What Percentage of Men Report Having Achieving or Maintaining an Erection

question 29

Multiple Choice

What percentage of men report having achieving or maintaining an erection by age 60?

• A)90%
• B)70%
• C)50%
• D)30%

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Definitions:

Voltage-Gated

Pertaining to ion channels that open or close in response to changes in membrane potential, playing a critical role in the conduction of electrical signals in neurons.

Neuronal Membrane

The lipid bilayer that surrounds a neuron, maintaining the cell's structure and contributing to its function by regulating the movement of ions and molecules.

Activation Gate

In the context of cell membrane channels, this refers to a mechanism that opens or closes ion channels in the cell membrane in response to physiological stimuli.

Transport Pump

Proteins in cell membranes that use energy to move substances across the membrane, often against a concentration gradient.