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Biol 215 > Cardio Vascular System: Heart Chapter 20 > Flashcards

Cardio Vascular System: Heart Chapter 20 Flashcards

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1
Q

Functions of the heart

A
  1. Generate blood pressure
  2. Routing Blood
  3. One way blood flow through valves
  4. Regulating Blood supply
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2
Q

Pulmonary Circuit is on the ____ side and carries _______ blood in to the ____

A

right, deoxygenated, lungs

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3
Q

Systemic Circuit is on the _____ side and carries ______ blood out to the _____

A

left, oxygenated, tissues

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4
Q

The heart is the size of a

A

closed fist

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5
Q

The ____ is at the top

A

base

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6
Q

The ______ is at the bottom

A

apex

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7
Q

The heart is located in the ______ in the ______ cavity

A

mediastinum, thoracic

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8
Q

The heart is house inside of the ________ sac

A

pericardial

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9
Q

_____ _______ provides lubrication and secrets fluid

A

serous pericardium

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10
Q

Parietal means on the ______

A

outside

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11
Q

Visceral means directly against the ____

A

organ

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12
Q

The ____ ________ is the tough outer layer anchoring force providing protection

A

fibrous pericardium

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13
Q

_________ effusion means _______ fluid in pericardial sac

A

Pericardial, excessive

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14
Q

Cardiac ________ means fluid pressing on the hear to prevent it from ______ and _______

A

Tamponade, relaxing, contract

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15
Q

________ is the outer heart surface, smooth, and slick

A

epicardium

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16
Q

_______ means cardiac muscle cell

A

myocardium

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17
Q

_______ is the inner surface

A

endocardium

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18
Q

______ muscles, mean the atrial wall

A

pectinate

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19
Q

the _________ _____ ridges and projection in the ventricles

A

trabeculae, carne

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20
Q

Pulmonary vessels consist of

A

Superior and Inferior Vena Cava

Pulmonary Trunk

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21
Q

Superior and Inferior Vena Cava

A

on the right side of the heart

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22
Q

Pulmonary Trunk

A

From right ventricles to the lungs

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23
Q

Systemic Vessels

A

Pulmonary Veins
Aorta

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24
Q

Pulmonary Veins

A

From the lungs to the left atrium

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25
Aorta
From left ventricle to body
26
Coronary Sinus is the heart muscles blood supply separate from the ________ and _______ circuit
pulmonary, systemic
27
The coronary sinus carries _________ blood into the heart ______
deoxygenated, tissue
28
The right coronary artery carries blood from the right ______ to the posterior/inferior heart
ventricle
29
The left coronary artery supplies blood to the left _______ and left _____ coronary vein
ventricle, posterior
30
The cardiac veins transport ______ blood from the ______ arteries into the ______ atrium
deoxygenated, coronary, right
31
The cardiac veins consist of the
Great cardiac Vein Small cardiac Vein Coronary Sinus
32
The atria are separated by the _____________ septum
interatrial
33
The ____ _____ remnant of the foramen ovale (which used to exist in fetal circulous)
Fossa Ovalis
34
The _________ valves are the opening between the atria and ventricles
atrioventricular valves, atria, ventricles
35
The _________ valves are the openings between the ventricles and atrium
semilunar valves, ventricles, atrium
36
Right AV valve
Tricuspid valve
37
Left AV Valve
Bicuspid/Mitral Valve
38
Valves prevent ____ ___
back flow
39
The ____ valves are the first sound and the _____ valves are the second sound
AV, semilunar
40
Blood flow through the heart
Superior Vena Cava, Inferior Vena Cava, Coronary Sinus through the right atrium Right AV valve Right ventricle Semilunar Pulmonary Valve Pulmonary Trunk Pulmonary arteries Lungs Pulmonary Veins Left atria Left AV valve Left ventricle Aortic semilunar valve Aorta
41
What is the electrical insulation between the atria and ventricles
Plates of fibrous connective tissue
42
Plates of fibrous connective tissue act as ____ for the valves
support
43
Plates of fibrous connective tissue is a solid _____ for the heart when it contracts
anchor
44
______ and _____ work in contraction
actin and myosin
45
___________ _____ are specialized cells that provide connection
intercalated discs
46
_____ stimulation precedes _______
electrical, contraction
47
_________ relay action potentials through the heart, which spontaneously generates contraction
cardiomyocytes
48
the ____ node is known as the pace maker
SA
49
The ___ node spontaneously generates electrical pulse through the entire heart
SA
50
Electrical impulse through the heart passes through ______ ________
atrial cardiomyocytes
51
_____ node receives electrical current and slows it down a little bit giving the atrial cells time to contract
AV
52
Pathway of electrical contraction
SA node AV node AV bundle Right and left bundle branches Purjunkie fibers ALL to ventricles (apex to base)
53
_________ cells transport electrical signals
conducting
54
_______ cells stimulate and produce contraction
contractile
55
____ _______ is the difference in electrical charge across the plasma membrane
Membrane potential
56
_______ _______ means how easily ions get in and out of the membrane
membrane permeability
57
Diffusion means concentrated gradients move through concentrations from ______ to _____
high, low
58
________ is removing the polarity and the ___ charge becomes more like the ______ charge, thus both sides becoming similar in charge
Depolarization, inside, outside
59
The difference in charge across a membrane is the
polarity
60
__________ is when the Polarity is restores and where the inside and outside have ______ charges
Depolarization, different
61
_____ means FULL action potential, from depolarization to depolarization
threshold
62
When depolarization happens ____ voltage gate channel opens and ___ moves into the cell
Sodium, Na+
63
Depolarization/ Early phase means some ____ channels open and all ____ channels open producing plate
K+, Ca2+
64
Platue means maintained _______
depolarization
65
Plataue gives the heart time to ______ before contracting
relax
66
______ ________ means the voltage Ca2+ close and many K+ channels open
final repolarization
67
Cardiac muscle contraction travels from cell to cell _____ than skeletal muscle
slower
68
Cardiac muscle has ________ Ca2+ required
extracellular
69
The ___ wave measures atrial depolarization
p
70
The ____ complex measures ventricular depolarization
QRS
71
The __ wave measures depolarization of ventricles
T
72
Systole means
contraction
73
Diastole means
relaxation
74
Blood moves from ____ pressure to ____ pressure
high, low
75
Pacemaker potential is when the semilunar valves _____ and _____ are filling
shut, ventricles
76
Isovolumetric Contraction is when ______ valves shut and ventricles _____
ALL, contract
77
Period of Ejection is when ___ valves are still shut and ____ valves open and pressure is built
AV, semilunar This is the PERIOD that ESV is taken from
78
Period of Isovolumetric Relaxation is when ____ valves are shut and the ventricular volume is the _____
ALL, same
79
Passive Ventricular Filling is when ____ valves open and _____ valves stay closed and there is ______ from pressure but no contraction
AV, Semilunar, filling
80
Lubb is during the __________ _______ phase and ____ valves shut
Isovolumetric Contraction, AV
81
Dubb is during the __________ ______ phase and ______ valves shut
isovolumetric relaxation, semilunar
82

Biol 215 (3 decks)

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