Chapter 10 HW

Question 1

Arteriole is what type of artery

Answer 1

Resistance

Question 2

Right atrium

Answer 2

Blood enters into this heart structure from the superior and inferior vena cavae

Question 3

Left atrium

Answer 3

Blood enters into when it returns to the heart from the lungs

Question 4

Aortic valve

Answer 4

Blood is forced through this when leaving the left ventricle

Question 5

Left ventricle

Answer 5

Blood leaves the left atrium and enters this chamber of the heart

Question 6

Bicuspid valve

Answer 6

Blood leaves the left atrium through this valve

Question 7

Aorta

Answer 7

Blood leaves the left ventricle and travels to this structure

Question 8

Tricuspid valve

Answer 8

Blood leaves the right atrium and passes through this balance to get to the right ventricle

Question 9

Deoxygenated blood enters the heart from the body through what structure

Answer 9

Superior and inferior vena cavae

Question 10

Pulmonary circulation

Answer 10

CO2 is unloaded and O2 is loaded

Question 11

Systemic circulation

Answer 11

CO2 is loaded and O2 is unloaded

Question 12

Which type of valve separates the atria from the ventricle

Answer 12

Atrioventricular valve

Question 13

Which structure does the pulmonary trunk split into, taking blood to the lungs

Answer 13

Pulmonary arteries

Question 14

Pacemaker of the heart

Answer 14

Sinoatrial node

Question 15

Sequence of vessels that blood travels as it leaves the heart

Answer 15

Aorta, arteries, arterioles, capillaries, venules, veins, vena cavae

Question 16

What’s in the endocardium

Answer 16

Tissue that lines the heart’s four chambers

Question 17

Function of capillaries

Answer 17

Exchange fluids and other materials between the tissues and the blood

Question 18

Function of the tendinous chords

Answer 18

Attach the valve to the papillary muscle

Question 19

Function of tunica externa

Answer 19

Anchors the vessel to surrounding tissue

Question 20

Function of tunica interna

Answer 20

Secretes a chemical to repel platelets so blood can easy flow through the vessel

Question 21

Pericardium

Answer 21

A fluid-filled, double walled membrane that surrounds the heart

Question 22

Intercalated discs in cardiac muscle tissue purpose

Answer 22

Intercalated discs allow atrium or ventricles to contract simultaneously, intercalated discs allow fast electrical transmission between cells

Question 23

Smallest blood vessel

Answer 23

Capillary

Question 24

Structure that carries the electrical impulse from the AV node toward the apex of the heart

Answer 24

Atrioventricular bundle

Question 25

What structure fans out from the end of the AV bundle to the wall of the ventricles

Answer 25

Purkinje fibers

Question 26

External structure that marks the separation of the atria from the ventricles

Answer 26

Coronary sulcus

Question 27

What structure returns blood from the lungs to the heart

Answer 27

Pulmonary veins

Question 28

What structure sends the electrical impulse to stimulate the ventricles to contract

Answer 28

Atrioventricular node

Question 29

What structure separates the right ventricle from the left ventricle

Answer 29

Interventricular septum

Question 30

What structure takes oxygenated blood from the heart to the rest of the body

Answer 30

Aorta

Question 31

Cardiac output

Answer 31

Describes the amount of blood ejected by each ventricle each minute

Question 32

Stroke volume

Answer 32

Describes the amount of blood ejected from the ventricle per beat

Question 33

Preload

Answer 33

Describes the amount of tension in the myocardium of the ventricular wall

Question 34

Cardiac reserve

Answer 34

Describes the difference between the cardiac output of a heart at rest and the maximum cardiac output the heart can achieve

Question 35

Afterload

Answer 35

Describes the pressure in the pulmonary trunk and aorta during diastole

Question 36

Conducting artery

Answer 36

Carries blood away from the heart

Question 37

Anastomoses circulation

Answer 37

Involves vessels merging together

Question 38

What vein drains the lower body, essentially everything below the diaphragm

Answer 38

Inferior vena cava

Question 39

Tunica interna

Answer 39

Blood vessel layer composed of simple squamous epithelial tissue and fibrous blood issue

Question 40

Which chambers in the heart pump blood

Answer 40

Ventricles

Question 41

Which chambers in the heart receive blood

Answer 41

Atria

Question 42

Electrocardiogram

Answer 42

Diagnostic test that records the heart’s electric activity

Question 43

Ultrasound

Answer 43

Diagnostic tool that uses sound waves to visualize the heart

Question 44

Varicose veins

Answer 44

Disorder caused by dysfunctional valves in the veins that allow the back flow and pooling of blood, resulting in enlarged veins

Question 45

Anatomical structures of the heart combining forms

Answer 45

Ventricul/o (ventricle), pericardi/o (pericardium), atri/o (atrium)

Question 46

Arter/o

Answer 46

Artery

Question 47

Atri/o

Answer 47

Atrium

Question 48

Tachy/

Answer 48

Rapid

Question 49

Atrial systole

Answer 49

Atria depolarize and contract together creating decreased volume and higher pressure in the atria than the ventricles

Question 50

Ventricular diastole

Answer 50

Ventricles then repolarize and relax

Question 51

Adaptation that allows the heart to have oxygen readily available

Answer 51

Cardiac cells are rich in myoglobin

Question 52

Equation for calculating cardiac output

Answer 52

CO = HR x SV

Question 53

Ven/o

Answer 53

Vein

Question 54

Systole

Answer 54

Refers to contraction

Question 55

Diastole

Answer 55

Refers to relaxation

Question 56

Blood vessel that has valves to prevent back flow of blood

Answer 56

Vein

Question 57

Which wave on the ECG shows the depolarization of the atria

Answer 57

P

Question 58

Which wave on the ECG shows the depolarization of the ventricles

Answer 58

Q, R, S

Question 59

Which wave on the ECG shows the repolarization of the ventricles

Answer 59

T