The length of the frame is 14.5 inches and the width is 11.5 inches.
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.
Learn more in:
brainly.com/question/1776038?referrer=searchResults
Options are not provided in teh question. The complete question is as following:
Which of the following classes of antibodies is most likely to be made by the oldest plasma cell in a population of B cells?
a. IgM
b. IgG
c. IgA
d. None of the listed responses is correct.
Answer:
c. IgA
Explanation:
Specialized white blood cells called B lymphocytes (or B cells) contain antibodies. The mature B cells, or plasma cells, secrete millions of antibodies into the lymphatic system and the bloodstream. The plasma cell antibodies have the exact same antigen-binding site and specificity as the precursors to their B cells. Five different types of antibodies are present in humans: IgA, IgM, IgG, IgD,IgE.
In the oldest plasma cell igA classes of antobodies are present because initially plasma cells secret IgM but it switch and forms IgG, as the plasm aget older ans switch of antibodies takes place for scond time they can make IgA or IgE.
Hence, the correct option is c. IgA.
Answer: New growth is stricken with the blight before it has the chance to mature.
Explanation:
American Chestnut trees can indeed regrow from their roots but due to the devastating effect of the chestnut blight, they have been unable to do this since the blight spread across the country.
The blight was introduced when Chinese chestnut trees were imported into the U.S. in the 20th century. It killed off most of the chestnut trees in the U.S. and attacks the tree again when it grows to around 6 meters bringing it down to its roots. This is why the American Chestnut is considered endangered.