PRINCIPLES OF DESIGN OF FLUID TRANSPORT-SYSTEMS IN ZOOLOGY
PRINCIPLES OF DESIGN OF FLUID TRANSPORT-SYSTEMS IN ZOOLOGY
复制标题
DOI：
10.1126/science.2396104
复制
发表时间：
1990-08-31
期刊：
影响因子：
56.9
通讯作者：
LABARBERA, M
中科院分区：
文献类型：
--
作者：
LABARBERA, M
流体输送系统介导生物体内部以及生物体与其环境之间的物质转移。流体输送系统的架构由有效传输过程的小距离以及流体动力学和能量约束决定。生物体内的所有流体输送系统都表现出两种几何形状之一：被平面转移区域中断的简单管道或连接广泛分布的转移区域的分支血管网络；每一个都是由不同的形态发生过程决定的。通过利用血管壁上局部剪应力固有的信号，动物不断进化出复杂的血管分支层次结构，近似于全局最优系统，从而最大限度地降低了流体输送系统的建造和维护成本。
Fluid transport systems mediate the transfer of materials both within an organism and between an organism and its environment. The architecture of fluid transport systems is determined by the small distances over which transfer processes are effective and by hydrodynamic and energetic constraints. All fluid transport systems within organisms exhibit one of two geometries, a simple tube interrupted by a planar transfer region or a branched network of vessels linking widely distributed transfer regions; each is determined by different morphogenetic processes. By exploiting the signal inherent in local shear stress on the vessel walls, animals have repeatedly evolved a complex branching hierarchy of vessels approximating a globally optimal system that minimizes the cost of the construction and maintenance of the fluid transport system.