6 Questions
Which type of muscle has motor units?
Skeletal muscle
What provides electrical connections between cardiac muscle cells?
Intercalated disks
What is the role of the sarcoplasmic reticulum in cardiac muscle cells?
Stores calcium ions
Which muscle type has a higher oxidative capacity due to its high density of mitochondria?
Cardiac muscle
What is the basic organization and composition of thick and thin filaments in cardiac muscle cells?
Comparable with skeletal muscle cells
How are skeletal and cardiac muscle contractions described at the cellular level?
Similar
Test your knowledge on the structural differences between skeletal and cardiac muscle cells that are relevant to contraction. Explore topics such as motor units, pacemaker cells, intercalated disks, mechanical junctions, and electrical connections.
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