Impulses from nociceptors are transmitted via two

fiber types:

Thinly myelinated Aδ fibers (2–5 μm in diameter) that conduct at rates of ∼12–35 m/s 

Unmyelinated C fibers (0.4–1.2 μm in diameter) that conduct at low rates of ∼0.5–2 m/s

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#Id: 1919

#Unit 4. Cell Communication and Cell Signaling

Plasma cell decision point

TLS Online TPP Program

#Id: 1920

#Unit 4. Cell Communication and Cell Signaling

Properties of thymus-dependent and thymus-independent antigens

TLS Online TPP Program

#Id: 1921

#Unit 4. Cell Communication and Cell Signaling

B cells can be negatively signaled through CD22 and FcγRIIb a receptor that recognizes the presence of IgG containing immune complexes in the blood.

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#Id: 1922

#Unit 4. Cell Communication and Cell Signaling

B-10 B cells release the interleukin IL-10 upon antigenic stimulation, and may serve to reduce inflammation during an ongoing immune response.

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#Id: 1923

#Unit 4. Cell Communication and Cell Signaling

The term complement refers to a set of serum proteins that cooperates with both the innate and the adaptive immune systems to eliminate blood and tissue pathogens. 

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#Id: 1924

#Unit 4. Cell Communication and Cell Signaling

Proteins Involved in the Complement System