Chapter 18-Cardio & Lymphatic Systems Flashcards
(39 cards)
Defense mechanism for CARDIOVASCULAR system
blood-borne components of nonspecific and specific immunity-includes phagocytes, specific immunity; NO NORMAL BIOTA
Defense mechanisms for LYMPHATIC system
numerous immune defenses reside here; NO NORMAL BIOTA
Functions of cardio/lymphatic systems
provide tissue with oxygen/nutrients
carry away carbon dioxide and waste
Anatomy of lymphatic system
1 lymph vessels parallel blood vessels
2 lymph nodes cluster at sites (neck, groin, etc)
3 spleen
Carries oxygenated blood away from heart
arteries
carries deoxygenated blood back to heart
veins
smallest blood vessels; have 1 layer epithelium
capillaries
Lymphatic defenses
1 few microbes that can survive in blood
2 leukocytes, lymphocytes, phagocytes
Name causative agent of malaria.
plasmodium species
virulence factor of malaria
multiple life stages, multiple antigenic types, ability to scavenge glucose
prevention of malaria
mosquito control, bed nets, THERE IS NO VACCINE
transmission of malaria
by mosquito
symptoms of HIV
1 levels of virus in blood
2 levels of T cells in blood
initial symptoms of HIV
1 fatigue, diarrhea, weight loss, neurological changes
2 opportunistic infections or neo plasmas (cancer)
HIV transmisson
direct (sexual) contact, parenteral (blood-borne), vertical (mom to baby via breast milk)
HIV culture
initial screening for antibody followed Western blot confirmation test
HIV treatment
HAART, Fluzeon, nonnucleitide RT inhibitors
epidemiology of MALARIA
1- spread by Anopheles mosquitos
2- 90% of cases are in Africa
2- 2 million are killed annually, mostly kids
epidemiology of AIDS
25 million people have died world wide
++for every 2 people receiving treatment, 5 new patients are being diagnosed… this means that the # of new infections is growing faster than we have access to drugs to treat them++
B/c symptoms of AIDs not easily seen, it _______
increases the chance of the disease being spread
SEPTICEMIA caused by
bacteria or fungi
SEPTICEMIA transmitted via
parenteral, endogenous transfer
SEPTICEMIA culture done via
blood culture
SEPTICEMIA treatment
broad-spectrum antibiotics