controlling blood flow short -ten neutral and hormonal controls
sympathetic nerve
counteracts fluctuation in blood pressure by alter peripheral resistance
hormonal -adrenal medulla to the epithelial
cardiac output impacted
controlling blood flow long term renal regulation
counteract fluctuation in blood pressure by altering blood volume
retaining water lead to increase of BV and increase in blood pressure Losing water leads to decrease in BV leas decrease in BP
Tissue perfusion
level of blood flow
Blood flow tissue perfusion is involved in
delivery of O2 and nutrient and removal of waste from tissue cells
gas exchange lungs
absorption of nutrients (digestive tract)
urine formation(kidney)
Autoregulation
Sympathetic division
adjust blood flow to each tissue with proper requirement at any given time
controlled intrinsically bu modifying diameter of local arterioles
Independent of MAP, controlled to maintain constant pressure
Metabolic
muscular arteries and arterioles adjust their resistance to maintain tissues and metabolic needs
Metabolic controls
Hypermedia
vasodilation of arteries and relaxation of pre sphinchers occur in response to
-declining O2, Ph
_Increase H CO2, temp
Release No for vascular endothelial cells
vasocontriction due to sympathetic stimulation in endothelin
Hyperemia
triggering vasodilation lease to reducation is resistance and blood flow increase
Blood flow skeletal muscle
...