Monday, February 23, 2026
Blood
Arterial blood vs artery blood colour?
What is the buffy coat? Immune cells
Pay attention to Albumin (what’s its function and job?), and Fibrinogen (slide
6)
Why only leukocytes are complete? Because they are true cells because they
have a nucleus
Leucocytes
Never Let Monkeys Eat Bananas (for who is the most important
Neutrophil = bacteria, lymphocyte = virus , monocyte = macrophage ,
basophil=
Erythrocyte Structure
Rbc is a sack of hemoglobin ,no organelles , nothing else
Anaerobic pathway bc its meant to carry oxygen not use it
What is the function of spectrin?
Remember that RBC is 45% hematocrit
Erythrocyte Function
What is the benefit of having Hb packed in RBC vs free in plasma?
-viscosity
- colloidal osmotic pressure
-CO2
-Loss
What is hematopoiesis? Where does it occur in adults?
Erythropoiesis
Proerythroblast can only become rbc (erythrocyte)
The covering is the hemoglobin, the nucleus is inside, eventually the
nucleus leaves, and is just that covering called reticulocyte
In blood cells we also count reticulocyte bc it determines the ability of
your body to make rbc
RBC life span, 1% of the blood cells is reticulocytes
Myeloid lineage
Lymphoid lineage
Hormonal control of erythropoiesis
