CARDIOVASCULAR

Question 1

the bigger the mammal

Answer 1

the slower the heart rate

Question 2

a healthy heart rate pumps how many liters per min

Answer 2

5 liters

Question 3

What allows blood to circulate to the body

Answer 3

Blood vessels

Question 4

the cardiovascular system deliver oxygen and nutrients to remove ___

Answer 4

carbon dioxide

Question 5

Location of heart

Answer 5

thorax between lungs
apex toward to left hip

Question 6

size of heart

Answer 6

14 cm long
9cm wide

Question 7

the heart is __ pumps in ___

Answer 7

2 pumps in 1

Question 8

the right side of the heart pumps blood

Answer 8

to the lungs through and back to the left side; pulmonary circulation

Question 9

the left side of the heart pumps blood to the

Answer 9

other tissues to the body back to the right side through systematic circulation

Question 10

functions of the heart

Answer 10

generate blood pressure
routes blood
ensures one way blood flow
regulates blood supply

Question 11

pouch surrounding the heart ; double layered sac anchoring and protecting heart

Answer 11

pericardium

Question 12

2 types of pericardium

Answer 12

fibrous
serous

Question 13

outer side

Answer 13

fibrous

Question 14

inner side

Answer 14

serous

Question 15

2 layers of serous

Answer 15

parietal
visceral

Question 16

fluid between parietal and visceral layer

Answer 16

serous fluid (promote cushion)

Question 17

membrane around hearts cavity

Answer 17

parietal pericardium

Question 18

membrane on hearts surface

Answer 18

visceral pericardium

Question 19

space between parietal and visceral

Answer 19

pericardial cavity

Question 20

3 layers of heart

Answer 20

epicardium
myocardium
endocardium

Question 21

extend around heart; separate atria from ventricles

Answer 21

coronary sulcus

Question 22

extends inferiorly from coronary sulcus to the anterior surface of heart

Answer 22

anterior interventricular sulcus

Question 23

arteries goes

Answer 23

down

Question 24

veins go

Answer 24

UP

Question 25

extends inferiorly from coronary sulcus on the posterior surface

Answer 25

posterior interventricular sulcus

Question 26

pushes blood to ventricles

Answer 26

atria

Question 27

separate l & r atria

Answer 27

interatrial septum

Question 28

separates r & l ventricles

Answer 28

interventricular septum

Question 29

the atria is thin walled and ventricle is strong walled (T/F)

Answer 29

true

Question 30

valves between the atria and ventricles

Answer 30

Atrioventricular heart valves

Question 31

2 Atrioventricular valves

Answer 31

Tricuspid Bicuspid/Mitral

Question 31

valves between ventricl and artery

Answer 31

semilunar valves

Question 32

2 semilunar valves

Answer 32

Pulmonary semilunar Aortic semilunar

Question 33

semilunar valve between RV & pulmonary trunk

Answer 33

Pulmonary valve

Question 34

semilun valve between L.V and aorta

Answer 34

Aortic valve

Question 35

causes the LUBB sound

Answer 35

Atrioventricular Heart Valves

Question 36

causes the DUPP sound

Answer 36

Semilunar Heart Valves

Question 36

has fibrous rings that surround atri and semil valves; electrical insulation; provide rigid attachment site

Answer 36

Cardiac Skeleton

Question 37

supply blood to heart wall ; base of aorta

Answer 37

coronary arteries

Question 38

supply blood to anterior heart wall & left ventricle ; 3 branches

Answer 38

Left coronary artery

Question 39

the blood empties to the right atrium via the

Answer 39

coronary sinus

Question 40

drains blood from cardiac muscle

Answer 40

cardiac veins

Question 40

surface of the heart ; connective tissue layer ; parietal

Answer 40

epicardium

Question 41

thick middle layer of cardiac ; cardiac muscle

Answer 41

myocardium

Question 41

smooth inner surface of heart ; endothelium

Answer 41

endocardium

Question 42

changes in membrane channels permeability; produce action potentials

Answer 42

pacemaker potential

Question 42

how many seconds does skeletal / cardiac muscle action potentials take?

Answer 42

2msec for skel 200-500 msec for cardiac

Question 43

record of electrical events in heart ; cardiac abnormalities ; electrodes

Answer 43

Electrocardiogram

Question 44

ECG contains

Answer 44

P waves QRS complex T waves

Question 45

atrial contraction

Answer 45

P wave

Question 46

ventricular contraction

Answer 46

QRS complex

Question 47

Ventricular relaxation

Answer 47

T wave

Question 48

Systole = Diastole =

Answer 48

contraction relaxation

Question 49

volume of blood pumped per ventricle per contraction

Answer 49

Stroke volume

Question 50

Stroke volume mililiter/beat

Answer 50

70 milliliters/beat

Question 51

heart rate : beats/min

Answer 51

72

Question 52

volume of blood pumped by a ventricle

Answer 52

Cardiac output 6 liters /min

Question 53

formula of cardiac output

Answer 53

CO = SV x HR

Question 54

hormones that can increase heart rate

Answer 54

Epinephrine thyroxine

Question 55

sympathetic nervous system is an

Answer 55

increase of heart rate

Question 56

parasympathetic nervous system is an

Answer 56

decrease of heart rate

Question 57

highblood pressure is an

Answer 57

decrease of heart rate

Question 58

connects arteriole to venule

Answer 58

Vascular shunt

Question 59

the exchange of vessels ; oxygen & nutrients cross

Answer 59

True capillaries

Question 60

pressure wave of blood

Answer 60

pulse

Question 61

mechanisms contained within the heart that control cardiac output

Answer 61

Instrinsic regulatiion

Question 62

amount of blood that returns to heart

Answer 62

venous return

Question 63

degree of ventricular walls stretched at diastole

Answer 63

Preload

Question 64

pressure on which ventricles mus pump blood

Answer 64

after load

Question 65

mechanism of nervous system; role in regulating heart function

Answer 65

Baroreceptor reflex

Question 66

the baroreceptor monitors:

Answer 66

blood pressure in aorta & carotid arteries