Bio 219: Lab 14: The Heart

Front 1

Locate the Brachiocephalic trunk

Back 1

Front 2

Locate the Superior vena cava

Back 2

Front 3

Locate the Right pulmonary artery

Back 3

Front 4

Locate the Ascending aorta

Back 4

Front 5

Locate the Pulmonary trunk

Back 5

Front 6

Locate the Right pulmonary veins

Back 6

Front 7

Locate the Right atrium

Back 7

Front 8

Locate the Right coronary artery

Back 8

Front 9

Locate the Right ventricle

Back 9

Front 10

Locate the Inferior vena cava

Back 10

Front 11

Locate the Left common carotid artery

Back 11

Front 12

Locate the Left subclavian artery

Back 12

Front 13

Locate the Aortic arch

Back 13

Front 14

Locate the Ligamentum arteriosum

Back 14

Front 15

Locate the Left pulmonary artery

Back 15

Front 16

Locate the Left atrium

Back 16

Front 17

Locate the Auricle

Back 17

Front 18

Locate the Left coronary artery

Back 18

Front 19

Locate the Left ventricle

Back 19

Front 20

Locate the apex

Back 20

Front 21

Locate the aorta

Back 21

Front 22

Locate the left pulmonary artery

Back 22

Front 23

Locate the Auricle of the left atrium

Back 23

Front 24

Locate the left atrium

Back 24

Front 25

Locate the left ventricle

Back 25

Front 26

Locate the apex

Back 26

Front 27

Locate the superior vena cava

Back 27

Front 28

Locate the right pulmonary artery

Back 28

Front 29

Locate the right pulmonary veins

Back 29

Front 30

Locate the Right atrium

Back 30

Front 31

Locate the Inferior vena cava

Back 31

Front 32

Locate the Right coronary artery

Back 32

Front 33

Locate the Coronary Sinus

Back 33

Front 34

Locate the Right ventricle

Back 34

Front 35

Locate the superior vena cava

Back 35

Front 36

Locate the Pulmonary trunk

Back 36

Front 37

Locate the right atrium

Back 37

Front 38

Locate the right pulmonary veins

Back 38

Front 39

Locate the fossa ovalis

Back 39

Front 40

Locate the Tricuspid valve

Back 40

Front 41

Locate the right ventricle

Back 41

Front 42

Locate the chordae tendineae

Back 42

Front 43

Locate the Inferior vena cava

Back 43

Front 44

Locate the aorta

Back 44

Front 45

Locate the left pulmonary artery

Back 45

Front 46

Locate the left atrium

Back 46

Front 47

Locate the left pulmonary veins

Back 47

Front 48

Locate the mitral (bicuspid) valve

Back 48

Front 49

Locate the aortic valve

Back 49

Front 50

Locate the pulmonary valve

Back 50

Front 51

Locate the left ventricle

Back 51

Front 52

Locate the papillary muscle

Back 52

Front 53

Locate the Interventricular septum

Back 53

Front 54

Aortic stenosis - Systolic or diastolic?
List the cause and characteristic sounds

Back 54

systolic
Cause: turbulent blood flow through the narrowed aortic valve as blood is ejected from the left ventricle
Characteristic Sound: WOOSH

Front 55

Mitral valve prolapse - Systolic or diastolic?
List the cause and characteristic sounds

Back 55

systolic
Cause: blood regulates back from left ventricle into left atrium during systole.
Characteristic Sound: LUB-WOOSH-DUP

Front 56

Aortic regurgitation (aortic insufficiency) - Systolic or diastolic?
List the cause and characteristic sounds

Back 56

diastolic
Cause: aortic valve doesn't close completely, blood flows back from the aorta into the left ventricle during diastole
Characteristic Sound: LUB-DUP-WOOSH

Front 57

What are AV (Atrioventricular Valves)?

Back 57

• prevent back flow into atria when ventricles contract
• chordae tendineae anchor AV valves to papillary muscles (prevent prolapse)

Front 58

What are SL (Semilunar Valves)?

Back 58

• prevent back flow of blog into the ventricles

Front 59

Pathway of blood

Back 59

Right atrium → Right AV valve → right ventricle → pulmonary valve → pulmonary arteries → lungs → pulmonary veins → left atrium → left AV valve → left ventricle → Aortic SL valve → aorta → systemic circulation