Question

The muscles showing slow and prolonged contractions are ________.

Answer 1

Smooth muscles:

1. Smooth muscle is a form of muscle tissue that is utilized to exert pressure on veins and organs by numerous systems.
2. Sheets or strands of smooth muscle cells make up smooth muscle.
3. Smooth muscles come in a variety of shapes and sizes, and they all have various (action) potentials and contractions.
4. The slow attachment and detachment of the cross-bridges with the actin filaments causes the slow commencement of smooth muscle contraction as well as its sustained contraction.
5. Furthermore, contractions in response to calcium ions are initiated much more slowly than in skeletal muscle.

Final Answer: The muscles showing slow and prolonged contractions are smooth muscles.