tetany, contractures, and dystonic cramps.
- True rib
The lower five ribs do not directly connect to the sternum and are known as false ribs. The upper three false ribs connect to the costal cartilages of the ribs just above them. The last two false ribs, however, usually have no ventral attachment (no anchor at all in front) and are called floating, fluctuating […]
To shorten, to cut short. A malformation (birth defect) may truncate a limb. A mutation may create a stop codon that truncates a protein. From the Latin truncare maening to cut short or mutilate from truncus, trunk.
- Trunk bones
The 51 trunk bones consist of 26 vertebrae, 24 ribs, and the sternum. The 26 vertebrae comprise 7 cervical, 12 thoracic, and 5 lumbar vertebrae, plus the sacrum and the coccyx. The 24 ribs comprise 14 true ribs, 6 false ribs, and 4 floating ribs. The sternum is the breastbone. Along with the bones of […]
The tuberous sclerosis 1 gene. The product of the TSC1 gene is a protein called hamartin. This protein interacts with tuberin, the product of the TSC2 gene. These two proteins form a complex and play a role in cell growth and division. TSC1 functions as a tumor suppressor gene. Mutation in the TSC1 gene causes […]
The tuberous sclerosis 2 gene. The product of the TSC2 gene is a protein called tuberin. This protein interacts with hamartin, the product of the TSC1 gene. These two proteins form a complex and play a role in cell growth and division. The complex of these two proteins also controls how materials are transported within […]