ENTOM Lecture Notes Week 2
ENTOM Lecture Notes Week 2 8404
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This 2 page Class Notes was uploaded by Irene A. on Friday February 13, 2015. The Class Notes belongs to 8404 at Washington State University taught by Dr. Owen in Winter2015. Since its upload, it has received 36 views. For similar materials see ENTOM 102 in Biology at Washington State University.
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Date Created: 02/13/15
ENTOM 102 WEEK 0 Blood amp Skin 0 Interface between the host amp ectoparasite 0 purpose OOOOOOOOO acts as a barrier against infection protects against exposure amp mechanical damage holds innards together protects from sunU V rays holds in heat color serves as communicator part of personal identity sensory organ emits smell as a signature of identity interface between body amp outside world 0 What characteristics does have O 0000 O O regenerate repair damage amp grow stay healthy absorb vitamin D exible amp strong porouspermeable allows exchange of materials ex sweat Many different types of skin hair feathers scales etc are all modified skin cells Surface hair epidermis made of dead cells Dermis anchored hair oil glands muscle fibers connective tissue 0 O O protects against viruses immune defense vehicle for moving oxygen amp carbon dioxide transports nutrients amp waste 0 What is made of 0 00000000 water plasma proteins minerals fats carbohydrates oxygen amp carbon dioxide cells hormones 0 Blood Feeding what does an insect need to feed on blood I hollow long pointy vacuum sucking I is not solid it is a matrix of cells with uid in between I Parasites can quotswimquot under the skin I microbes living on skin39s surface can infect an open wound O Pain broken vessels swelling 0 Blood vessels become more permeable during an immune response allowing white blood cells to exit amp attack foreign bodies Pain amp Itching 0 what does an animal do I scratching licking I block insect from feeding or kill it is used by insects to make babies amp feed them Things you can39t do without 0 fight illness 0 deliver nutrients O carry oxygen Insect39s salivary glands 0 block skin39s ability to respond to pain 0 expand blood vessels 0 prevent clotting O numb pain