All three forms have a thin connective tissue sleeve called endomysium around each muscle cell. (Skeletal muscle, but not the others, also has perimysium and epimysium.)
All three of them contract by means of the motor proteins called myosin acting upon noncontractile filaments called actin (but there are different forms of myosin, or isoforms, in different muscle types). They all work by means of the sliding-filament mechanism.
Contraction is activated in all three muscles by calcium ions binding to a receptor protein (but the receptor in smooth muscle—calmodulin—is different from the one in skeletal and cardiac muscle—troponin).
All three forms have a thin connective tissue sleeve called endomysium around each muscle cell. (Skeletal muscle, but not the others, also has perimysium and epimysium.)
All three kinds of muscle cells have exceptional contractility, distensibility and elasticity—they’re able to stretch and shorten, without rupturing, much more than any other kind of cell, and they recoil (that’s their elasticity) when tension on them is released.
Answers & Comments
Answer:
All three forms have a thin connective tissue sleeve called endomysium around each muscle cell. (Skeletal muscle, but not the others, also has perimysium and epimysium.)
Explanation:
#BunnySquad
Answer:
All three of them contract by means of the motor proteins called myosin acting upon noncontractile filaments called actin (but there are different forms of myosin, or isoforms, in different muscle types). They all work by means of the sliding-filament mechanism.
Contraction is activated in all three muscles by calcium ions binding to a receptor protein (but the receptor in smooth muscle—calmodulin—is different from the one in skeletal and cardiac muscle—troponin).
All three forms have a thin connective tissue sleeve called endomysium around each muscle cell. (Skeletal muscle, but not the others, also has perimysium and epimysium.)
All three kinds of muscle cells have exceptional contractility, distensibility and elasticity—they’re able to stretch and shorten, without rupturing, much more than any other kind of cell, and they recoil (that’s their elasticity) when tension on them is released.
Explanation: