Membrane Repolarization, Blood Terminology, and Activity Rankings

Membrane Potential and Repolarization

• Repolarization is defined as the phase where the membrane potential returns to $-70$.
• During repolarization, there is an efflux of potassium ions, meaning potassium moves out of the cell.

Medical Terminology and Blood Concentration Terms

• Key terms and prefixes allow for identifying medical conditions even without knowing all surrounding context:
  • Hyper-: A prefix indicating a higher amount or an increased blood concentration.
  • Hypo-: A prefix indicating a decreased amount, lower amount, or an amount that is "less than".
  • Kalemia: Refers specifically to potassium levels in the blood, derived from the chemical symbol $K$ for potassium.
  • Hyperkalemia: Defined as an increased blood concentration of potassium ($K$).
  • Glycemia: Refers to blood sugar levels.

Activity Leaderboard Rankings

• Performance rankings from the interactive review activity:
  • Peach returned to the top $5$ overall, though outside of the top $3$.
  • Apple entered the top $5$ rankings for the first time.
  • Banana placed at position number $3$.
  • Pineapple placed at position number $2$.