Vertebrae in Biological Dictionary

Vertebral column

... ... The vertebral column consists of 26 vertebrae separated by intervertebral disks. ... The ... usually consists of 33 vertebrae: 24 presacral vertebrae (7 ... The adult vertebral column presents ... definitions ... Vertebral column : The 33 vertebrae fit together to form a flexible, yet ... The ...

Lumbar

... the diaphragm and the sacrum (pelvis). The five vertebrae in the lumbar region of the back are the ... transverse process, and ... The lumbar vertebrae are the largest segments of the movable part of ... with medical definitions ... The 5 lumbar vertebrae are represented by the symbols L1 through L5. ... ...

Vertebrates

... are members of the larger phylum Chordata, and show all of the major ... vertebrae differ considerably in form among different groups of vertebrates . ... ... at the U.S. Geological Survey ... Vertebrates are animals that have vertebrae (or "backbones" as they are commonly ... Vertebrates are any organism ...

Spinal nerve

... of the spinal cord. The spinal nerve is the bit that passes out of the vertebrae through the intervertebral foramen. All spinal nerves ... ... and ... specific level of the spinal cord to a specific ... lumbar, and 5 sacral vertebrae has one pair of spinal nerve roots. ... A spinal nerve has ... ...

Neurula

... Britannica online encyclopedia article on neurula (anatomy), ... and the outlines of the somites show externally. From them, muscles and vertebrae will ... neurula . neuston. neut. neuter. neutral. neutral corner. neutral equilibrium. neutral ground ... Search for " neurula " in all of MSN ...

Myotome

... ... The myotome in zebrafish retains a permanent record of original somite ... Although the contour of the myotome was complex at ages when vertebrae could be ... ... mitotic progenitors colonizes the myotome , initially stemming from the extreme ... is sufficient to promote myotome ...