Blood 1 Flashcards
Blood carries what to tissues & the lungs ?
O2 and nutrients to tissues
Waste to the lungs, liver and kidneys where they can be removed but he body
Blood approx how much of body weight?
7%
What leaves heart and what comes in?
O2 and nutrients diffuse out
CO2 and waste diffuse in
O2 poor blood leaves which side of heart?
Right and is transported to lungs to pick up O2
Erthryocytes
RBC
Leukocytes
WBC
Platelets
Blood cell type
Plasma
fluid component of blood comprising 55% of total blood volume
45% of blood is ethryrocytes
Leukocytes and platelets <1% of blood (buffy coat)
Albumin
most abundant (>50% of plasma protein) from LIBER Maintains colloid osmotoic pressure maintains blood b/w interstitial fluids and blood Carrier protein of hormones
Gamma Immunoglobulins
Antibodies secreted by plasma cells (B cells) and lymphocytes
function: immunity
alpha and beta non-immune globulins
source: liver
Function: transport substances in the body and maintain osmotic pressure
Fibronogen
Source: liver
Function: formation of blood clot
Electrolytes in plasma
Ca (muscle contraction), Fe, Na, K, Cl Mg, HCO3, PO4, SO4
K and NA help transmit nerve impulses
Serum of blood
When blood is removed from body and allowed to stand, it clots
Clots form solid coagulum
Serum= clear yellow liquid that separates from the coagulum (clot)
Serum on top and clot on bottom
SERUM IS PLASMA WITHOUT CLOTING FACTORS
Anticoagulants
When present, no clotting
Heparin, EDTA< citrate
3 layers of serum:
Bottom layer: Erythrocytes (red cells)
Middle layer- buffy coat; WBC and platelets (,1%)
Upper layer- plasma (55% of blood)
Erythrocytes
Mature RBC Most numbers Red because of hemoglobin Survives 120 days aka 3 months Transports O2 from lungs to tissues and CO2 away from tissues
Platelets or thrombocytes
Second numerous cells
Produced by fragmentations of cytoplasm of megkaryocytes (large) in bone marrow. Last 10-12 days
Role: homeostasis
Leukocytes
Least numerous
WBC
Turnover quite fast bc live on for a few hours
Types of Leukocytes
1) Neutrophils: Most numerous
8-10 hours in circulation
defense against bacterial or fungal infections
2) eosinophils
4-5 hours
defense against parasitic infection and dampen allergic response
3) basophils: mediate servere allergic reactions (anaphylactic) and inflammatory reactions
Monocyte
10 hours in circlation
mature into macrophages
remove unwanted aged cells and other debris
Produce cytokines required for inflammatory and immune response
Lymphocytes
Variabele lifespain
T, B, and natural killer cells
Functions of blood
1) transport of nutrients and waste products
2) respiratory gas transport
3) thermoregulation
4) maintaining of homeostasis
5) homeostasis
CBC
gives you info about # of cells
