10 Questions
What are the characteristics of the heart that it shares with skeletal muscle?
Branching fibers with similar actin and myosin arrangement
What is the role of calcium in skeletal muscle excitation/contraction coupling and contraction?
Activates the myosin-actin interaction
What separates the upper chambers of the heart?
Interatrial septum
What is the daily pumping capacity of each side of the heart?
300 gallons
What connects the cells of the heart muscle at the intercalated disks?
Gap junctions
What is the role of intercalated disks in the heart?
To connect cardiac muscle cells
What is the main similarity between the contraction mechanism of the heart and skeletal muscle?
Both have similar actin and myosin arrangement
What separates the upper chambers of the heart?
Interatrial septum
What is the daily pumping capacity of each side of the heart?
About 3000 gallons
What are the characteristics of the heart that it shares with single-unit smooth muscle?
Cells connected by gap junctions and desmosomes
Test your knowledge of the cardiovascular system with this quiz covering chapters 13 and 14. Topics include heart anatomy, physiology of skeletal muscle excitation/contraction coupling, and more. Ideal for students studying human anatomy and physiology.
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