Ch 19-20 Test

Question 1

which blood vessel returns blood to the heart

Answer 1

veins

Question 2

what’s the purpose of valves

Answer 2

prevent blood from flowing backward

Question 3

these are smaller vessels taking blood to the heart

Answer 3

venules

Question 4

this vessel brings blood back to the heart from the upper portion of the body

Answer 4

superior vena cava

Question 5

this is the pacemaker of the heart

Answer 5

SA node

Question 6

this portion of the conduction system of the heart has a slight pause before continuing the impulse

Answer 6

AV node

Question 7

which blood vessel is built for exchange of materials

Answer 7

capillaries

Question 8

which part of an EKG indicates ventricular repolarization

Answer 8

T wave

Question 9

layer of a blood vessel that helps with reducing friction for blood

Answer 9

tunica intima

Question 10

which is most indicative of a healthy blood pressure?
- 140/85 mm Hg
- 110/50 mm Hg
- 140/70 mm Hg
- 110/70 mm Hg

Answer 10

110/70 mm Hg

Question 11

blood enters the aorta from which chamber

Answer 11

left ventricle

Question 12

membrane layer found directly on top of the heart

Answer 12

visceral pericardium

Question 13

which number is most likely indicative of high diastolic pressure?

Answer 13

110

Question 14

after returning from the lungs through the pulmonary veins, blood enters what chamber?

Answer 14

left atrium

Question 15

blood enters the aorta from which chamber

Answer 15

left ventricle

Question 16

this blood vessel is associated with the left ventricle

Answer 16

aorta

Question 17

valve between right ventricle and pulmonary trunk

Answer 17

pulmonary SL

Question 18

which blood vessel is built for exchange of materials

Answer 18

capillaries

Question 19

layer of a blood vessel that helps with protecting the interior layers

Answer 19

tunica externa

Question 20

which pathway would be found in the systemic circuit

Answer 20

left ventricle, aorta, superior and inferior vena cava

Question 21

part of the heart allowing for attachment

Answer 21

base