Question:
The main function of the red nucleus is to
The main function of the red nucleus is to
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The red nucleus is a midbrain structure of the motor system.
Updated On: Nov 12, 2026
- regulate breathing and heart rate.
- control posture and muscle tone.
- secrete melatonin hormone.
- regulate auditory reflexes.
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
The red nucleus is grey matter in the midbrain linked to the extrapyramidal motor system.
Step 2: Function
It receives input from the cerebellum and cerebrum and sends signals down the rubrospinal tract.\nThis adjusts muscle tone and posture.
Step 3: Eliminate others
Breathing and heart rate are controlled by the medulla and melatonin comes from the pineal gland.
Final Answer:
The red nucleus controls posture and muscle tone. \[ \boxed{\text{(B) }\text{control posture and muscle tone}} \]
The red nucleus is grey matter in the midbrain linked to the extrapyramidal motor system.
Step 2: Function
It receives input from the cerebellum and cerebrum and sends signals down the rubrospinal tract.\nThis adjusts muscle tone and posture.
Step 3: Eliminate others
Breathing and heart rate are controlled by the medulla and melatonin comes from the pineal gland.
Final Answer:
The red nucleus controls posture and muscle tone. \[ \boxed{\text{(B) }\text{control posture and muscle tone}} \]
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