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OdessaHernando'sCardiovascularSystem (heart (microscopic anatomy of…
OdessaHernando'sCardiovascularSystem
heart
pericardial membranes:
fibrous pericardium
serous pericardium
parietal pericardium
visceral pericardium
layers of heart wall:
epicardium
myocardium
endocardium
microscopic anatomy of myocardium:
cardiac muscle cell
nucleus
intercalated discs
gap junctions
fasciae adherens
mitochondrion
T tuble
sarcoplasmic reticulum
z disc
sarcolemma
1 band
2 band
heart valves:
tricuspid valve
biscupid valve
aortic valve
pulmonary valve
conduction system of heart in order:
sinotrial (SA) node (impulse that signals each heartbeat begins here
internodal pathway (impulses travel along)
atrioventricular (AV) node (where it is delayed for a fraction of a second)
atrioventricular (AV) node (impulses race through here)
bundle branches (AV nodes enter interventricular septum and divides left and right of the branches)
subendorcardial conducting network
blood vessels
artery types:
elastic artery
muscular artery
arteriole artery
capillary types:
continuous capillary
fenestrated capillary
sinusoid capillary
vein types:
venules
blood
plasma branches:
albumin
globulins
fibrinogen
cells branches:
leukocytes:
neutrophil
eosinophil
basophil
lymphocyte
monocyte
erythrocytes
platelets