pulmonary and systemic capillaries

[exquisitemelody]

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TBR bio section 2, passage 4, question 28. Is there a mistake with the answer?

28. What of the following is NOT characteristic of systemic and pulmonary capillaries of an average adult human?
A. The diameter of a capillary is the smallest of any of the vessels.
B. The thickness of a capillary wall is the thinnest of any the vessels.
C. The capillaries contain between 5% and 10% of the total blood volume.
D. The capillaries contain about 20% of the total blood volume.


The answer is supposedly C, but I thought it was D, and the answer solution sounds like it was supposed to be D, but I don't know if I'm just reading it incorrectly.

 

[LeonVCU]

EK bio: Blood Volume: Heart 7%, Veins, venules, venus sinuses: 64%, arterioles & capillaries: 7%. So, they are right. Maybe you were thinking of arteries? They have 13% of blood.

 

[whiteshadodw]

all of this is somewhat trivial. i doubt you need to memorize this stuff.

 

[LeonVCU]

Agree with you 100% 🙂

 

[salim271]

Yeah, its C... i didnt do very well in that section lol. I think aorta is 20 percent and veins contain about 50 percent of the blood at any time, pressure is highest nearer to the heart, blah blah blah. You really remember a lot of random stuff when you review with TBR and find all the stuff that EK didnt find fit to go over... probably wont need a lot of it.

 

[whiteshadodw]

Yeah, its C... i didnt do very well in that section lol. I think aorta is 20 percent and veins contain about 50 percent of the blood at any time, pressure is highest nearer to the heart, blah blah blah. You really remember a lot of random stuff when you review with TBR and find all the stuff that EK didnt find fit to go over... probably wont need a lot of it.

TBR sometimes is too tricky, and for me i feel like its negatively impacting my score after a certain point. AAMC 3 and 4 are super straightforward and if you think twice about something you're going to get it wrong. i know 3 and 4 aren't the same as 9-11, but if they are similar in any way then my guess is you shouldn't guess yourself. you're going to be right 99% of the time if you've been doing well in TBR.