week 4 (The circulatory system) Flashcards
What substances make up blood
What is albumin, where is it produced, its functions
- Transports other molecules, helps to buffer blood, maintains osmotic pressure of blood (causes a fluid leak of from blood to tissues (h20))
How many hemoglobin and O2 molecules are in a red blood cell
250 million hb and 1 billion O2 molecules
how is erythropoietin stimulated
How does Anaemia occur
oxygen carrying capacity too low to carry out normal metabolic functions
what are the two different Lymphocyte cells and where do they mature
T-lymphocytes (killer) mature in the thymus (attack virus infected and cancerous cells) / B-lymphocytes (minions) mature in red bone marrow and give rise to plasma cells which produce antibodies
what cells are platelets from
megakaryocyte. Fragments of the cell membrane but no nucleus
How is glucose transported into the blood
Sodium dependent gulcose transporter (active transport) not atp requiring co-translocation of Na+ (absorption through the intestine)
Outline the characteristics of these WBC
