Which of the Following Is the Leading Cause of Illness

question 12

Multiple Choice

Which of the following is the leading cause of illness and death in children under 5 years of age throughout the world?

• A) Nutritional deficiencies
• B) Shigella
• C) Dehydration
• D) Diarrhea

---

Definitions:

Acetylcholine

A neurotransmitter in both the central and peripheral nervous systems that plays key roles in arousal, attention, memory, and muscle activation.

Neuromuscular Junction

A specialized synapse between a motor neuron and a muscle fiber, through which signals are transmitted to initiate muscle contraction.

Neurotransmitter

Chemical stored at the ends of axons that is responsible for transmission across a synapse.

Muscle Contraction

The process where muscle fibers shorten or generate tension in response to nervous system signals, allowing movement of the body.