Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Nervous and Endocrine Systems act together to coordite functions of all body systems.
Reason R: Responses of the endocrine system are often slower but their influence is broader and they regulate all types of body cells.

• A. Both A and R are correct and R is the correct explation of A
• B. Both A and R are correct but R is NOT the correct explation of A
• C. A is correct but R is not correct
• D. A is not correct but R is correct

Hint:

Nervous System = Fast speed, short duration, highly localized targets.
Endocrine System = Slower speed, long duration, broad/widespread targets.
Together, they maintain homeostatic coordition.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
The question examines the integrative physiological roles and functiol differences between the nervous system and the endocrine system in maintaining homeostasis.

Step 2: Key Formula or Approach:
Homeostasis is maintained through neuroendocrine integration:
• Nervous System: Delivers rapid, brief, localized point-to-point electrical/chemical impulses along neurons.

• Endocrine System: Releases hormones into the bloodstream, producing slower, longer-lasting, and widespread regulatory effects across diverse target tissues.

Step 3: Detailed Explation:

• Alysis of Assertion A: Body systems rely on the combined neuroendocrine system to integrate interl functions. The nervous and endocrine systems work synergistically (e.g., via the hypothalamic-pituitary axis) to control physiological processes. Thus, Assertion A is correct.

• Alysis of Reason R: Endocrine sigls travel through blood circulation, causing their onset of action to be slower than nerve impulses. However, because hormones circulate systemically to reach all cells possessing complementary receptors, their effects are widespread and long-lasting. Thus, Reason R is correct.

• Causal Relationship: The dual ture of neuroendocrine regulation (fast/localized neural responses combined with slow/broad endocrine actions described in Reason R) explains how both systems effectively coordite all body functions together. Thus, R is the correct explation of A.

Step 4: Fil Answer:
Both A and R are correct, and R provides the correct explation of A.