Single Answer MCQ
Q-00001880

What are the different types of reflex arcs in the human body and their significance?

1

Reflex arcs control voluntary actions

2

Reflex arcs are slow-acting responses to stimuli

3

Reflex arcs involve the brain in processing signals

4

Reflex arcs are rapid, involuntary responses that help protect the body

Answer and Solution

Answer

D. Reflex arcs are rapid, involuntary responses that help protect the body

Solution:

Reflex arcs are neural pathways that enable rapid and automatic responses to stimuli without involving conscious thought. They help protect the body from harm by triggering quick reactions, such as pulling away from a hot object or blinking in response to bright light. Therefore, the correct answer is 'Reflex arcs are rapid, involuntary responses that help protect the body'.

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