Which of the Following Is an Example of Primary Aging

question 34

Multiple Choice

Which of the following is an example of primary aging?

• A) blurred vision from macular degeneration
• B) lung cancer from smoking cigarettes
• C) weight gain from a sedentary lifestyle
• D) high blood pressure from prolonged stress

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Definitions:

Sodium Channels

Protein channels located in cell membranes that allow the passage of sodium ions in and out of the cell, playing a crucial role in generating electrical signals in neurons and muscle cells.

Motor End Plate

A region of muscle fiber membrane that receives signals from nerves, triggering muscle contraction.

Presynaptic Membrane

The part of the nerve cell that is situated at the synapse and releases neurotransmitters in response to a nerve impulse.

Motor Neuron

A motor neuron is a nerve cell that initiates and transmits a signal to a muscle or gland to trigger a response.