100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
MCB3020 EXAM4 Questions and Answers $12.49   Add to cart

Exam (elaborations)

MCB3020 EXAM4 Questions and Answers

 5 views  0 purchase
  • Course
  • MCB3020
  • Institution
  • MCB3020

List blood formed elements and describe their functions. o :# -red blood cells: transport oxygen and carbon dioxide o -platelets:essential for blood clotting o -white blood cells (leukocytes): include a diverse group of cells involved in immunity o --Granulocytes:presence of granules in th...

[Show more]

Preview 3 out of 23  pages

  • September 2, 2024
  • 23
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MCB3020
  • MCB3020
avatar-seller
ExamArsenal
2024/2025 1|Page




MCB3020 EXAM4 Questions and Answers
List blood formed elements and describe their functions.

o :# -red blood cells: transport oxygen and carbon dioxide

o -platelets:essential for blood clotting

o -white blood cells (leukocytes): include a diverse group of cells involved in

immunity

o --Granulocytes:presence of granules in their cytoplasm and include neutrophils,

eosinophils, mast cells and basophils

o --Agranulocytes: lack granules and inclue monocytes and lymphocytes




Compare innate immunity and acquired immunity. List main players involved in each

type.

o :# -innate immunity: the bodies natural immunity (immunity a person is bork

with) (fever and inflammation)

--first line of deffence: barrier defenses that prevent pathognes from entering the body.

Includes skin and mucous membrands of the digestive, respiratory and urogenital tracts

--second line of deffence: the nonspecific defenses that attack a pathogen once it has

enters the body. includes phagocytosis, extracellular killing, inflammation, fever and the

complement system

-aquired immunity: oerfected as an individual grows over. when a person is exposed to a

new kind of infection they develop aquire immunity. (addaptive immunity or specific

immunity

, 2024/2025 2|Page




Compare layers of skin and mucous membrane and their role in immune system.

o :# -major components of the first line of defense of the immune system

-skin:inhospitable to potential invaders because it is dyr, cool, salty, has a low pH and

protective secretions that kill bacteria. Contains normal flora

-epidermis: top layer of skin which consists of tightly packed layer of dead cells that are

constantly being sloughed off and regenerated.

-mucous membranes: respiratory, digestie, and urogenital tracts. produce a sealant like

layer that covers and protects the cells of the membrane

-epithelium: outermost layer of the mucous membrane. as cells are shed from the

epithelium, microbes that have attached to the epithelium are shed away as well

-mucociliary escaltor: prevents microbesform entering the lungs




What are the elements of first, second, and third line of defense

o :# -first line of defense: physical and chemical defenses that prevent pathogens

from entering the body. (skin and mucous membranes of the respiratory,

digestive, and urogenital tracts)

-second line of defense: non specific defenses tht attackall the pathogens in a similar

fashion. (phagocytosis, inflammation, extracellular, fever and the complement system)

-third line of defense: forms the bodies acquried immune response. Targets each infection

with tailor-made components (lymphocytes: B cells, T cells and natural killer cells)

, 2024/2025 3|Page


What is cell-mediated immunity (CMI)? Humoral immunity (AMI)

o :# -cell-mediated immunity: against intracellular pathogens. Involves T cells and

natural killer cells that act as house keepers, killing cells that pose a problem for

the body

-humoral immunity: immunity agianst extracellular pathogens. Involves the activation of

B cells




Name the primary and secondary lymphoid organs, where all blood components are

originated from?

o :# -Primary lymphatic tissues and organs: involved in the production,

maturation and differentiation of lymphocytes (bone marrow and thymus)

-secondary lymphatic tissues and organs: involved in encountering and binding antigens,

initiating an adaptive immune response. (lymph nodes, spleen, tonsils, lymphoid tissues

and pryers patches)

-all of the blood formed elements of the immunse system originate in the bone marrow




What does de-granulation refer to? Which cells are involved? Example of granules

produces by these cells?

o :# -degranulation: the process by which granular cells lose their granules

-for example: when these cells encounter an allergen, they might release their granules,

which contain concentrated chemicals, the most most common of which is histamine.

This produces an allergy response, and it is why you have to take antihistamines to fight

against allergies

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 ExamArsenal. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $12.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

82871 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$12.49
  • (0)
  Add to cart