Vascular anatomy of the counter-current heat exchanger of skipjack tuna.
Vascular anatomy of the counter-current heat exchanger of skipjack tuna.
复制标题
鲣鱼逆流换热器的血管解剖。
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
J. Kendall
中科院分区：
文献类型：
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作者：
E. Stevens;H. Lam;J. Kendall
1. 描述了鲣鱼逆流换热器的解剖结构，并分析了血流模式。
2. 血流模式是从背主动脉，通过交换器到节段动脉到组织，从组织到节段静脉，然后通过交换器返回到后主静脉。
3. 交换器中的血管与全身小动脉和小静脉的大小大致相同，长约 10 毫米。 2公斤重的金枪鱼中，每种类型约有125000个。
4. 交换器中的血流速度约为背主动脉和后主静脉的血流速度的 1/80，从而有时间进行热传递。
5. 由于交换器提供的阻力，分段静脉中有许多阀门，这是可以预料的。
6. 金枪鱼热交换器中的容器比鳔网中的容器大一个数量级，因此允许热传递但阻止气体传递。
这项研究得到了 NIH 向 EDS 提供的编号为 HL 16716 的研究拨款的支持。
1. The anatomy of the counter-current heat exchanger of skipjack tuna is described and the pattern of blood flow is analysed.
2. The pattern of blood flow is from the dorsal aorta, through the exchanger to segmental arteries to the tissues, from the tissues to segmental veins and back through the exchanger to the post-cardinal vein.
3. The vessels in the exchanger are about the same size as systemic arterioles and venules and are about 10 mm long. There are about 125000 of each type in a 2 kg tuna.
4. The velocity of blood flow in the exchanger is about 1/80th of that in the dorsal aorta and post-cardinal vein allowing time for heat transfer.
5. There are many valves in the segmental veins which may be expected because of the resistance offered by the exchanger.
6. The vessels in the tuna heat exchanger are an order of magnitude larger than those in the swim-bladder rete, thus permitting heat transfer but preventing gas transfer.
This investigation was supported by NIH research grant number HL 16716 to EDS.