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ANP
Muscle Tissue
Question | Answer |
---|---|
Forms the thick filaments of muscle | Myosin |
Major protein that forms thin filaments of muscle | Actin |
The contractile unit of a muscle cell, consisting of overlapping bundles of actin and myosin filaments | Sarcomere |
Defines the beginning and end of a sarcomere | Z-line |
Small gap that exists between the distal end of an axon and the motor end plate of a muscle fiber | Synaptic Cleft |
Found in the middle of the bundle of actin filaments | A band |
Channels connected to pores in the sarcoplasm channels | Calcium Channels |
Region composed of only thin filaments | I-band |
Released from the sarcoplasmic reticulum | Calcium ions |
Binds to troponin | Calcium ions |
Region composed of only thick filaments | H-zone |
Stretches from one end of the bundle of myosin & actin filaments to the other | Sarcomere |