Answer:
1) cortical epithelial cells; (2) macrophages and dendritic cells
Explanation:
T cells, also known as T lymphocytes, are a fundamental type of cell of the immune system that determines the specificity of the immune response to specific foreign particles (antigens). T cells are produced in the Thymus (it is for that reason that they are called T cells) and then circulate throughout the bloodstream in order to recognize specific antigens in association with major histocompatibility complex (MHC) molecules on the surface of antigen-presenting cells (APC), such as macrophages and dendritic cells. T cells undergo positive and negative selection: 1- positive T-cell selection refers to the process by which T cells bind cortical epithelial cells that express Class I or Class II MHC molecules with enough affinity to get a survival signal; whereas negative selection occurs when T cells bind to macrophages and dendritic cells that express MHC specific receptors with a strong enough affinity to get an apoptosis (programmed cell death) signal.
Answer:
The most common cause of chronic upper airway obstruction in adults is OSA. Less common but potential causes of laryngeal pathology and subsequent airway compromise are tuberculosis, sarcoidosis, granulomatosis with polyangiitis, and Behcet disease.
Explanation:
Acids:
Lemon Juice- Cooking
Vinegar- Cleaning
Soda- To drink
Bases:
Baking Soda- Oven/Appliance Cleaning
Ammonia- Fertilizers
Bleach- Mildew/Mold Removal or Laundry Whitening
Explanation:
Acids
<span>Vinegar: HC2H3O2 - </span>cookery and it is also used to clean the air in your kitchen
<span>Hydrochloric Acid: HCl - has been found to be </span>employed in<span> hydraulic fracturing fluids.</span>
<span>Hydrogen Peroxide: H2O2 -
use in </span>cleanup<span> open wounds at a house, </span>typically<span> found </span>in an exceedingly<span> brown bottle.</span>
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