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
lymphocytes (WBC)
B cells protect us by producing antibodies and T cells destroy any cell that has foreign antibodies
- SCID
- leukemia
- mono
3 disorders involving the WBC
platelets (thombocytes)
cell fragments necessary for clotting of the blood
hemophilia
inherited clotting disorder due to a deficiency in a clotting factor (no cure)
- thrombocytopenia
- thromboembolism
- hemophilia
3 disorders involving platelets
hemolytic disease
due to a pregnancy in which the fetus is both
-Rh positive
-Rh negative
the mother can begin to produce antibodies against Rh-positive RBC
Rh-positive blood
protein antigen found in the surface of the RBC
Rh-negative blood
absence of this protein antigen on the surface of the RBC
antigens
“self markers” (A)
antibodies
markers for the non self (B)
arterial end
blood pressure is higher than osmotic pressure
venous end
osmotic pressure is higher than blood pressure
lymphatic capillaries
absorb excess tissue fluid at the blood capillaries
EDMA
swelling that occurs when tissue fluid is not collected by the lymphatic capillaries
homeostasis is possible if
- the cardiovascular system delivers oxygen and nutrients to, and takes away metabolic wastes from, the tissue fluid that surrounds cells
- the lymphatic system returns tissue fluid to the bloodstream
phenotype
physical characteristic
genotype
genes
universal donor with no markers
O-
no markers and recipe. donor
AB+