SA node has Prepotential or pacemaker potential which is the gradual potential rise from the resting membrane potential to threshold  ( -40 mV) & this occur spontaneously

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#Id: 9548

#Unit 11. Evolution and Behavior

Neo-Lamarckism - August Weismann

cut off the tails of mice for many generations and showed that this mutilation had no effect on the tail length of their descendants.

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#Id: 1915

#Unit 4. Cell Communication and Cell Signaling

T-dependent (TD) response

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#Id: 5659

#Unit 7. System Physiology – Animal

Cochlea has three chambers: 

scala vestibuli

scala media

scala tympani

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#Id: 1334

#Unit 4. Cell Communication and Cell Signaling

The pertussis toxin, produced by Bordetella pertussis Catalyze a covalent modification of the Gαi protein preventing GDP-GTP exchange.

TLS Online TPP Program

#Id: 9100

#Unit 4. Cell Communication and Cell Signaling

In response to activation of acetylcholine GPCRs, PLC, and the elevation in cytosolic Ca²+, Nitric oxide is synthesized in endothelial cells.