Assertion: platelet | /r/HasProperty | formed in the bone marrow
Facets:
value: from precursor cells
type: OTHER
value: by segmentation of the cytoplasm
type: MANNER
Source sentences:
text: Platelets contain no nuclei and are formed in the bone marrow from precursor cells called megakaryocytes .
text: Platelets are formed in the bone marrow by segmentation of the cytoplasm (the cell substance other than the nucleus) of cells known as megakaryocytes , the largest cells of the marrow.
text: Platelets contain no nuclei and are formed in the bone marrow from precursor cells called megakaryocytes .
text: Platelets are formed in the bone marrow.
text: Platelets are formed in the bone marrow.
text: Like red blood cells, they are formed in the bone marrow, but are much smaller, and are involved in the clotting of blood, helping to stop bleeding in event of injury.
text: Platelets are cell fragments formed in the bone marrow that circulate throughout the bloodstream.
text: Platelets are plate-shaped cells which are formed in the bone marrow, and slowly released into the bloodstream.
text: Platelets are formed in the bone marrow with other blood cells, and any process that affects the bone marrow can decrease the production of platelets.
text: Platelets are formed in the bone marrow from very large cells called megakaryocytes, which break up into fragments -- these cellular fragments are platelets.