### cell | vegetative cell:

Blood cell
* All blood cells appear to originate from a common progenitor cell or pluripotent.
* All blood cells develop from a parent cell in the bone marrow
  - pluripotential stem cells
  - have limited life spans and are produced throughout the life of an animal
* All blood cells originate and mature in the bone marrow
  - from what is called a stem cell
* Most blood cells are produced within the soft tissue in the bone.
* Some blood cells are part of bloodstreams
  - engulf and destroy other virus infected cells
* are cells which fight disease in the body
  - either white or red
  - made in the bone marrow and in the spleen
  - somatic cells
  - too large to go through the membrane and are returned to the body
* are too large to pass across the semipermeable membrane used in dialysis
  - through the pores
* begin to break down into their component chemicals.
* burst releasing new meorozoites, each one entering a new blood cell.
* can clump together and clog vessels after a meal high in fat.
* circulate for months, while free hemoglobin is short-lived.
* contain hemoglobin, it holds oxygen and carry it throughout the body.
* develop in marrow within bone.
* formed in the bone marrow start out as a stem cell.
* go exactly where they are needed most in the body without ever stopping.
* grow in the bone marrow.
* have potassium in their center which as a positive bioelectric charge
  - has a positve bioelectric charge
* help keep our bodies healthy.
* live for a few weeks, then die off and are recycled.
* look and work differently, but they repair and reproduce themselves in the same way.
* originate from the stem cells which are located in bone marrow.
* receive the oxygen and release carbon dioxide.
* remain in circulation for two to three months.
+ Blood, Where does blood come from?: Biochemistry :: Cardiovascular system
  * Blood cells are made in the bone marrow and in the spleen. The bone marrow is the soft material in the middle of bones. Special cells in the bone marrow make most of the blood cells in your body.

### cell | vegetative cell:

Bone cell
* Some bone cells absorb bone tissue, while others re-form the bone's surfaces.
* Some bone cells are part of alsatians
  - ankles
  - arms
  - backbones
  - beagles
  - bridges
  - bulldogs
  - chests
  - chicks
  - cochleas
  - craniums
  - cygnets
  - doggies
  - ducklings
  - endoskeletons
  - fangs
  - fawns
  - fingers
  - fishbones
  - foxhounds
  - heads
  - incisors
  - jaws
  - knees
  - laps
  - legs
  - mandibles
  - molars
  - necks
  - noses
  - notochords
  - partridges
  - pelves
  - poodles
  - proboscises
  - puppies
  - shinbones
  - skulls
  - snouts
  - spines
  - sterna
  - studs
  - teeth
  - thighs
  - thumbs
  - toes
  - toms
  - tusks
  - vertebrae
  - wishbones
  - wrists
* are composed of Calcium and Phosphorus compounds
  - eukaryotic cells
  - part of bones
* called osteoblasts add calcium to bones, then osteoclasts pull the calcium out of bones
  - create new bone tissue, while cells called osteoclasts destroy it
* called osteoclasts begin the process of remodeling by dissolving or resorbing bone
  - dissolve old bone cells, leaving small cavities
* deprived of nutrients begin to die.
* die if they are unsuccessful in attaching themselves to something.
* extend through canaliculi and pass materials from cell to cell.
* have much longer life span before they are replaced by new cells.

### cell | vegetative cell | bone cell:

Megakaryocyte
* are bone cells
  - hematopoietic cells
  - mildly to moderately decreased
  - numerous
  - prominent, even at low power
  - responsible for production of platelets within the body
  - very important cells because they differentiate into blood platelets
* generate platelets , essential to blood clotting.
* originate from stem cells of the bone marrow.
* produce platelets by pinching off small cell fragments.
* remain in the bone marrow when mature.