drains deoxygenated blood from the body

Question 2

pulmanory arteries

Answer 2

sends deoxygenated blood from heart to lungs
- 5 arteries

Question 3

pulmanory veins

Answer 3

returns oxygenated blood from lungs to heart
- 4 veins

Question 4

aorta

Answer 4

delivers oxygenated blood to the body
- 3 branches from aortic trunk

Question 5

heart muscle

Answer 5

myocardium
- never tires

Question 6

aorta arch

Answer 6

branch into brachiocephalic trunk and the left common carotid/subclavian artery

Question 7

tricuspid valve

Answer 7

right AV valve

Question 8

bicuspid valve

Answer 8

left AV valve

Question 9

chordae tendae

Answer 9

orientate the valves flaps by action of papillary muscles

Question 10

semilunar valves

Answer 10

no chordae tendae since they do not need to be pulled open

Question 11

damaged valves or chordae tendae

Answer 11

backflow of blood

Question 12

location of heart

Answer 12

middle of mediastinum

Question 13

trabeculae carnae

Answer 13

increases flow of blood

Question 14

fossa ovalis

Answer 14

foetal development
- right to left atrium blood flow

Question 15

left ventricle thickness

Answer 15

3x thicker for systematic circulation

Question 16

septomarginal trabecula

Answer 16

allows for quicker contraction

Question 17

right lung lobe

Answer 17

3

Question 18

left lung lobe

Answer 18

2