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WorksheetsMuscles + Cardio
Total questions: 20
Worksheet time: 10mins
The basic properties of a muscle are
Excitability, Contractility, Extensibility, Elasticity
Contractility, Flexibility, Motion, Shape
Multinucleated, Striated, Voluntary, Elastic
Excitability, Type, Function, Elasticity
Active sites on actin become available for binding when
Actin binds to troponin
Troponin binds to tropomyosin
Calcium binds to troponin
Calcium binds to tropomyosin
Muscle stem cells are known as
Sarcomeres
Myosatellite cells
Myocytes
Muscular regenerator cells
The theory that explains muscle contraction is formally known as the _________.
Sliding filament theory
Muscle contraction theory
Striated voluntary muscle theory
Rotating myosin head theory
Which type of muscle fiber arrangement is this?
Pennate
Parallel
Circular
Convergent
A muscle that provides the major force for producing a specific movement is called a(n)
Synergist
Agonist
Antagonist
Fixator
The is a layer of dense irregular connective tissue surrounding the entire skeletal muscle is the
Epimysium
Perimysium
Endomysium
Fascicle
What is the correct path through the circulatory system which describes the passage of blood originating in the left leg?
Vena cava → left atrium → right atrium → lungs → left ventricle → right ventricle → aorta
Vena cava → right atrium → left atrium → lungs → right ventricle → left ventricle → aorta
Vena cava → left atrium → left ventricle → lungs → right atrium → right ventricle → aorta
Vena cava → right atrium → right ventricle → lungs → left atrium → left ventricle → aorta
All the veins of the systemic circulation eventually drain into the
Superior vena cava
Inferior vena cava
Coronary sinus
Superior and inferior vena cava
Superior and inferior vena cava and coronary sinus
The arteries that directly feed into the capillary beds are called
Muscular arteries
Elastic arteries
Arterioles
Venules
Most of the cardiac muscle of the heart is found in the
Endocardium
Epicardium
Myocardium
Pericardium
The only vein in the body that transports oxygen-rich blood is the
Coronary vein
Hepatic portal vein
Pulmonary vein
Aortic vein
Individuals with type AB blood can receive blood from donors possessing
Type A blood
Type AB blood
Type B blood
Type O blood
All of the above
If the papillary muscles fail to contract,
Blood will not enter the atria
The ventricles will not pump blood
The AV valves will no close properly
The aortic and pulmonary valves will ot open
The two main branches of the right coronary artery (RCA) are the
Circumflex branch and the left marginal branch
Anterior interventricular branch and the anterior left descending branch
Right marginal branch and the posterior interventricular branch
Great and middle cardiac veins
A blockage in the pulmonary trunk would first affect which heart chamber with buildup
of blood?
Left ventricle
Right ventricle
Right atrium
Left atrium
The pacemaker cells of the heart are located in
The wall of the left ventricle
The Purkinje fibers
The SA node
Both the left and right ventricles
This branch continues toward the apex of the heart within the interventricular sulcus.
Posterior interventricular branch
Right marginal branch
Middle cardiac vein
Coronary sinus
In the layers of the blood vessel wall, the tunica media of the artery is ___________ the vein.
Thicker than
Thinner than
The same as
Which valve is indicated by the black arrow?
Pulmonary
Bicuspid (mitral)
Tricuspid
Aortic
