Drogas

http://www.medfriendly.com/lymphocyte.html
http://www.health.ny.gov/prevention/immunization/how_vaccines_work.htm
http://www.enotes.com/history/q-and-a/who-invented-vaccination-288049http://www.biology-online.org/1/11_cell_defense_2.htm
objective: Analyze the defense mechanisms the human body has against infectious diseases.
Procedure: after reading in some reliable sources about the topic,I answered the following questions.
Homework 13
Instructions:
Do research on reliable sources and develop the following aspects:
Make a diagram to mark the situations in which the nonspecificexternal and internal barriers of the body in the defense mechanism against diseases may be crossed.

responds
Nonspecific externalbarrier
skin / mucous membranes

If the barrier is penetrated , the body
respond with
kills
Nonspecific internaldefences
natural killer cells/ inflamation/ fever

If Nonspecific defences are insufficient,
the bodyrespond with
kills and remembersSpecific Inmune Response
Cell-mediated immunity / humoral Immunity
________________________________________Investigate what happen when the number of lymphocytes in the blood is above or under the normal concentration.
*if the number of lymphocytes is too high, flu, chickenpox and other causes includetuberculosis, mumps, rubella, varicella, whooping cough, brucellosis, and herpes simplex can appear.
Aplastic anemia can cause an abnormally low lymphocyte leading to Immune Deficiency Syndrome...