-
Lymph
- Flows through lymphatic vessels
- fluid lost from blood capularies
- 3 liters per day
- water, ions, protiens, and white blood cells
-
Capillaries
- endothelium and connective tissue
- permeable (everywhere besides blood brain barrier)
- most cells near capullaries
-
lymphatic Flow
- lymphatic capularies
- lymphatic vessels &nodes
- lymphatic trunks & ducts
- dump into subclavian veins
-
Edema
swelling due to fluid building up
-
Elephantiasis
- warms that entering through your feet
- reproduce
- fill up your lymphatic system
- keeping the fluid from getting back yo your heart
-
Lymph Nodes
- ball shaped structures
- occur in groups
- filter or trap-immune function (pathogens)
- lymphocytes & macrophages (monocytes)
- can be infected (painful)
- spread cancer
-
lymphatic Organs
- 1. spleen
- 2. tonsils
- 3. thymus
-
Spleen
- left side of abdomin
- filter blood for disease
- removes and phagocytize olf RBC's
-
Thymus
- right above heart, in mediaastium
- childrean its tissue but turns to fat as it gets older
- development of t-lymphocytes
-
Tonsils
immunity "memory"
-
Inate
- serious of mechanisms that respond the same way to a whole bunch of different diseases.
- will not remember
-
Adaptive
responds to a specific pathogen and will remember it
-
Chemical Mediators
- mucus
- can kill pathogens.....good thing
-
Sebum
- oil in hair
- kills pathogens
-
Lysosomes
- membrane bound molecule that kills pathogens
- filled with lysoxymes
-
Complement
- compleated froup of chemicals that needs to be triggered
- create hole in plasma membrane of bacteria
- allos sodium and water in so bacteria will explode
-
Interferons
- produced by cells infected by a virus
- triggers surrounding cells to produce an antivirul protein
- prevents the virus from building RNA, DNA, and protien
-
White Blood Cells
- phagocytize, engold bacteria
- neutrophils and macrophages
-
Natural killer cells
lymphocytes that kill infected cells
-
basophils and most cells
produce histamines (cause swelling)
-
eosinophiles
reduce inflammation
-
Inflammation
- injury/infection (swollen red)
- increase blood flow
- chemical attraction of phogocytic WBC
- releases complement
- fibrin, trap infection
-
Specificity and memory
attacking specific pathogens and we are remembering them
-
Antigens
- mollicule (forigne) on the surface of cells
- how body remembers pathogens
- self vs non-self
|
|