veins

pink_lucie

why are they blue/purple if blood is red? :confused:

also recently ive noticed them alot more, is this cos ive lost weight so they show more? :confused:

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Reply 1

blissy

cause it's de-oxygenated blood?

maybe?

Reply 2

Slice'N'Dice

gossip_girl

why are they blue/purple if blood is red? :confused:

also recently ive noticed them alot more, is this cos ive lost weight so they show more? :confused:

You are looking at your veins through your skin. The blood inside them is dark red and it doesn't reflect light very well.

Reply 3

pink_lucie

Slice'N'Dice

You are looking at your veins through your skin. The blood inside them is dark red and it doesn't reflect light very well.

i dont understand :frown:

Reply 4

Slice'N'Dice

gossip_girl

i dont understand :frown:

There is less red light reflected from the shallow area between the surface and the vessel than blue light because blue light is scattered more. The surrounding tissue reflects back more red.

Reply 5

magiccarpet

ewww veins are so so gross!!!

Reply 6

pink_lucie

magiccarpet

ewww veins are so so gross!!!

only massive ones! yuck!!!

lol u cant spell

blissy

cause it's de-oxygenated blood?

maybe?

Yeah I think that's right. Apparently blood is blueish before it comes in contact with oxygen. Clearly whenever you cut yourself it's going to be red though (due to the oxygen in the air.) I'm sure Foolfarian or someone will clear it up.

Reply 9

john !!

Yes its deoxygenated. Blood with oxygen is red because of the iron in haemoglobin and it is blue when it releases oxygen. So you can only ever see blue blood in your veins.. when it comes out it becomes oxygenated on contact with the air.

Reply 10

saz_1989

it's only blue inside you; on contact with air it turns red.

Reply 11

No Future

gossip_girl

is this cos ive lost weight so they show more? :confused:

Yes, quite possibly. Also, the warmer weather is probably contributing.

Reply 12

Cellardore

ok i might sound totally stupid when i say this :redface:

but i thought that the blue vein was because oxygen hadn't mixed with the blood? as soon as oxygen mixes with the blood it turns red? :confused:

I don't know, i'm just being a dito lol

Reply 13

pink_lucie

ok this thread looks like a science class

Reply 14

Tyler Durden

Cellardore

ok i might sound totally stupid when i say this :redface:

but i thought that the blue vein was because oxygen hadn't mixed with the blood? as soon as oxygen mixes with the blood it turns red? :confused:

I don't know, i'm just being a dito lol

Yeah, you're not the first person on this thread to have thought that. :p:

gossip_girl

ok this thread looks like a science class

You'd better make a run for it then GG. :wink:

Reply 15

**noooni**

i always thought it was because the heamoglobin has lost the oxygen it was carrying ...

Reply 16

pink_lucie

englishstudent

You'd better make a run for it then GG. :wink:

the rudness! :biggrin:

Reply 17

pink_lucie

who ever gave me neg rep for this thread has issues! :mad:

Reply 18

LPK

Lozza

it's only blue inside you; on contact with air it turns red.

I heard that aint true. I used to think that though :frown:

If it turns ouit it is true i will kill the person who told me (if i can remember who it was who told me)

Reply 19

FireFlea

The thing about them being more visible because you lost weight, that's possible as I know a girl who that happened to. But you also said that only the big ones are gross, does that mean what you're seeing is the little purple burst blood vessell-things?