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BIO 253 Exam 3 Practice Questions | 100% Correct Answers | Verified | Latest 2024 Version
what structure in skeletal muscle permits action potentials to penetrate deep into the muscle cell? - 
T-tubules 
what molecule initiates cross bridge cycling in skeletal muscle by binding to troponin? - Ca++ 
the link between actin and myosin in skeletal muscle is broken when the myosin head binds a molecule 
of ____ - ATP 
During skeletal muscle contractions, factor(s) that influence whole muscle tension are ____, _____, ____ 
- # of motor unit recruited, length of fiber at onset of contractio...