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What is the name of the substance that is pumped back into the smooth er when muscle relaxes?
ATP
The myofilaments used during muscle contraction will return to their resting state when the relax?
The myofilaments return to their resting state during muscle relaxation because the calcium ions are actively pumped back into the sarcoplasmic reticulum. This process allows the tropomyosin to block the binding sites on the actin filaments, preventing further interaction with myosin. As a result, the muscle fibers lengthen, and the muscle relaxes.
What drug relaxes muscles?
Flexeril is a muscle relaxant. It is used mostly for tight or painful back muscles.
What does the cardiac muscle do in the heart?
It contracts, so the blood flows into the arteries. Then, the cardiac muscle relaxes, so the blood flows back. The backflowing blood fills the valves in the arteries, so it cannot flow back into the heart itself. While the cardiac muscle relaxes, new blood flows into the ventricles and atriums from other veins.
What do cardiac muscles do in the heart?
It contracts, so the blood flows into the arteries. Then, the cardiac muscle relaxes, so the blood flows back. The backflowing blood fills the valves in the arteries, so it cannot flow back into the heart itself. While the cardiac muscle relaxes, new blood flows into the ventricles and atriums from other veins.
where in the muscles would you find triceps?
They are the opposite muscle to the biceps. If you bend your arm to make the muscle on the top (the biceps) bulge, the muscle on the bottom (the triceps) relaxes. The triceps is on the back of your arm, and is used to straighten the elbow.
What kind of muscle tissue would you find in the blood vessels?
Arteries have smooth muscle in their walls. The smaller the artery is, the less muscle is found. Veins have none, they count on the skeltal muscles to move blood back to the heart. The veins also have valves which prevent back flow.
What is the correct sequence of events for muscle contractions?
Muscle contractions begin with an action potential traveling down a motor neuron to the muscle fiber. This signal triggers the release of calcium ions from the sarcoplasmic reticulum, which bind to troponin and initiate the sliding of actin and myosin filaments, leading to muscle contraction. Finally, the muscle relaxes when the calcium ions are pumped back into the sarcoplasmic reticulum.
Function of smooth muscle is to provide?
Smooth muscle is involuntary. That means it works automatically and you have no direct control over it. Smooth muscle is found in the digestive system and helps push food through the stomach and intestines. It is also found in the blood veins and keeps blood flowing back toward the heart.
Where does the blood get pumped from the body and back where?
Blood is pumped out of heart. It comes back to the heart. This circle goes on.
Why it is possible for you to extend your arm all the way and then curl it right back up toward your body if muscles can only pull?
Short Answer - No Long Answer - When your bones are still made out of cartilage I suppose it could be, but you're extremely young then & it could mess up how your body will form. After that age then no, unless you're somehow made of rubber or something weird.
Name a skeletal muscle in the leg?
The thigh has three sets of strong muscles: the hamstring muscles in the back of the thigh, the quadriceps muscles in the front, and the adductor muscles on the sides.
