Heart lecture
Presentation
•
Science
•
12th Grade
•
Practice Problem
•
Easy
Standards-aligned
Whitney Bass
Used 28+ times
FREE Resource
47 Slides • 20 Questions
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4
Multiple Choice
Which layer of the heart is directly responsible for the contraction of the heart muscle?
Epicardium
Endocardium
Myocardium
Pericardial sac
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6
7
Labelling
Drag the correct labels to their location on the heart. Place the terms on the numbers.
Superior vena cava
Inferior vena cava
Left ventricle
Left atrium
Pulmonary artery
Aorta
Right ventricle
Pulmonary veins
Right atrium
8
Labelling
Drag the correct labels to their location on the heart. Place the terms on the numbers.
Tricuspid valve
Aortic semilunar valve
Pulmonary semilunar valve
Bicuspid valve
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10
Fill in the Blanks
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12
Match
Match the following.
cone shaped muscles that anchor chordae tendineae
ridges of myocardium in the ventricular walls
fibrous cords that anchor valves between the atria and ventricles
ridges of myocardium in the atrial walls
Papillary Muscles
Trabeculae Carneae
Chordae Tendineae
Pectinate Muscles
Papillary Muscles
Trabeculae Carneae
Chordae Tendineae
Pectinate Muscles
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15
Multiple Choice
Which of the following valves is also known as the bicuspid valve?
Mitral valve
Tricuspid valve
Aortic valve
Pulmonary valve
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19
Multiple Choice
Which of the following statements about heart sounds is correct?
The first heart sound occurs when AV valves close.
The second heart sound occurs when AV valves open.
Murmurs are normal heart sounds.
Stenosis is due to leaky valves.
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Match
Match the following
takes oxygen poor blood away from the heart to the lungs
takes oxygen rich blood away from the heart to the whole body
brings oxygen poor blood from the body back to the heart and empties into the right atrium
brings oxygen rich blood back to the heart from the lungs and empties into the left atrium
Pulmonary Artery
Aorta
Superior and Inferior Vena Cavas
Pulmonary Veins
Pulmonary Artery
Aorta
Superior and Inferior Vena Cavas
Pulmonary Veins
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Reorder
List the pathway of blood through the right side of the heart.
right atrium
tricuspid valve
right ventricle
pulmonary semilunar valve
pulmonary artery
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Reorder
List the pathway of blood through the left side of the heart.
left atrium
bicuspid valve
left ventricle
aortic semilunar valve
aorta
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29
Fill in the Blanks
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32
Multiple Choice
Which of the following is NOT a characteristic of cardiac muscle contraction?
It is self-excitable (automaticity).
It contracts as a unit due to intercalated discs and gap junctions.
It has a long absolute refractory period.
It is prone to fatigue.
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34
Multiple Choice
Which ion movement is primarily responsible for the plateau phase of the myocardial action potential?
Na+
K+
Ca2+
Cl-
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Reorder
Put the heart conduction sequence in order.
SA node
AV node
AV bundle (bundle of His)
AV bundle branches
Purkinje fibers
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Match
Match the following.
atrial depolarization (atria contract)
ventricular depolarization and atrial repolarization (atria relax, ventricles contract)
ventricular repolarization (ventricles relax)
P wave
QRS complex
T wave
P wave
QRS complex
T wave
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Match
Match the following
missing P wave
fast irregular atrial contractions
fast irregular ventricle contractions
no electrical activity
SA node block (nodal rhythm)
Atrial fibrillation (A-fib)
Ventricular fibrillation
Asystole
SA node block (nodal rhythm)
Atrial fibrillation (A-fib)
Ventricular fibrillation
Asystole
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Open Ended
How could an athlete have a lower resting heart rate, but still have a larger cardiac output than an inactive person?
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58
Multiple Choice
Resting heart rate under parasympathetic nerve control is called
cardiac output
vagal tone
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Multiple Choice
Which of the following does NOT increase heart rate?
increased blood carbon dioxide levels causing the blood to become acidic (acidosis)
release of epi/norepinephrine or thyroid hormones
high blood pressure
caffeine and nicotine
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Open Ended
Why does tachycardia (fast heart rate) reduce stroke volume?
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