Anatomy and Physiology B/C

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JoeyC
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Re: Anatomy and Physiology B/C

Postby JoeyC » February 23rd, 2019, 7:01 pm

Wow. With what equipment?
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Re: Anatomy and Physiology B/C

Postby farmerjoe279 » February 24th, 2019, 7:27 am

Wow. With what equipment?
Probably with a sphygmomanometer.
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Re: Anatomy and Physiology B/C

Postby JoeyC » February 24th, 2019, 8:17 am

Wow, I've only ever read about that stuff. Turbulent flow vs laminar flow right?
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Re: Anatomy and Physiology B/C

Postby bp31000 » February 24th, 2019, 9:00 am

Very similar to the previous question, but did anybody find an easier explanation of the law? Because I found some sources, but they didn't help me understand the law. Any help would be greatly appreciated.
basically starlings law says that the more ventricular muscle is stretched by blood (or any muscle for that matter), the more it will contract, so better pumping. so more diastolic filling -> high end diastolic volume, more stretching of ventricular muscle, better pumping. essentially you are increasing stroke volume and Cardiac output when more blood fills ventricles.
hope this helps.
Thanks, I appreciate it.
i forgot to mention something else, frank starling law is different from starling's forces on capillaries.
starlings forces means fluid movement due to filtration across the wall of a capillary is dependent on the balance between the hydrostatic pressure gradient and the oncotic pressure gradient across the capillary.net filtration = total factors pushing fluid out - total factors pulling fluid in.
this law is applicable in glomerular filtration and also in capillaries where fluid in and out is determined by hydrostatic pressure gradient and osmotic pressure gradient.
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Re: Anatomy and Physiology B/C

Postby bp31000 » February 24th, 2019, 9:01 am

Wow. With what equipment?
Probably with a sphygmomanometer.
:shock: :shock: :shock: rules say it is supposed to be a "written test" i was counting on that!
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Re: Anatomy and Physiology B/C

Postby farmerjoe279 » February 24th, 2019, 9:43 am

Wow. With what equipment?
Probably with a sphygmomanometer.
:shock: :shock: :shock: rules say it is supposed to be a "written test" i was counting on that!
If they asked for BP of a living person (with the person in the room) they should give you a sphygmomanometer and a stethoscope. You cut the blood flow of the arm with the sphygmomanometer while placing the stethoscope on the forearm. Slowly release the pressure on the arm. When you hear the blood start flowing, that's systolic pressure. Keep on relieving pressure and when you stop hearing the blood flowing, that's diastolic pressure.
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Re: Anatomy and Physiology B/C

Postby WangwithaTang » February 24th, 2019, 9:45 am


Probably with a sphygmomanometer.
:shock: :shock: :shock: rules say it is supposed to be a "written test" i was counting on that!
If they asked for BP of a living person (with the person in the room) they should give you a sphygmomanometer and a stethoscope. You cut the blood flow of the arm with the sphygmomanometer while placing the stethoscope on the forearm. Slowly release the pressure on the arm. When you hear the blood start flowing, that's systolic pressure. Keep on relieving pressure and when you stop hearing the blood flowing, that's diastolic pressure.
Don't you have to time how much blood is flowing?

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Re: Anatomy and Physiology B/C

Postby JoeyC » February 24th, 2019, 9:48 am

No, I think you just check the pressure of the sphygomomanometer. You shouldn't need to time anything.
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Re: Anatomy and Physiology B/C

Postby farmerjoe279 » February 24th, 2019, 10:42 am

No, I think you just check the pressure of the sphygomomanometer. You shouldn't need to time anything.
Yes, you wouldn't need to time anything for BP.
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Re: Anatomy and Physiology B/C

Postby amk578 » February 24th, 2019, 10:57 am

No, I think you just check the pressure of the sphygomomanometer. You shouldn't need to time anything.
Yes, you wouldn't need to time anything for BP.
Wouldn't doing a blood pressure measurement be biased? Because depending on the person their blood pressure could fluctuate at any moment based on what they're doing?
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