12.3 Heart

Question 1

why is myocardium thinker in the left ventricle when compared to the right

Answer 1

the left ventricle pumps blood all throughout the body while the right ventricle pumps just close to the lungs

Question 2

where does the pulmonary trunk originate

Answer 2

right ventricle

Question 3

does the pulmonary trunk carry oxygenated or deoxygenated blood

Answer 3

deoxygenated

Question 4

what artery caries oxygenated blood from the left ventricle into the systemic circulation

Answer 4

aorta

Question 5

what are the 3 branches of the aorta

Answer 5

brachiocephalic, left common carotoid, left subclavian

Question 6

which large vein delivers blood collected from the head, neck, and arm to the right atrium

Answer 6

the superior vena cava

Question 7

what large vein delivers venous blood collected from the lower body regions to the right atrium

Answer 7

inferior vena cava

Question 8

what veins carry oyxgenated blood from the lungs to the left atrium of the heart

Answer 8

pulmonary veins

Question 9

trace the pathway of deoxygenated blood in the heart

Answer 9

venacava, or coronary sinus
right atrium
tricuspid
right ventricle
pulmonary valve
pulmonary trunk
right/left pulmonary arteries
lungs
r/l pulmonary veins
left atrium
bicuspid
left ventricle
aortic semilunar valve
aorta
body!!!