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What else can I help you with?
Does an acid etch damage a tile or shorten its life?
Any time you remove material (acid) you shorten the life of the original structure. By how much? That would depend on the amount of etching was done and how deep.
Tiny rods in meshworks or bundles that help cell to shorten?
Telomeres
What shortens during muscle contraction?
Uponmuscle contraction, the A-bands do not change their length (1.85 micrometer in mammalian skeletal muscle) whereas the I-bands and the H-zone shorten.The protein tropomyosin covers the myosin binding sites of the actin molecules in the muscle cell. To allow the muscle cell to contract, tropomyosin must be moved to uncover the binding sites on the actin. Calcium ions bind with troponin-C molecules (which are dispersed throughout the tropomyosin protein) and alter the structure of the tropomyosin, forcing it to reveal the cross bridge binding site on the actin. The concentration of calcium within muscle cells is controlled by thesarcoplasmic reticulum, a unique form of endoplasmic reticulum. Muscle contraction ends when calcium ions are pumped back to the sarcomere. Once Calcium goes back into the sarcoplasmic reticulum, muscle relaxation starts.During stimulation of the muscle cell, themotor neuronreleases the neurotransmitter acetylcholine which travels across the neuromuscular junction (the synapse between the terminal bouton of the neuron and the muscle cell). Acetylcholine binds to a post-synaptic nicotinic acetylcholine receptor. A change in the receptor conformation allows an influx of sodium ions and initiation of a post-synaptic action potential. The action potential then travels along T (transverse) tubules until it reaches the sarcoplasmic reticulum; the action potential from the motor neuron changes the permeability of the sarcoplasmic reticulum, allowing the flow of calcium ions into the sarcomere. The outflow of calcium allows the myosin heads access to the actin cross bridge binding sites, permitting muscle contraction.Source(s):wikipedia "sarcomere"the sarcomere is the functional unit of the muscle cellutube "sarcomere" would give you a visual Do actin and myosin shorten during muscle contraction?
Muscle beneath the frontalis and the orbicularis oculi?
Muscle located beneath the frontalis and orbicularis oculi is called corrugator muscle. It draws the eyebrow down and wrinkles the forehead vertically.
Strap like muscle that is weak thigh flexor?
Oh honey, you're talking about the sartorius muscle. It may be weak when it comes to flexing the thigh, but it sure knows how to add a little flair to your anatomy. Keep working on those squats and lunges to give that sassy sartorius the strength it deserves!
When you observe glycerinated muscle shorten what is happening microscopically?
The muscle fibres are contracting
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.
Does glycerinated skeletal muscle fibers need ATP in order to contract?
true
Does glycerinated skeletal muscle fibers nee ATP in order to contract?
no, they need ATP
Does glycerinated skeletal muscle fibers need calcium in order to contract?
Yes, glycerinated skeletal muscle fibers still require calcium in order to contract. The glycerination process maintains the basic structure of the muscle fibers but removes cellular components, allowing for the fibers to contract in response to calcium in a controlled laboratory setting.
What is muscle excursion?
The distance a muscle can shorten
What type of contraction in which the muscle fibers do not shorten are called?
If the muscle can not shorten because the muscle is trying to move a load that is greater than the force, then the contraction is isometric.
What tissue can contract or shorten?
a muscle tissue can.
What muscle can shorten?
your thigh because it can get floppy
In a concentration contraction the muscles shorten to produce movement?
True.
What type of humans body tissue can contract or shorten?
muscle tissue can contract and shorten
What muscle can do?
Muscles can contract and shorten
