Unit 8 III

Question 0

What causes the “dub” sound?

Answer 0

Semilunar valves closing

Question 1

What is a pulse?

Answer 1

An expansion and recoiling of an artery which can be palpitated

Question 2

What is stroke volume?

Answer 2

EDV-ESV=SV
measure of effectiveness of L ventricle
amnt of blood being ejected from L ventricle

Question 3

what is the blood vessel that brings blood from the head, neck, and arms into the R atrium?

Answer 3

Superior vena cava

Question 4

When taking a BP the ___ number is on top and the ___ number is on bottom

Answer 4

Systolic, diastolic

Question 5

Name the structures of cardiac conduction in order

Answer 5

SA node, AV node, AV bundle, bundle branches, perkinje fibers

Question 6

The valve between R ventricle and BV leaving the R ventricle is the ____

Answer 6

pulmonary semilunar

Question 7

The valve between the L ventricle and the bv leaving the L ventricle is the ___

Answer 7

Aortic semilunar

Question 8

The body’s entire blood supply is circulated every ___

Answer 8

One minute

Question 9

The pacemaker of the heart is the

Answer 9

SA node

Question 10

What chambers of the heart receive blood from the veins

Answer 10

Right atrium, left atrium

Question 11

The largest artery in the body extends from left ventricle and is called the

Answer 11

Aorta

Question 12

What is the name of a blood vessel that takes oxygenated blood from the lungs to the left atrium

Answer 12

Pulmonary vein

Question 13

What chambers of the heart are known as pumping chambers

Answer 13

Right ventricle, Left ventricle

Question 14

What is the name of a blood vessel that takes deoxygenated blood from the r ventricle to the lungs

Answer 14

Pulmonary trunk

Question 15

Valves are formed from the innermost layer of the heart called the

Answer 15

Endocardium

Question 16

The “lub” sound is caused by

Answer 16

AV valves closing

Question 17

Cardiac output is

Answer 17

SV x HR = CO

Question 18

Arteries

Answer 18

Carry blood away from the heart

Question 19

Veins

Answer 19

Carry blood toward the heart

Question 20

Arterioles

Answer 20

Smaller, carry toward capillaries

Question 21

Venules

Answer 21

Smaller, carry away from capillaries

Question 22

What circulation route takes deoxygenated blood to the lungs where it can pick up oxygen?

Answer 22

pulmonary

Question 23

Systole

Answer 23

Contraction

Question 24

Diastole

Answer 24

Relaxation

Question 25

Name of the blood vessel that brings venous blood from abdomen and legs into R atrium

Answer 25

Inferior vena cava

Question 26

Felt on the upper surface of the foot

Answer 26

Dorsal pedis

Question 27

Felt in the antecubital space

Answer 27

Brachial

Question 28

Felt in the groin

Answer 28

Inguinal

Question 29

Felt on the neck

Answer 29

Common carotid

Question 30

Felt on lateral side of the wrist

Answer 30

Radial

Question 31

Felt on area behind knee

Answer 31

Popliteal

Question 32

Initiates action potential

Answer 32

SA node

Question 33

Slight pause for atrial contraction

Answer 33

AV node

Question 34

Conduction nerve impulse

Answer 34

AV bundle

Question 35

Bifurcation to L and R ventricular walls

Answer 35

L/R bundle branches

Question 36

Spreads action potential superior lay throughout the ventricular walls

Answer 36

Purkinje fibers

Question 37

Heart rate is

Answer 37

The number of cardiac cycles per minute

Question 38

Tunica interna

Answer 38

Smooth inner lining made up of endothelium

Question 39

Tunica media

Answer 39

Middle layer composed of smooth muscle tissue

Question 40

Tunica externa

Answer 40

Outermost, fibrous connective tissue which provides flexibility and strength

Question 41

what is an atria?

Answer 41

Collecting chamber

Question 42

What are ventricles?

Answer 42

Pumping chambers

Question 43

AV valves:

Answer 43

Between atria and ventricle

Question 44

SL valves:

Answer 44

Between ventricle and major artery

Question 45

Functions of the heart

Answer 45

``` Transports O2 and CO2 Removes waste Thermoregulation Immunological Clotting ```

Question 46

Epicardium

Answer 46

Outermost layer

Question 47

Vena Cava

Answer 47

Blood towards right atrium

Question 48

Pulmonary

Answer 48

R ventricle to the lungs

Question 49

Aorta

Answer 49

L ventricle to body

Question 50

Atrial septum

Answer 50

Wall between atria

Question 51

Ventricular septum

Answer 51

Wall between ventricles

Question 52

Chordae tendinae

Answer 52

Strings anchoring valves prevents inversion

Question 53

Papillary muscles

Answer 53

Chordae tendinae attached, muscular projection

Question 54

mid to late diastole:

Answer 54

Atria contract, ventricles fill | AV valves open, SL valves close

Question 55

Ventricular systole

Answer 55

Ventricles contract, atria relax | AV valves close, SL open

Question 56

Early diastole

Answer 56

AV remains open, SL shut

Question 57

End Diastolic Volume/ EDV

Answer 57

Amnt of blood entering ventricle while filling

Question 58

End of systolic volume:

Answer 58

Amnt of blood left in ventricle after contracting

Question 59

Stroke volume/SV

Answer 59

amnt of blood ejected from L ventricle after each beat

Question 60

normal HR

Answer 60

60-100 beats per minute

Question 61

Lumen

Answer 61

Hollow center section, blood flows