Question

If birds have hollow bones then where does the RBC formation takes place in them?

Answer 1

Bone marrow in flat bones, as i told you in your previous question :)

Answer 2

birds have flat bones? they are hollow or solid?

Answer 3

When they contain bone marrow, would you call it solid?

Answer 4

u sure they have bone marrow?

Answer 5

If they didn't had bone marrow, they couldn't produce blood
This is how a hollow bird bone looks:

Answer 6

so is there any difference in the RBCs of birds except size

Answer 7

Yes bird RBC's contain nuclei

Answer 8

Ohh u mean to say RBCs in mammals are without nucleus?
but nuclei presence in RBC how does it make them different?

Answer 9

Because bird RBC's have a nucleus, the RBC's can carry less oxygen in the haemoglobin.

Answer 10

but if it carries less O2 then how is Aerobic respiration possible in wings region?

Answer 11

their capillaries are bigger in diameter so more erythrocytes can flow through :)

Answer 12

Atlast the conclusion is that the birds have flat bones which are hollow and their RBCs are nucleated which carry less o2 in haemoglobin and RBCs are formed in the bone marrow.

Answer 13

is that correct now?

Answer 14

yep

Answer 15

Noo.. their bones don't have bone marrow!
I just read it in my book.

Answer 16

So how would birds produce new RBC's without bone marrow?

Answer 17

"That's wat my ques. is"

Answer 18

Oke I found the following:
Birds do have bone marrow in their hollow bones, it's just a very thin layer.
They don't need much bone marrow because the RBC's in birds have nuclei and that allows them to divide while in they're in the blood circulation.

I hope that answers your question :)