. The symptoms of inflammation (swelling, redness, pain, warmth) are due to vari

Question

. The symptoms of inflammation (swelling, redness, pain, warmth) are due to various capillary changes. Which of the following are capillary changes that produce inflammation? a. vasoconstriction b. increased permeability c. reduced blood flow d. b and c e. a, b, and c All of the following are true about the complement system except a. three separate pathways all lead to C3 activation b. they are proteases circulating in their active form c. they are made in the liver d. they function as opsonizing agents Match the following factor C3b terminal complement factors (5-9) complement control proteins C3 convertases factor C3a a. form membrane-attack complex b. coats pathogen and helps phagocytes recognize pathogen c. attracts phagocytes d. bind and cleave C3 to C3a and C3b e. regulate (increase/decrease) 3Cb deposition on pathogens Which is NOT true about the spleen? a. it is a secondary lymphoid tissue b. it removes damaged and dying red blood cells (RBCs) c. it removes blood -borne pathogens d. its absence (asplenia) does not cause increased susceptibility to certain bacteria

Explanation / Answer

Question 1:-

The answer is option (b) increased permeability

Explanation :-

-the main vascular reactions of inflammation are increased blood flow secondary to vasodilation and increased vascular permeability , both designed to bring blood cells and proteins yo sites of infection or injury.

Question 2 :-

- the correct option is option (a) three separate pathway all lead to C3 activation.

Question 3 :-

- factor C3b- form membrane attack complex.

- terminal complement factor - coats pathogen and helps phagocytes recognise pathogen

- Complement control Proteins- regulate C3b deposition on pathogen

- C3 - convertase- bind and cleave C3 to C3a and C3b

- Factor C3a- attracts phagocytes

Question 4:-

Correct option is option (d) its absence doesn't cause increased susceptibility to certain bacteria.

Explanation:-

As it is a lymphoid organs it plays role in immunity , so its absence causes increased susceptibility to certain bacteria.

Hope you got your answer.

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