Cardiovascular System

Question 1

heart

Answer 1

muscular organ, located in the center of the thoracic cavity. has four chambers

Question 2

atria

Answer 2

two upper chambers of the heart.

Question 3

right atria recieves unoxygenated/oxygenated blood

Answer 3

unoxygenated blood returning from the body

Question 4

left atria recieves unoxygenated/oxygenated blood

Answer 4

oxygenated blood returning from the lungs

Question 5

ventricles

Answer 5

two lower chambers of the heart

Question 6

right ventricle sends oxygen poor/rich blood

Answer 6

oxygen poor blood to the lungs

Question 7

left ventricle sends oxygen poor/right blood

Answer 7

oxygen rich blood to the body

most muscular and strongest part of the heart

Question 8

the venae cavae

Answer 8

superior vena cava and the inferior vena cava.

two large veins that return blood to the heart; the right atrium

Question 9

blood flow of unoxygenated blood

Answer 9

venae cavae
right atrium
right ventricle
pulmonary arteries
lungs

Question 10

blood flow of oxygenated blood

Answer 10

lungs
pulmonary veins
left atrium
left ventricle
aorta

Question 11

valve

Answer 11

a structure two blood structures that opens and closes to permit the flow of the blood to go in the opposite direction.

between the atrium and ventricle
in the pulmonary artery
aorta

Question 12

cardiac conduction system

Answer 12

a system of specialized muscle tissues that conducts electrical impulses that stimulate the heart to beat

Question 13

Artery

Answer 13

vessel that carries blood away from the heart

Question 14

Coronary arteries

Answer 14

branch off from the aorta and supply the heart muscle with blood

Question 15

aorta

Answer 15

largest artery in the body.

begins at the left ventricle
goes through the thoracic and abdominal cavities
splits into iliac arteries at the end of the navel

Question 16

pulmonary artery

Answer 16

begins at the right ventricle, carries o2 poor blood to the lungs

Question 17

carotid arteries

Answer 17

major arteries of the neck

main supply of blood to the head

one on each side of the neck

Question 18

Femoral artery

Answer 18

major aretery of the thigh

major source of blood supply to the thigh and the leg

Question 19

Brachial artery

Answer 19

in the upper arm, the site of pulse checking during infant CPR

Question 20

Radial Artery

Answer 20

artery of the lower arm, the artery felt when taking the pulse at the thumb side of the wrist

Question 21

Posterior tibial artery

Answer 21

artery supplying the foot, behind the medial ankle

Question 22

Dorsalis pedis artery

Answer 22

lies on the top (dorsal position) of the food, lateral to the large tendon of the big toe

Question 23

Arteriole

Answer 23

smallest brance of an artery

Question 24

Capillaries

Answer 24

tiny blood vessels, thinn walled, where the o2/co2 nutrient/waste exchange with the body’s cell takes place

Question 25

pulmonary vein

Answer 25

carries oxygenated blood from the lungs to the left atrium of the heart