Antigen presenting cell - Study guides, Class notes & Summaries

What are the 5 types of Immunity? -Natural Immunity (Innate Resistance/Immunity) -Acquired Immunity -Passive Acquired Immunity -Humoral Immunity -Cell-Mediated Immunity Define Natural Immunity (Innate Resistance/Immunity): -resistance that exist prior to exposure to a microbe -we are born with this resistance -based on genotypes and species What nonspecific barriers to infection does Natural Immunity provide? -skin -mucous membranes -certain cells (NK cells) Master01 | October, ...

The world of surgery in prior to the 1900's was primitive by our standards. Although Fracastoro of Verona in 1546 theorized that small germs could cause contagious diseases, no one associated them with wound infections. Bed linen and laboratory coats were not routinely washed, and surgical instruments were only cleaned before they were put away for storage. The same probe was used for the wounds of all patients during rounds to look for pockets of undrained pus. Pain and pus were considered ...

ONS/ONCC Chemotherapy Immunotherapy Certification Test Questions and Answers Latest Updated 2024 (VERIIFED) Foundations to Set the Stage Focusing on Cellular Structure and Function The Normal Cell Cycle -Answer -The cell cycle refers to the ordered seres of processes of DNA replication and mitosis, or cell division -Cell nucleus regulates these processes by gathering and processing complexes molecular information Interphase and Mitotic Phase -AnswerCell division produces two identical cell...

MICR221 EXAMINATION QUESTIONS WITH ALL CORRECT ANSWERS AB toxins - Answer-A has toxic enzymatic activity and B binds to receptors on host cells so A can be internalised by endocytosis botulinum toxin - Answer-blocks release of acteylcholine from stimulatory motor neurons so no muscle contraction and flaccid paralysis tetanus toxin - Answer-blocks release of glycine (stops acetylcholine release) from inhibitory interneurons stimulating muscle contraction (uncontrolled) how botulinum an...

NURS 5315 UTA Exam 2 Questions with 100% Verified Correct Answers 2024/2025 HIV EIA (3rd generation immunoassay) - Correct Answer can use urine, saliva, or serum (most accurate), need to wait until 12 weeks post exposure to see antibodies, >99% accurate 4th generation immunoassay- "gold standard" measures P24 antigen can test 10 days post exposure Mast cell - Correct Answer Cellular bags of granules located in loose connective tisssue close to blood vessels. Activation initiates infl...

HIV EIA (3rd generation immunoassay) can use urine, saliva, or serum (most accurate), need to wait until 12 weeks post exposure to see antibodies, >99% accurate 4th generation immunoassay- "gold standard" measures P24 antigen can test 10 days post exposure Mast cell Cellular bags of granules located in loose connective tisssue close to blood vessels. Activation initiates inflammatory process. Histamine Causes vasodilation, increases vascular permeability, increases blood ...

Nur 502 - Advanced Patho Final Exam 1 Questions & Answers, Rated 100%-1. Which cells of the dermis release histamine? A) Mast cells B) Eosinophils C) Macrophages D) Histiocytes - A Basal cell carcinoma: A) has a high metastasis potential. B) can cause significant local tissue destruction. C) is usually not nodular. D) is often preceded by actinic keratosis. - B __________ forms part of the extracellular matrix and is involved in skin maintaining moisture. A) Eumelanin B) Hyalur...

HIV EIA (3rd generation immunoassay) - can use urine, saliva, or serum (most accurate), need to wait until 12 weeks post exposure to see antibodies, >99% accurate 4th generation immunoassay- "gold standard" measures P24 antigen can test 10 days post exposure Mast cell - Cellular bags of granules located in loose connective tisssue close to blood vessels. Activation initiates inflammatory process. Histamine - Causes vasodilation, increases vascular permeability, increases blood flow...

Define kinins. What effect do they have? Kinins: small polypeptides that cause powerful vasodilation --> Ex// Bradykinin, kallidin (kallidin converted to bradykinin) --> Linked to clotting system & activated with activation of clotting --> Activated kinins cause increased vascular permeability, vasodilation & smooth muscle contraction & pain Cytokines polypeptide signaling molecules that affect the function of other cells by stimulating surface receptors—generally function as ...

Holder" on APC cell - Macrophages - Dendritic Cells - B-Lymphocytes - MHC II Adjuvant - Help boost response by "irritating" immune system or clumping Antigens After APC goes to Lymph node... - APC touches and activities naive t-helper cells (TH0) and Tcytotoxic cells (Tc0) T-cell receptor: Membrane protein matches MHC II APC Agglutination - Clumping Fab binds to different antigen-bearing cells, causing clumping Great for Bacteria, larger viruses All antibodies are variations / combi...