Physio Block 3
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What drug decreases preload?
What drug decreases afterload?
Cardiac output equals what?
The largest blood volume in the CVS is found where?
- 1.venous side
- 2.pulmonary circulation
Blood flow is equal to what?
difference in pressure/ resistance
What is the prime determinant of viscosity?
What lowers hematocrit?
What is polycythemia?
Increase in RBC #
Resistance in proportional to what?
viscosity x length of bv/r^4
What are the 2 type of flow in the system?
Which flow, laminar or turbulent produces more resistance?
Which flow produces murmurs?
Which is a layered flow?
Which is a non layered flow?
Reynolds number measure what?
turbulent blood flow
Reynolds number is proportional to what?
diameter x velocity x density/ viscosity
Which artery would have a greater pulse pressure, a compliant one or a stiff one?
What is the most compliant artery in the system?
Mean arterial pressure is equal to what?
- 1. diastolic pressure + 1/3 pulse pressure
- 2. 2/3 diastolic pressure + 1/3 systolic pressure
- 3.CO x TPR
What function does angiotensin II have?
What is the differential between Wilsons and Menke?
- Wilson--- high copper
- Menke--low copper
- both have low ceruloplasmin
Williams syndrome is caused by?
What disease is characterized by elfie facies?
The left heart's cardiac output is equal to what?
Right heart's cardiac output
Beta adrenergic receptors are found where?
What do they mediate?
What do they bind?
- on arterioles
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