Constants | Periodic Table Part A NOTE: The activity in this item uses Flash, an

Question

Constants | Periodic Table Part A NOTE: The activity in this item uses Flash, and is therefore not screen-reader accessible, and may not work on a mobile device. If the browser you're using no longer supports Flash, try a different browser and download the Flash plug-in for this content Using no more than 13 propositions, create a Concept Map to describe ionic movement during action potentials in cardiac pacemaker and contractile cells, and trace the conduction pathway. AV nodes, bundles, branches, and Purkinje fibers Launch Concept Map Your current score on this part is 0%. Click "Submit" below to record your score are specifically made of directly trigger atria to contract and activate Ca2 ions Submit directy trigger ventricles to contract and activate cardiac muscle fibers Part B This question will be shown after you complete previous question(s). enter plateau phase due to slow influx of K ions Part C This question will be shown after you complete previous question(s). rapidly depolarize due to influx of Na ions Part D This question will be shown after you complete previous question(s). pacemaker cells repolarize due to efflux of Part E This question will be shown after you complete previous question(s). slowly depolarize due to influx of SA nodes Provide Feedback

Explanation / Answer

AV node, bundles, branches and purkinje fibers are specificially made of cardiac muscle fibers which directly trigger ventricles to contract and activate. SA node directly trigger atria to contract and activate. Pacemaker cells rapidly depolarizes due to influx of Ca++ ions, repolarize due to efflux of K+ ions and slowly depolarize due to influx of Na+ ions.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---