Flashcards in Muscles Deck (7)
What are contractions caused by?
The sliding of actin and myosin filaments pas each other within cells
-Walls of blood vessels
-Connected to each other through junctions that allow electrical impulses to pass
-Under control of the autonomic nervous system
How does smooth muscle contract?
In response to action potentials and mediated by actin-myosin fibers
-somatic nervous system
Alternating light and dark bands caused by overlapping strands of myosin protein filaments that slide past thin actin protein filaments during contraction
section of actin and miyosin filaments that form contractile unites within each muscle cell