Conducting cells are specialized muscle cells which function to rapidly spread action potentials over the entire myocardium.

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#Id: 4012

#Unit 7. System Physiology – Animal

The inherent leakiness of the sinus nodal fibers to sodium and calcium ions causes their self-excitation.

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#Id: 2293

#Unit 3. Fundamental Processes

Formation of the closed complex, in contrast, is readily reversible: polymerase can as easily dissociate from the promoter as make the transition to the open complex.

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#Id: 8411

#Unit 2. Cellular Organization

In the absence of Ca2+, muscle is relaxed

TM blocks myosin’s interaction with F-actin

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#Id: 5379

#Unit 10. Ecological Principles

Uniform: Competition may cause a uniform dispersion pattern between individuals. The pattern of trees and seedlings may appear random as seedlings develop from seeds dropped at random.

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#Id: 10022

#Unit 4. Cell Communication and Cell Signaling

Dissociation of cytosolic complex leads to the stabilization of the full-length Ci, which moves into the

nucleus, displaces the repressor Ci75 from the promoter of target genes, and induces expression of target genes.