James Is in His Mid-40s and Has Little Time to Exercise

question 60

Multiple Choice

James is in his mid-40s and has little time to exercise as he runs a business. However, he knows that he should focus more on his health, eat healthy meals at regular intervals, and exercise as often as he can. One of the age-related conditions that James is most likely to face at his age is

• A) increased strength in his upper arms.
• B) sensitivity to high-pitched sounds.
• C) joint stiffness.
• D) decreased bladder control.

---

Definitions:

Plasma Membrane

Acting as a regulatory boundary, the plasma membrane delineates the cell's internal environment from the external world, overseeing the transport of substances into and out of the cell.

Interneurons

Neurons that transmit signals between sensory and motor neurons, playing critical roles in reflexes and neuronal circuits.

Central Nervous System

Part of the nervous system consisting of the brain and spinal cord, responsible for processing information and coordinating activity throughout the body.

Myelin Sheath

The white, fatty material that forms a sheath around the axons of certain nerve cells, which are then called myelinated fibers.