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blood flow inversely proportional to medullary osmolality & degree of concentration of urine. consider case 1, a) blood flow high , causes high H2O reabsorbtion in DLH, less secrn. in ALH., causes H2O accumulation in interstitium, leads to less H2O absorbn in loop of henle. leads to diluted urine. similaely opp. case
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What is blood flow directly proportional to?
Blood flow is directly proportional to blood pressure, vessel diameter, and heart rate. When these factors increase, blood flow also increases, and vice versa.
What is the principles relating to blood flow and pressure and resistance?
Blood pressure = (Blood flow)(Resistance). This equation is usually found in the following form: MAP = (CO)(R) Where MAP is the mean arterial pressure CO is the cardiac output R is the peripheral resistance
Rate of flow against pressure gradient graphs?
The rate of flow against pressure gradient graph typically shows a linear relationship. As the pressure gradient increases, the rate of flow also increases proportionally. This is in accordance with Poiseuille's law, where flow is directly proportional to the pressure gradient and the fourth power of the radius of the vessel and inversely proportional to the viscosity of the fluid.
When the medullary ischemic reflex results?
The medullary ischemic reflex occurs when there is a decrease in blood flow to the brain, particularly affecting the medulla oblongata. This reflex serves to restore blood pressure and blood flow by stimulating the sympathetic nervous system, leading to increased heart rate and vasoconstriction of blood vessels. It is a crucial response to maintain cerebral perfusion during episodes of hypotension or reduced oxygen supply. The reflex is vital for protecting the brain from ischemic damage during critical situations.
What will cause an increase in current flow in a simple series circuit?
An increase in voltage or a decrease in resistance will cause an increase in current flow in a simple series circuit. This is because current is directly proportional to voltage and inversely proportional to resistance according to Ohm's Law.
Is blood flow inversely proportional to resistance?
Yes, blood flow is inversely proportional to resistance in the cardiovascular system. When resistance increases, blood flow decreases, and vice versa. This relationship is governed by Poiseuille's Law.
Is pressure is directly proportional or inversly proportional to flow?
Pressure is inversely proportional to flow. This means that as pressure increases, flow decreases and vice versa. This relationship is described by the principles of fluid dynamics, specifically Bernoulli's principle.
What happens to current flow when the resistance is higher than normal?
For a specific voltage, current flow is inversely proportional to resistance.
What is blood flow directly proportional to?
Blood flow is directly proportional to blood pressure, vessel diameter, and heart rate. When these factors increase, blood flow also increases, and vice versa.
What has the author William Angus Cupples written?
William Angus Cupples has written: 'Effect of changes in renal medullary blood flow on function of the inner medullary collecting duct'
What is the principles relating to blood flow and pressure and resistance?
Blood pressure = (Blood flow)(Resistance). This equation is usually found in the following form: MAP = (CO)(R) Where MAP is the mean arterial pressure CO is the cardiac output R is the peripheral resistance
What is hydraulic horsepower?
A hydraulic variable that describes the power provided by a hydraulic system. HHP is directly proportional to flow rate and pressure and inversely proportional to the efficiency of a system
If you wire up a circuit with very thin wire what effect might this have?
less current will flow as resistance is inversely proportional to area
Why MVO2 and heart rate are inversely related?
MVO2 represents the volume of oxygen consumed by the heart and therefore is not inversely proportional to heart rate but directly proportional. The greater the heart rate the greater work (stress) put on the heart and thus an increase in myocardial oxygen demand. An approximated equation for MVO2 is: MVO2~HR*Systolic blood pressure. Coronary artery flow on the the other hand is inversely related to HR because coronary flow takes place during diastole and because an increase in heart rate decrease diastolic time coronary flow is reduced.
70psi equals how many cfm?
CFM is a unit of flow PSI is a unit of pressure you cant equate these except to say that they are inversely proportional... as pressure increases flow decreases
What is the relationship between flow rate and pipe length in a fluid system?
In a fluid system, the flow rate is inversely proportional to the pipe length. This means that as the pipe length increases, the flow rate decreases, and vice versa.
Does temperature directly proportional or inversely proportional to the kinetic and dynamic viscosity?
Temperature is inversely proportional to the dynamic viscosity, which is the measure of a fluid's resistance to flow. As temperature increases, the dynamic viscosity of a fluid typically decreases. However, for some fluids, the kinetic viscosity, which is dynamic viscosity divided by the fluid density, can increase with temperature due to changes in the fluid's density.
