bone marrow

1. The fatty network of connective tissue that fills the cavities of bones (synset 105293122)
   is a type of: connective tissue - tissue of mesodermal origin consisting of e.g. collagen fibroblasts and fatty cells; supports organs and fills spaces between them and forms tendons and ligaments
   subtypes:

   • red bone marrow, red marrow - bone marrow of children and some adult bones that is required for the formation of red blood cells
   • yellow bone marrow, yellow marrow - bone marrow that is yellow with fat; found at the ends of long bones in adults
   is a part of:

   • bone, os - rigid connective tissue that makes up the skeleton of vertebrates
   • immune system - a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response
   same as: marrow
2. Very tender and very nutritious tissue from marrowbones (synset 107889033)
   is a type of: dainty, delicacy, goody, kickshaw, treat - something considered choice to eat
   is a part of: marrowbone - a bone containing edible marrow; used especially in flavoring soup
   same as: marrow

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