In trans interactions (intercellular or adhesive interactions) CAMs on one cell bind to the CAMs on an adjacent cell. 

TLS Online TPP Program

#Id: 5281

#Unit 7. System Physiology – Animal

Positive chronotropic effects are increases in heart rate.

TLS Online TPP Program

#Id: 5282

#Unit 7. System Physiology – Animal

Negative chronotropic effects are decreases in heart rate.

TLS Online TPP Program

#Id: 5283

#Unit 7. System Physiology – Animal

Stimulation of the sympathetic cardiac nerves speeds the depolarization in SA node.

TLS Online TPP Program

#Id: 5284

#Unit 7. System Physiology – Animal

The rate of spontaneous discharge increases Norepinephrine secreted by the sympathetic endings binds to β1 receptors

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#Id: 5285

#Unit 7. System Physiology – Animal

Increase in intracellular cAMP facilitates the opening of L channels, increasing ICa and the rapidity of the depolarization phase of the impulse.

TLS Online TPP Program

#Id: 5286

#Unit 7. System Physiology – Animal

When the cholinergic vagal fibers to nodal tissue are stimulated, the membrane becomes hyperpolarized and the slope of the prepotentials is decreased