Spayed means a female dog has had her reproductive organs (ovaries and uterus) removed. Neutered means technically that an animal has been de-sexed, but usually is used to refer to a male dog being castrated.
A complement is a word or word group. that completes the meaning of a. verb. Every sentence has a subject. and a verb. Sometimes the subject. and the verb can express a. complete thought all by themselves.
The complement system is an enzyme cascade that helps defend against infection. Many complement proteins occur in serum as inactive enzyme precursors (zymogens); others reside on cell surfaces.The complement system bridges innate and acquired immunity by.Augmenting antibody (Ab) responses and immunologic memory.omplement components have other immune functions that are mediated by complement receptors (CR) on various cells. CR1 (CD35) promotes phagocytosis and helps clear immune complexes. CR2 (CD21) regulates Ab production by B cells and is the Epstein-Barr virus receptor.