Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Anucleated cells, hemoglobin, biconcave disks, produced in bone marrow, live for 90-120
|
Erythrocytes (RBCs)
|
|
|
Heme binding
|
O2-oxyhemoglobin
CO2-carbaminohemoglobin CO-carboxyhemoglobin (strong binding) |
|
|
Biconcave disk function
|
great surface area for O2-CO2 exchange
|
|
|
RBC shape maintainence
|
requires ATP-anaerobic glycolysis or pentose phosphate pathway
|
|
|
hypertonic solution
|
crenation-lose H2O
|
|
|
hyptonic solution
|
hemolysis-hemoglobin dissolves out leaving empty shell/ghost
|
|
|
lose their nucleus
|
before leaving bone marrow
|
|
|
destruction
|
spleen by macrophages and phagocytes in marrow
|
|
|
process of destruction
|
1. engulfed by lysosomal action
2. broken into heme and globin 3. heme broken into ferritin and bilirubin 4. globin dissociated into aa components 5. ferritin-sent to marrow 6. bilirubin-to liver, excreted w/ bile |
