Which of the Following Is an Effect of Aging on the Muscular

question 9

Multiple Choice

Which of the following is an effect of aging on the muscular system?

• A) Tolerance for exercise increases.
• B) Skeletal muscles become more elastic.
• C) Skeletal muscle fibers become smaller in diameter.
• D) Muscle fibers contain more myoglobin.
• E) Scar tissue formation does not occur.

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Definitions:

Reuptake

A process in neurotransmission where neurotransmitters released into the synaptic gap are reabsorbed back into the pre-synaptic neuron, affecting the intensity and duration of neurotransmission.

Synapse

The junction between two neurons or a neuron and a muscle cell where electrical or chemical signals are transmitted across the gap.

Neurotransmitter

Chemicals in the brain that transmit signals from one neuron to another, playing key roles in brain function and mood regulation.

Limbic System

A complex system of nerves and networks in the brain, involved with the control of emotions and memory.