series resistance vs. parallel resistance in blood flow

[nonsciencemajor]

i am reading constanzo big book to prep myself up for med school, and I got stumped by this...

when are blood vessels in series resistance and when in parallel resistance... how can they be both... should they not be one or the other??.. i dont get it... someone please clarify my misunderstandings

thanks...

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[nonsciencemajor]

how would you know when blood flow is in series or is in parallel?

 

[Livestrong51085]

www.google.com

 

[scapermoya]

i think its a question about the fact that there are very few places where blood has to go through two independent capillary beds before returning to the heart (eg hepatic portal vein).

 

[nonsciencemajor]

i think its a question about the fact that there are very few places where blood has to go through two independent capillary beds before returning to the heart (eg hepatic portal vein).

the book didnt explain anything about the hepatic portal vein... at least yet it didnt..... and i am still confused where are the parallel and series blood flow .. how can one know whether blood will go through a series or parallel route ?

 

[RevMD]

Answer... Learn to use it.

Now it would be very rude of me if I couldn't be of more help, so CV Physiology seems to have a nice explanation that should explain it for you.

 

[howelljolly]

Blood vessels travel along a length (series) and also branch out (parallel) into smaller vessels.... eventually they come back together in larger vessels (series).

arteries-arterioles-capillaries-venules-veins

Theres a nice picture in the physio text

 

[nonsciencemajor]

Blood vessels travel along a length (series) and also branch out (parallel) into smaller vessels.... eventually they come back together in larger vessels (series).

arteries-arterioles-capillaries-venules-veins

Theres a nice picture in the physio text

thanks!!!!! makes sense.

 

[nonsciencemajor]

Blood vessels travel along a length (series) and also branch out (parallel) into smaller vessels.... eventually they come back together in larger vessels (series).

arteries-arterioles-capillaries-venules-veins

Theres a nice picture in the physio text

what does post-doc really mean? I have heard it so many times, and just assume graduate student... but its the first time i see on SDN post-doc.

so what does post-doc really mean? You did med school and then doing a PhD? Or you are in MD/PhD? Or are you in residency?

 

[howelljolly]

what does post-doc really mean? I have heard it so many times, and just assume graduate student... but its the first time i see on SDN post-doc.

so what does post-doc really mean? You did med school and then doing a PhD? Or you are in MD/PhD? Or are you in residency?

I have an MD, Im doing research now and will start residency this summer.

A post-doc is actually a research fellowship thats done after a PhD.... E.g. a PhD in Pharmacology can do a post-doc on psychopharm or toxicology...... a PhD in Biology can do a post-doc in physiology or ecology.......... A PhD in Biochem can do a post-doc in Genetics or Nutrition. Kinda whatever you are interested in, as long as the lab/faculty feel that you PhD qualifies you to work with them.

MDs who work in a basic science lab are loosely termed post-docs, because they are working in the capacity of PhDs more or less.... mostly a lot less.

 

[nonsciencemajor]

I have an MD, Im doing research now and will start residency this summer.

A post-doc is actually a research fellowship thats done after a PhD.... E.g. a PhD in Pharmacology can do a post-doc on psychopharm or toxicology...... a PhD in Biology can do a post-doc in physiology or ecology.......... A PhD in Biochem can do a post-doc in Genetics or Nutrition. Kinda whatever you are interested in, as long as the lab/faculty feel that you PhD qualifies you to work with them.

MDs who work in a basic science lab are loosely termed post-docs, because they are working in the capacity of PhDs more or less.... mostly a lot less.

wow thats quite impressive.. you were a nonscience major, got an MD, and now are in a basic science lab starting residency soon... you must really have mastered your basic sciences to get that post-doc job... what makes me even more impressed is that you were a nonscience major... gives me hope looking at your success 😀... did you do any higher level science courses in undergrad?

 

[bannie22]

wrong forum
mods. shift it pls

 

[howelljolly]

wow thats quite impressive.. you were a nonscience major, got an MD, and now are in a basic science lab starting residency soon... you must really have mastered your basic sciences to get that post-doc job... what makes me even more impressed is that you were a nonscience major... gives me hope looking at your success 😀... did you do any higher level science courses in undergrad?

I didnt do any science courses besides the 8 pre-med courses.... Bio, chem, Org, and physics. I didnt even take biochem. I have a "stonger" background than someone who majored in Literature or something.... but Im telling you it doesnt matter. Med School is the great equalizer.

I was just really interested in some of the basic sciences I was studying in M1 and M2. I didnt really have to "master" them. I learned the concepts, learned the clinical application, and went back to the concepts as a researcher.

Its not hard, even in research.... they just need a warm body that isnt braindead for a lot of things. If you're interested, you'll find something to in research, you dont have to show any special ability.

 

[Reggieray2k]

Has anyone named the KCL KVL equivalents in blood flow? I'd like some laws named after myself. Dibs!

 

[metallica81788]

i am reading constanzo big book to prep myself up for med school, and I got stumped by this...

We get it. You're cool. You're reading physiology so you can bust all of our gunner asses in med school. 🙄

You've made like 4 or 5 threads on this, you're lame. That is all.

 

[nonsciencemajor]

We get it. You're cool. You're reading physiology so you can bust all of our gunner asses in med school. 🙄

You've made like 4 or 5 threads on this, you're lame. That is all.

lol..... i am not a gunner... on the contrary.. i really dont care how people do, and just care about my own performance.... i am not trying to be #1 in the class or anything like that... i really just want to get an MD and go on with my life to be quite honest... and yes, i will help if asked for it...

and little do you guys know how much fun I have also.... yes i will admit I study A LOT but have fun A LOT.

I never go to lecture (except for the upper level non science classes), and study in the library during lecture time..... basically in the library from early morning to around dinner time)....this way when people actually get to studying themselves I'm all ready done.. and go out and have fun till late ... next day same routine same time in the library regardless of how late I was out the previous night.. i dont think thats gunnerish at all...

Sleep is sacrificed in the process, but i really dont believe in wiling away my youth in sleeping.......

 

[Renaissance Man]

I wish I was like you

 

[absolutjag9]

hello everyone i have a quick question on a problem set i am doing on vessel resistance and flows. http://rfumsphysiology.pbworks.com/Cardiovascular+Problem+Set+A

if you go to the above link and see question # 3, wouldn't the answer be that flow X is 3 times that of Y? I thought that vessels in series have the same flow throughout, whereas the vessels that are parallel have varying flow.

For question #4, I am able to deduce that total resistance in parallel circuits is always less than any of its individual components. In series circuits, total resistance is the sum of the individual components. I don't know where to go from there...D or E seem the best if I had to guess.

Any help is appreciated.

 

[surftheiop]

We get it. You're cool. You're reading physiology so you can bust all of our gunner asses in med school. 🙄

You've made like 4 or 5 threads on this, you're lame. That is all.

You have the most amazing avatar I have ever seen

 

[Bacchus]

SDN isn't for homework help.