Anat blood Flashcards
blood is a mixture of
cell fragments and dissolved biochem transport nutrients, O2, waste, hormones
function
transport substance btw cells and external envir, promote homeostasis
blood is a type of
CT
platelets
control blood loss from broken vessels
blood volume
8% of body weights
5 liters
hematocrit
packed cell volume
% of RBC in blood
45%
plasma
water, aa, carbohydrates, lipids, vitamin, hormones, electrocytes, waste
hematopoitic stem cells
into myeloid and lympoid respond to hematopoietic growth factors
thrombopoietin
stimulates large cell megakaryocytes to form platelets
RBC
biconcave
100-120 days
blue blood
rich in deoxyhemoglobin darker
erythropoiesis
blood cell production
before birth: yolk sac, liver, marrow
erythropoietin
hormone released from liver for RBC formation
anemia
deficiency of RBC
WBC
leukocytes
homrones that stimulate WBC production
interleukins
colony-stimulating factors
monocytes
largest WBC
WBC functions
phagocytise bact cells, produce antidbodies
platelets
thrombocytes
from ruptured cytoplasm of megakaryocytes
1/2 RBC, 10 days, no nucl
plasma protein
most abundant dissolved substance by weight
plasma protein function
albumins
globulins
fibrinogens
albumins
determine of osmotic pressure of plasma
globulin
tranpsort lipids n fat soluable vitamins
fibrinogens
blood coagulations
other plasma
water
O2 n CO2
dissolved notrogen
plasma nutrients: aa, simple sugar, nucelotides, lipids
granulocytes
WBC with granular cytoplasm neutrophil eosinophil basophil
lives 12h
agranulocytes
neutrophillack cytoplasmic granules
monocytes
lymphocytes
neutrophil 54-62
G small granual light purple 2-5 sections connected by strand or c shaped: younger ingest bacteriak  28
eosinophil 1-3
darker gran. stain deep red. 2 lobes
allergy n worm
basophil 1
bigger n darker gran obscure view
histamine
monocytes 3-9
largest. kidney shaped macrophags
lymphocytes 25=33
small. nucleus circular fills up most of the cell
TB
live long
diapedesis
WBC move out of small vessels
wbcc
RBC destroyed 5000
leukocytosis
increase WBC indicate infection
eukopenia
decrease on WBC
DWBC
percentages of WBC types in blood
antigens
agglutinogens on RBC
antibodies
agglutinins
plasma
against a specc antigen
AnB
neither anti A nor B
O blood type.
neither A or B antigen
both anti A and anti-B
pulmonary circuit
deoxygenated blood to lungs
systemic
send oxygenated to body
heart
in mediastinum of thorax apex. left lung smaller
pericardium
outer fibrous pericardium dense CT parietal pericardial cavity visceral/epicadium myocardium endocardium
wall of the heart
epicarium reduce frictio capillary CT, epith, nerve myocardium cardiac muscle, thich endocaridum epi lines
atria
upper chamber. thin walls and receive blood
ventricle
lower, force blood out of heart
right: thinner
interatrial septum
separates atrium
nterventricular septum
seperates ventricles
right atria
recieves blood from vein that return deoxygenated blood
coronary sinus
vein drains blood into right atrium from the myocardium
tricuspid valve
right atrium-right ventricle. blood goes down not up
chordae tendineae: strings attach cusp
papillary muscle: mounds of cardiac muscle,contracts when ven contracts
right ventricle
pump blood to lung
exits through pulmonary
trunk
left ventricle
blood to body
eft atrium
recieves blood from lungs through 4 pulmonary vein
mitral/bicuspid valve
left atrium-ventricle
aortic valve
allow blood to go out of left ventricle to aorta
pulmonary valve
allow right ventrical to pulmonary trunk
blood flow
deoxy enters RA n it contracts then enters RV then it contracts moves through pulmonary valve n then ti alveoli (lung) . Oxy blood returns to heart through pulmonary valve,trunk, artieryvein to LA n it contracts n into ventrical n into aortic valve and its branche
systole
contract lubbV
diastole
relax duppV
conduction
fw myofibrils
conduction list
stimulate muscle fiber to contract. blood from ventrical to aorta n pulmonary trunk. trigger: depolarized
SA node atrial syncytium junctional fibers AV node AV bundle bundle branches purkinje fibers ventricular syncytium
P
depolarization of atrial fiber. atria contract
QRS
repolarize atria depolarize at bottom of ventrical
T
ventricular muscle fiber repolarize
arteries
away from heart to capilaries
high pressure
smaller lumen. flow to capillaries
capillaries
site of exchange of substance btw blood n cells.
connect small arterioles and vein
extension of inner arterioles (squamous)
vein
return blood to atria. small. middle layer thin. thinner walls. have valves
vessel layers/tunics
tunica externa CT tunica media (smooth m) stretch, thick CT(elastic n collagenous) endothelium of tunica interna lumen
endothelium
prevent clotting secret dilate constrict vessel
vasomotor fiber
stimulattes smooth muscle to contract
arterioles
smaller thinner outer and middle layer
apillary permeability
small: smooth, akletal, cardiac
large: endocrine, kidneys, lining small intestine largest: liver spleen bone marroe
capillary arrangement
higher rate if metabolism: denser
