Physiology · Skeletal System · Medium
Osteoid
Meaning: Unmineralised organic bone matrix laid down by bone-forming cells before it calcifies.
In practice: Tumour-produced matrix gives a cloud-like density in a teenage bone sarcoma; excess builds up in adult vitamin D deficiency.
Quick check
Two questions on related physiology words.
Which word means: The process of gas exchange and energy production in cells.
Answer: Respiration
Which word means: The ability to identify an object by touch alone, without looking.
Answer: Stereognosis
Words like osteoid come up in the daily game
One medical word a day, then a quick three-question quiz. Free on iPhone, or play in your browser on Android and computer.