The metathoracic accessory pulsatory organ is very small and has no direct channels connecting the dorsalvessel, but there is a pulsating membrane without muscle.
后胸辅搏动器很小，与背血管无直接通道，具有一个没有肌肉的搏动膜。
2
They were documenting the dorsal fins of sharks, as part of an identification program, when a 10-foot-long great white shark suddenly landed on their vessel.
Aims: To introduce the clinical effect of the dorsal cutaneous nerve of fingers nutrient vessel skin flap repairing the paratelum of finger cutaneous deficiency.