Through what blood vessels is oxygen passed to the cells of the body?

Question

a)red blood cells
b)capillaries
c)White blood cells
d)arteries


2 more questions

Deposits from cigarette smoke and other atmospheric pollutants may interfre with the

a)warming of air in the nasal cavity
b)secretion of mucus by alveoli
c)contraction of the diaphram
d)action of cilia in the trachea


What will most likley happen when food is in the trachea

a)the food will be completly digested as a result of enzyme action

b)The food will intefere with the passage of air to the alveoli

C) The food will be moved down to the stomach by peristalsis

d)The food will undergo emulsification and deamination

Answer 1

1.) B....you can eliminate A & C because they are not vessels...D is a possible answer, but the arteries really don't pass oxygen to the cells, they carry oxygenated blood through the body...the capillaries are the vessels that actually transfer oxygen to cells

the site of oxygen TRANSFER from the alveoli to the cells is termed that alveolar/capillary membrane...the arteries merely carry blood that is already oxygenated from the A/C membrane...see this site for a good diagram: http://www.pdh-odp.co.uk/diffusion.htm

2.) D....A really is not an issue, mucus is not secreted by the alveoli, it is secreted by the larger airways so B is out (if this is an exam and your teacher is not being specific this could be answer as cigarette smoke definitely causes an increase in mucus production...I would eliminate this answer based on the fact that it says the alveoli secrete mucus, which they don't), the diaphragm is a muscle and is not directly affected by cigarette smoke, pollutants/cigarette smoke can slow the action of the cilia

3.)B....all the other answers would only occur if the food made it to the stomach, which it can't if it enters the trachea

Answer 2

For the first question, I think the answer might be the arteries. I have provided you with a link to verify that.

http://en.wikibooks.org/wiki/Wikijunior:Human_Body/Blood_Vessels

For the second question, I'm not actually sure what the answer could be. Sorry.

I believe that the answer to the third question might be b) The food will interfere with the passage of air to the alveoli, but again, I'm not really sure about that either.

I'm sorry that I'm not really sure what some of the answers are, but good luck!

Answer 3

1 is the arteries... thats how oxygen is carried to the cells. Ive done enough blood gases in my lifetime to verify that.

2. d. irritants, mostly nicotine, paralyze the cilia, which are tiny hairs in the lung lining, their job is to clean... if one quits smoking, they will wake up and return to thier cleaning.

3 b, it will interfere because you'll be choking. however in rare instances, some foods, for example a pea can actually pass thru and lodge in the lung, where it will cause all kinds of issues and infection, saw it in a patient once. she inhaled her own vomit after a drunk weekend. she lived, minus part of lung.

Answer 4

1 d (oxygen diffuses out of the red blood cells in the capillaries, then into the tissue fluid whence into cells.

2 d) interference with cilia can cause infection; mucus production is in fact increased (chronic bronchitis).

3 b) asphyxia will occur; if complete blockage of trachea occurs, patient could die.

Hope this helps.

Answer 5

b)

d) (Cigarette smoke could interfere with warming of air and hence (a) could be correct, however this is considered a minor health issue)

b)