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

JoeyC wrote: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

donutsandcupcakes wrote:
bp31000 wrote:
donutsandcupcakes wrote: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

farmerjoe279 wrote:
JoeyC wrote: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

bp31000 wrote:
farmerjoe279 wrote:
JoeyC wrote: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

farmerjoe279 wrote:
bp31000 wrote:
farmerjoe279 wrote:
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

JoeyC wrote: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

farmerjoe279 wrote:
JoeyC wrote: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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Re: Anatomy and Physiology B/C

Postby donutsandcupcakes » February 24th, 2019, 12:45 pm

Quick question... In the question below I feel the answer is c, but the answer key states that the answer is b, so can somebody pls advise me on what I did wrong. My reasoning behind my answer was that veins collect the "bad stuff" (CO2 and waster material). Sorry I couldn't get the diagram in here:(

Q) In this blood flow diagram for the legs and pelvic area, which exchange vessels lose oxygen to body tissues and receive carbon dioxide and waste materials from the tissues?

a) Post-capillary arterioles and arteries.
b) Capillaries and post-capillary arterioles.
c) Capillaries and post-capillary venules.
d) Post-capillary venules and veins.

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Re: Anatomy and Physiology B/C

Postby bp31000 » February 24th, 2019, 7:24 pm

donutsandcupcakes wrote:Quick question... In the question below I feel the answer is c, but the answer key states that the answer is b, so can somebody pls advise me on what I did wrong. My reasoning behind my answer was that veins collect the "bad stuff" (CO2 and waster material). Sorry I couldn't get the diagram in here:(

Q) In this blood flow diagram for the legs and pelvic area, which exchange vessels lose oxygen to body tissues and receive carbon dioxide and waste materials from the tissues?

a) Post-capillary arterioles and arteries.
b) Capillaries and post-capillary arterioles.
c) Capillaries and post-capillary venules.
d) Post-capillary venules and veins.

There are no such thing as POST capillary arterioles, after capillaries, its all venous system. so c is the correct answer. Just capillaries would be the best answer as capillary is the only "exchange membrane"
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Re: Anatomy and Physiology B/C

Postby donutsandcupcakes » February 24th, 2019, 7:48 pm

bp31000 wrote:
donutsandcupcakes wrote:Quick question... In the question below I feel the answer is c, but the answer key states that the answer is b, so can somebody pls advise me on what I did wrong. My reasoning behind my answer was that veins collect the "bad stuff" (CO2 and waster material). Sorry I couldn't get the diagram in here:(

Q) In this blood flow diagram for the legs and pelvic area, which exchange vessels lose oxygen to body tissues and receive carbon dioxide and waste materials from the tissues?

a) Post-capillary arterioles and arteries.
b) Capillaries and post-capillary arterioles.
c) Capillaries and post-capillary venules.
d) Post-capillary venules and veins.

There are no such thing as POST capillary arterioles, after capillaries, its all venous system. So c is the correct answer. Just capillaries would be the best answer as capillary is the only "exchange membrane"


Thank You, this was my thinking too, but your explanation helped me double check my thinking. This test was an invitational's test which I get from Scioly test exchange page, I think the ES at the invitational made a mistake.

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Re: Anatomy and Physiology B/C

Postby farmerjoe279 » February 25th, 2019, 5:48 am

amk578 wrote:
farmerjoe279 wrote:
JoeyC wrote: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?


Well, the person would just be sitting in a chair or something where he is stationary, so his BP would be pretty constant. However, I do see what you mean. Maybe they just want to see if you can do it so you have practical knowledge.
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Re: Anatomy and Physiology B/C

Postby donutsandcupcakes » February 26th, 2019, 5:51 pm

I encountered one more question which I couldn't understand the answer for, so any help would be highly appreciated!

How many known human blood group systems are there?

a.3
b. 12
c. 14
d. 35

THE ANSWER KEY SAID THE ANSWER WAS D. I DON'T UNDERSTAND HOW THEY GOT D, SO CAN SOMEONE HELP ME UNDERSTAND, YOUR HELP WOULD BE GREATLY APPRECIATED!


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