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Vitek1552 [10]
3 years ago
5

1. Skeletal muscle fibers do not have gap junctions, but heart muscle cells do. Why do you think there is this difference? In ot

her words: Why would it be bad to connect skeletal muscle fibers with gap junctions?
2. What is the benefit of having gap junctions in the heart?
Biology
1 answer:
Mumz [18]3 years ago
4 0
<h2>Gap junctions </h2>

Explanation:

  • Skeletal muscle also called as voluntary muscle, is anchored to bone by tendons and is used to effect skeletal movement in activities such as locomotion and maintaining posture
  • Muscle associated with heart is called cardiac muscle is also an involuntary muscle but is more akin in structure to skeletal muscle
  • Both cardiac and skeletal muscles are striated, they contain sarcomeres and are packed into highly regular, repeating arrangements of bundles
  • Skeletal muscle do no have gap junctions because they are not single cells
  • The gap junctions, which are protein-lined tunnels, allow direct transmission of the depolarizing current from cell to cell, across the chambers of the heart, so that the cells contract in unison
  • Because of the way these gap junctions function, the cardiac muscle cells are said to be electrically coupled
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