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What is the ion necessary in cross bridging to produce a muscle contraction is?
calcium
How is cross bridging installed in a floor system?
The top of the cross bridging is nailed to the top of the floor joist before the subfloor is installed. The bottom of the bridging is nailed in place after the subfloor is installed.
What protein with heads that attach in cross bridging?
myosin
What structures do the cross bridges attach during muscle action?
actin
A muscle that causes a desired action?
Nerve impulses that originate in the central nervous system cause muscles to contract. Muscle fiber generates tension during the action of actin and myosin cross-bridge cycling. While under tension, the muscle may lengthen, shorten, or remain the same.
What is a bridging point?
A bridging point is a place where you can cross the river easily. Yes, the above answer is correct. An example of this is the river narrowing to make crossing easier.
How do you lay out cross bridging in floor joists?
To lay out cross bridging in floor joists, first identify the spacing between the joists, typically 16 or 24 inches apart. Position the bridging diagonally between the joists, connecting them at their midpoints to provide lateral support. Use 1x3 or 1x4 lumber for the bridging, cutting it to fit snugly between the joists. Secure the bridging with nails or screws to ensure stability and reduce floor bounce.
What does calcium bind to priot to cross-bridging?
Actin changes shape.
How would the loss of acetylcholinesterase from the motor end affect skeletal muscle?
Acetylcholine release is necessary for skeletal muscle contraction, because it serves as the first step in the process, enabling the subsequent cross-bridge formation. A muscle's ability to contract depends on the formation of cross-bridges between myosin & actin filaments. A drug that blocks acetylcholine release would interfere with this cross-bridge formation and prevent muscle contraction
What muscles are worked during a cross body bicep curl exercise?
During a cross body bicep curl exercise, the biceps brachii muscle is primarily worked.
Glycerinated muscle requires the addition of what molecule to supply the energy for muscle contraction?
Glycerinated muscle requires the addition of ATP (adenosine triphosphate) to supply the energy needed for muscle contraction. ATP is essential for the cross-bridge cycling process that allows muscle fibers to contract.
Myosin cross bridges attach to active sites of?
actin filaments in muscle cells during muscle contraction.
