Tissue repair refers to the process of restoration of the tissue organization, as well as the recovery of its function, after an injury. This process (tissue repair) occurs naturally in the damaged tissues after injury.
- The sequential steps for the tissue repair are as follow:
- Platelets from torn vessels form a mesh-like clot that prevents blood loss.
- Inflammation occurs in the area as tissue repair begins.
- Mast cells release histamine that dilates blood vessels and increases blood flow to the repair site, further promoting clot formation.
- Neutrophils and macrophages consume bacteria and remove damaged tissue and debris.
- Fibroblasts build new tissue by secreting collagen that takes the shape of the original tissue.
- The tissue created by fibroblasts matures and regains its normal function.
- Platelets are tiny blood cells that act as a healer of damaged tissues by forming clots capable of stopping bleeding.
- Inflammation in tissue repair is caused by the induction of chemokines and pro-inflammatory cytokines at the site of the injury.
- Mast cells act to enhance acute inflammation, promote angiogenesis and skin scarring.
- Neutrophils and macrophages are blood cells that phagocytose and kill harmful pathogenic microorganisms at the site of the injury.
- Fibroblasts act to break down the fibrin clot, helping to the healing process.
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Chicken, mouse, sheep, baboon, human
Answer:
Skeletal muscle stores glycogen because it is a heavy consumer of energy.
Explanation:
Skeletal fiber contractions are based on different physiological and biochemical phenomena that happen in every cell and that need an amount of energy to occur. During muscle contraction, <em>myosin binds to the uncovered actin-binding sites, producing littles power strokes that, continuously, lead to muscle contraction</em>. To make this process possible, the muscle needs energy.
Glycogen is a very important energetic reserve polysaccharide for animals. It is stored in the liver and muscles, and when the organism needs energy it degrades glycogen into glucose, which is an available form for the metabolism. In the liver,<em> glycogen</em> is used to maintain constant levels of <em>blood glucose</em>. While in muscles, glycogen plays an important role in the glucose storage as a source of energy, needed and used only for contraction.
During muscle contraction, ATP molecules obtained from glucose are split to ADP and inorganic phosphate.
Answer:
10%
Explanation:
there is a the rule that only 10% of the energy is transferred from one trophic level to the other.
this means that only 10% of the food an organism eats is passed onto the next organism. eg only 10% of the energy in a plant is transferred to a rabbit that eats the plant. After that if a wolf eats the rabbit only 10% of the energy of food will pass on to the wolf.
