Flashcards in Anat Muscle Contract Vocab Deck (17):
Membranous channel that extends inward from cell membrane
Cytoplasm in muscle fiber
Membranous network of changes and tubules within a muscle fiber
Pigmented compound in muscle tissue that stores oxygen
Contractile fibers within muscle cell
Structural and functional unit of a Myofibril
Protein with actin
Myosin binding site
Myosin head binds to actin
Block muscle contraction until calcium ion are present, prevent myosin and actin from touching, long line
Functions same as Tropomyosin
Synapse btw motor neuron n skeletal muscle fiber
the attachment site that doesn't move during contraction
the attachment site that does move when the muscle contracts.
involves the return of the myosin head to its low-energy conformation. The powerstroke generates force, pulling the thin filament toward the center of the sarcomere.