Two posterior sclerites occur, the distal one with an apodeme.
A long snout and two posterior extensions of the spine and tail that resemble "handles" lend an appearance that is the basis for another common name bellows fish.
The theca, or armour, is composed of many textured plates that form one anterior horn and usually two posterior horns, which may help to slow the sinking of the cells.
The spinal cord is perfused by a single anterior and two posterior spinal arteries.
No trial subjects received prior amalgam restorations, and all were in need of at least two posterior occlusal fillings.
Six human cadaver knees were tested both before implantation and after sequential implantation with two posterior cruciate retaining designs.
In this example, two posterior and one lateral rod with corresponding anchoring screws have been used (a).
Each tray is divided into three sections: one anterior (incisors and canines) and two posterior (premolars and first molars).
We found that when two anterior worm halves were bred together, they produced fewer, smaller eggs with higher hatching rates, compared to two posterior halves.
The two posterior clusters were primarily associated with action processes, in particular with phonology and overt speech (posterior-dorsal cluster) and with rhythmic sequencing (posterior-ventral cluster).
In this patient, the motor and sensory deficits were clinically distinct, indicating the infarction of three spinal arteries (one anterior and two posterior).
