Duodenitis
发表于 2025-3-30 09:26:20
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Pericarditis
发表于 2025-3-30 16:18:25
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轻浮思想
发表于 2025-3-30 20:27:03
Concluding Remarks and Some Future Research,nt. This produces the same overall current change as an inward current activated by hyper polarization; but had nature really developed two systems for producing this current change in the heart by such different means? It seemed rather unlikely.
壕沟
发表于 2025-3-30 21:43:11
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用手捏
发表于 2025-3-31 03:12:16
Introductionbeat intervals not exceeding 2%. The pacemaker that is the source of this regular excitation is localised normally within the sinus node (= sino-atrial node = node of Keith and Flack), a most intriguing small piece of tissue in the caval corner of the right atrium. A small portion of this node conta
figure
发表于 2025-3-31 05:09:15
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APO
发表于 2025-3-31 11:59:14
On the Ultrastructural Identification of Pacemaker Cell Types within the Sinus Nodeis located in the intercaval region, 0.5 – 2 mm away from the medial border of the crista terminalis. It contains typical nodal cells, and is part of a much larger group of cells that all show diastolic depolarization. This latter group of cells, which under standard conditions (see Bleeker et al.,
刻苦读书
发表于 2025-3-31 16:04:04
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无政府主义者
发表于 2025-3-31 21:32:13
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CLASP
发表于 2025-3-31 22:36:15
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