no, they need ATP
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.
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.
Smooth muscle cells are similar to skeletal muscle cells due to the actin-tropomyosin interactions. These interactions "tell" the muscle when to contract.
A skeletal muscle
Glycerinated muscle can shorten when ATP is present, allowing myosin cross-bridges to form and generate force. However, once ATP is depleted or unavailable, glycerinated muscle cannot shorten as it lacks the energy to power the cross-bridge cycling.
Basically, yes. All muscle (skeletal, cardiac and smooth) are made of muscle fibers.
The structure responsible for storing calcium in skeletal muscle fibers at rest is the sarcoplasmic reticulum. This organelle regulates the release of calcium ions during muscle contraction to trigger the muscle fiber to contract.
Motor neurons meet the muscle cells at neuromuscular junctions. Neurotransmitters are passed from the nerve across a synaptic cleft to the muscle to make it contract. Any damage to this nerve will mean that those cells will not contract (move).
You have three types of muscle fibers. 1) Skeletal muscle fibers. 2) Cardiac muscle fibers. 3) Smooth muscle fibers.
You have three types of muscle fibers. 1) Skeletal muscle fibers. 2) Cardiac muscle fibers. 3) Smooth muscle fibers.
You have three types of muscle fibers. 1) Skeletal muscle fibers. 2) Cardiac muscle fibers. 3) Smooth muscle fibers.