NU 545 Chapter 7 Exam Questions with All Correct Answers
1 view 0 purchase
Course
NU 545
Institution
NU 545
NU 545 Chapter 7 Exam Questions with All Correct Answers
Which bacteria are resistant to killing by granulocytes and can survive in macrophages? - Answer- TB, leprosy, typhoid fever, brucellosis. Listeriosis
activated macrophages - Answer- enhanced to increase their phagocytic capabilities.
...
NU 545 Chapter 7 Exam Questions
with All Correct Answers
Which bacteria are resistant to killing by granulocytes and can survive in macrophages?
- Answer- TB, leprosy, typhoid fever, brucellosis. Listeriosis
activated macrophages - Answer- enhanced to increase their phagocytic capabilities.
M1-activated through TLRs by substances found in sites of inflammation. Produce NO
and cytokines, release lysosomal granules = greater killing capacity
M2-activated by cytokines produced by sunsets of T cells. Involved in healing and
repair.
natural killer cells (NK cells) - Answer- pursue diseased cells (such as those infected by
viruses or cancer)
3 primary systemic changes associated with acute inflammatory response - Answer-
Fever, leukocytosis, plasma protein synthesis
fever - Answer- Early systemic response induced by specific cytokines known as
endogenous pyrogens
leukocyctosis - Answer- increase in WBC. During infection, accompanied by a LEFT
SHIFT in ration of immature to mature neutrophils (ex: bands)
Acute phase reactants - Answer- Proteins which can be proinflammatory or anti
inflammatory which are produced in the LIVER. Increased during inflammation. Ex:
fibrinogen.
chronic inflammation - Answer- 2 weeks+. Sometimes preceded by unsuccessful acute
inflammatory response. Can occur without previous acute inflammation. Characterized
by a dense infiltration of lymphocytes and macrophages.
Granuloma - Answer- Body attempts to walk off and isolate infected area. Formed by
epithelium cells and giant cells. Ex: TB granuloma-wall of epithelium cells surrounding
cheeselike center of dead tissue.
Regeneration - Answer- replacement of destroyed tissue by the same kind of cells
repair - Answer- replacement of destroyed tissue with scar tissue
, scar tissue - Answer- Composed primarily of collagen to restore the tensile strength of
the tissue
Wound healing process - Answer- Fill in, seal(epithelialization), shrink(contraction)
Primary intention healing - Answer- Occurs where the tissue surfaces have been
approximated, and there is minimal or no tissue loss
Secondary intention healing - Answer- wound in which the tissue surfaces are not
approximated and there is extensive tissue loss; formation of excessive granulation
tissue and scarring
compensatory hyperplasia - Answer- adaptive mechanism that enables certain organs
to regenerate
Phases of wound healing - Answer- inflammatory, proliferative, maturation
Inflammatory phase of wound healing - Answer- Coagulation and infiltration of cells that
participate in wound healing (platelets, neuts, macs)
debridement - Answer- Dissolution of fibrin clots(scabs) by fibrinolytic enzymes
proliferative phase - Answer- Macrophage invasion, recruitment of fibroblasts, collagen
synthesis, epithelialization, contraction of wound, cellular differentiation.
Angiogenesis factors - Answer- substances that stimulate the growth of new blood
vessels. One of the best known is vascular endothelial growth factor; others include
those derived from fibroblasts and platelets.
Cathelicidins - Answer- Family of antimicrobial peptides that in humans has one
member.
Defensins - Answer- antimicrobial peptides that inhibit microbial growth
Mannose-binding lectin (MBL) - Answer- soluble acute-phase protein in the blood that
binds to mannose residues on pathogen surfaces and, when bound, activates the
complement system by the lectin pathway
Resistin-like molecule beta - Answer- Found in intestinal goblet cells, where it appears
to protect against helminth infections.
Antimicrobial lectins - Answer- Lectin (carbohydrate binding protein) family with activity
against Gram+ bacteria; C-type lectins
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.09. You're not tied to anything after your purchase.
