HSS 1100 Lecture Notes - Lecture 2: Gram Staining, Crystal Violet, Antigen-Presenting Cell

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 1100
• Professor: Franco Pagotto

Document Summary

Think about what we do to avoid them. Routes of entry: inhalation and ingestion (main 2) and then also direct deposit. Barriers are important - most is skin! its dry and acidic. Complement - is a protein that attaches to bacteria and causes the insides to leak out. The coming together to form a pore is called mac (membrane attack compound) Humoral (circulating antibodies and b cells which are turned on by t helper 2 cells) and cell mediated immunity (turned on by t helper 1) Toxinogenicity - endotoxin has to be alive to produce the toxin and is heat sensitive and de nes toxin based on receptor. Endotoxin is inside the cell wall of the bacteria and is liberated when cell wall is compromised and is heat resistant. Autoimmune (attacking our own immune cells t helper and b) Natural immune response - primary immune response - takes like 5 days.