Montreal's Famous St

question 58

Multiple Choice

Montreal's famous St. Laurent Street has, at various times, been home to Jewish, Italian, Portuguese, Spanish, and other ethnic groups over the last 100 years. This is an example of which model?

• A) Multiple-nuclei
• B) Invasion-dispersion
• C) Acculturation
• D) Invasion-succession
• E) Peripheral

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Definitions:

Pacemaker Potential

Pacemaker potential refers to the spontaneous gradual depolarization of the membrane potential in pacemaker cells, leading to the initiation of action potentials in certain heart cells.

SA Node

The sinoatrial node, often described as the heart's natural pacemaker, initiating the electrical impulses that set the pace for cardiac rhythm.

Voltage-gated

Refers to ion channels that open or close in response to changes in electrical potential across a cell's membrane.

Intercalated Discs

Specialized connections between heart muscle cells (cardiomyocytes) that facilitate coordinated contraction.