Smooth Muscle Flashcards
1
Q
Describe smooth muscle
A
- Fusiform cell shape
- Contains a centrally located and elongated nucleus.
- No sarcomeres; No striations
- Gap junctions
- No T-Tubule; Caveolae instead
2
Q
What is the role of smooth muscle dense bodies?
A
They anchor actin filaments.
3
Q
Whats the difference in cross-bridge cycling between smooth and skeletal muscle?
A
Cross-bridge cycling is regulated by myosin because there is NO TROPONIN in smooth muscle.
