BiSci #1 (Exam 2) Flashcards
blood
a fluid connective tissue made up of 55% plasma and 45% cellular components
blood functions
- primary transport medium
- defends the body against invasion by pathogens
- regularly functions: body temp, water-salt balance, and body pH
water
main thing in plasma
plasma
liquid portion of blood made up of 92% water and 8% dissolved substances
homeostasis
plasma proteins help maintain
3 things in plasma
- water
- ion
- hormones
oxygen
hemoglobin carries what
3 things in formed elements
- erythrocyte (RBC)
- thrombocyte (platelet)
- leukocyte (WBC)
blood cell
stem cells can morph into what
liver and spleen
break down worn out RBC
WBC
fight infection and clean up debris (everywhere in your body)
neutrophils (WBC)
most abundant and the first to respond to an infection (phagocytes)
eosinophils (WBC)
increased in number during an allergic reaction or a parasitic worm infection
basophils (WBC)
release histamines associated with allergic reactions (dilates blood vessels and constricts air ways)
monocytes (WBC)
become larger macrophages that phagocytize pathogens, old cells, and cellular debris