binds reversibly with oxygen and makes up 97% of cell volume
Hemogoblin
Most blood cells originate in-
bone marrow and do not divide
tiny connecting blood vessels
Capillaries
provides flexibility to change shape
Spectrin
dedicated to respiratory gas transport
RBCs
is composed of 4 polypeptide chains
goblin
what are the 4 polypeptide chains?
2 alpha & 2 beta chains
What produces Oxyhemoglobin?
O2 loading in lungs
What produces Deoxyhemoglobin?
O2 unloading in lungs
is the process of RBCs that takes about 15 days
erythropoiesis
red blood cells live up to-
120 days/4 months
Percent of blood volume that is RBCs
Hematocrit
Show scarlet red blood
High O2
Show dark red blood
Low O2
Makes up 60% of plasma proteins
Albumin
remain in blood not taken up by cells; produced mostly by liver
Plasma protein
Platelet formation is regulated by
thrombopoietin
Formed in myeloid line from
megakaryoblast
- Mitosis occurs but no cytokinesis, resulting in large stage IV cell with multilobed nucleus
megakaryoblast
arise from myeloid line stem cells
Myeloblasts
accumulate lysosomes
Promyelocytes
accumulate granules
Myelocytes
nuclei form curved arc
Band cells
production of WBCs are stimulated by two types of chemical messengers from red bone marrow and mature WBCs
Leukopoiesis
act against virus-infected cells and tumor cells
T lymphocytes (T cells)
give rise to plasma cells, which produce antibodies
B lymphocytes (B cells)
lack visible cytoplasmic granules
Agranulocytes
Neutrophils, eosinophils, basophils are
Granulocytes: three types