Save. Lightheadedness can be caused by a variety of conditions. It is a fainting or dizzy sensation primarily caused by a decrease in blood flow to the brain. High blood pressure, heart attack, pregnancy, anxiety and depression are common reasons why an individual may experience feeling lightheaded.eart Attack. Heart attacks are caused by low blood flow to the heart. The heart can die or become permanently damaged. If lightheadedness accompanies chest pain, change in vision or loss of speech, this could be a sign of a heart attack.
ossify - make rigid and set into a conventional pattern; rigidify the training schedule; ossified teaching methods; slogans petrify our thinking rigidify, petrify stiffen - make stiff or stiffer; Stiffen the cream by adding gelatine
Ossification (or osteogenesis) in bone remodeling is the process of laying down new bone material by cells called osteoblasts.It is synonymous with bone tissue formation.There are two processes resulting in the formation of normal, healthy bone tissue: Intramembranous ossification is the direct laying down of bone into the primitive connective tissue (mesenchyme), while endochondral ossification involves cartilage as a precursor.alcification is synonymous with the formation of calcium-based salts and crystals within cells and tissue. It is a process that occurs during ossification, but not vice versa. The exact mechanisms by which bone development is triggered remains unclear, but it involves growth factors and cytokines in some way.