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Cardiovascular System: Heart Flashcards | StudBud
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Cardiovascular System: Heart
Cardiovascular System: Heart
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Anatomy & Physiology of the human body. Circulatory System.
Flashcards
27 cards
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27
Answers
1
This is the AV valve between the left atrium and left ventricle.
pulmonary valve
bicuspid valve
tricuspid valve
semilunar valve
2
Frank-Starling law of the heart involves
hypertension
afterload
preload
contractility
3
What is the other name for the mitral valve?
aortic valve
pulmonary valve
bicuspid valve
tricuspid valve
4
During ventricular filling, the AV valves are _______, and the semilunar valves are _______.
open; closed
open; open
closed; open
closed; closed
5
This is the SL valve between the left ventricle and the aorta.
aortic valve
mitral valve
pulmonary valve
bicuspid valve
6
This is the pacemaker of the heart.
sinoatrial node
purkinje fibers
atrioventricular node
bundle of his
7
This chamber is the start of systemic circulation
left ventricle
right ventricle
right atrium
left atrium
8
This is the AV valve between the right atrium & right ventricle.
pulmonary valve
aortic valve
bicuspid valve
tricuspid valve
9
The pressure against which the heart must work to eject blood during systole.
Contractility
Afterload
Hypertension
Preload
10
Which cardiac chamber has the thickest myocardium?
Right atrium
Right ventricle
Left atrium
Left ventricle
11
This is innermost lining of the heart
serous membrane
dense regular connective tissue
cardiac muscle
endothelium
12
The first heart sound, "lubb," marks the point when __________.
the atrioventricular valves closed
blood fills the ventricles
blood fills the atriums
the atrioventricular valves open
13
This is the wall that separates the two sides of the heart.
Septum
AV Node
Bundle of His
S.A. Node
14
The QRS complex represents __________.
atrial depolarization
ventricular depolarization
ventricular repolarization
atrial repolarization
15
Which of the following does
NOT
decrease heart rate?
Anxiety
Hypoxia
Stimulation by the cardiac accelerator nerve
Stimulation by the vagus nerve
16
SL valve located between the right ventricle and the pulmonary artery.
Mitral Valve
Bicuspid Valve
Tricuspid Valve
Pulmonary Valve
17
The innermost layer of the heart.
visceral pericardium
myocardium
endocardium
epicardium
18
This delivers de-oxygenated blood from the legs & lower extremities.
coronary sinus
jugular vein
inferior vena cava
superior vena cava
19
Which of the following does
NOT
increase stroke volume?
Increased force of contraction of the ventricles
Increased end diastolic volume
Parasympathetic stimulation
Increased venous flow to the heart
20
Site of hemopoiesis
red bone marrow
diaphysis
yellow bone marrow
lacunae
21
SV x HR
equals
EDV − ESV
venous return
cardiac output
cardiac cycle
22
This blood vessel receives oxygenated blood from the left ventricle.
Superior Vena Cava
Carotid Artery
Jugular Vein
Aorta
23
Stroke volume
is defined as __________.
the blood ejected from ventricles during ventricular systole
the blood pumped out of both ventricles in 1 minute
the blood that fills the ventricles at the end of systole
the blood remaining in the ventricles following systole
24
The stroke volume of the heart ↑ in response to an ↑ in venous return to the heart
Frank-Starling law of the heart
Boyle's law
Starling's law of the capillaries
Henry's law
25
This chamber is the start of pulmonary circulation
left ventricle
right atrium
left atrium
right ventricle
26
This delivers de-oxygenated blood from the upper body and the head to the right atrium
Superior Vena Cava
Superior Aortic Valve
Inferior Sentinel Cava
Inferior Vena Cava
27
This is the membranous protective sac that surrounds the heart.
pleura
peristalsis
perimetrium
pericardium
