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What involuntary actions are controlled by the Medulla in the hindbrain?
- a)Regulation of respiration
- b)Control of posture and balance
- c)Precision of voluntary actions
- d)Reflex movements of head, neck, and trunk
Correct answer is option 'A'. Can you explain this answer?
?
Most Upvoted Answer
What involuntary actions are controlled by the Medulla in the hindbrai...
Involuntary Actions Controlled by the Medulla
The medulla oblongata is a crucial part of the hindbrain, responsible for regulating several vital involuntary actions essential for survival.
Regulation of Respiration
- The medulla plays a key role in controlling the rhythm and rate of breathing.
- It contains respiratory centers that send signals to the diaphragm and intercostal muscles, facilitating inhalation and exhalation.
- It responds to changes in carbon dioxide and oxygen levels in the blood, ensuring the body's respiratory needs are met.
Other Functions of the Medulla
- While respiration is a primary function, the medulla also regulates:
- Heart rate: It influences cardiac function by controlling the autonomic nervous system.
- Blood pressure: It helps in maintaining blood pressure through vasomotor control.
- Reflex actions: The medulla is involved in reflexes such as coughing, sneezing, and swallowing.
Why Other Options Are Incorrect
- Control of Posture and Balance: This function is primarily managed by the cerebellum, which coordinates muscle movements and maintains balance.
- Precision of Voluntary Actions: The motor cortex and basal ganglia are responsible for the precision and coordination of voluntary movements, not the medulla.
- Reflex Movements of Head, Neck, and Trunk: While the medulla does play a role in some reflex actions, it is not the primary center for all reflex movements of the head, neck, and trunk, which involve different neural pathways.
Conclusion
In summary, the medulla oblongata’s primary involuntary action is the regulation of respiration, making option 'A' the correct answer. Its role in maintaining vital functions is essential for life.
The medulla oblongata is a crucial part of the hindbrain, responsible for regulating several vital involuntary actions essential for survival.
Regulation of Respiration
- The medulla plays a key role in controlling the rhythm and rate of breathing.
- It contains respiratory centers that send signals to the diaphragm and intercostal muscles, facilitating inhalation and exhalation.
- It responds to changes in carbon dioxide and oxygen levels in the blood, ensuring the body's respiratory needs are met.
Other Functions of the Medulla
- While respiration is a primary function, the medulla also regulates:
- Heart rate: It influences cardiac function by controlling the autonomic nervous system.
- Blood pressure: It helps in maintaining blood pressure through vasomotor control.
- Reflex actions: The medulla is involved in reflexes such as coughing, sneezing, and swallowing.
Why Other Options Are Incorrect
- Control of Posture and Balance: This function is primarily managed by the cerebellum, which coordinates muscle movements and maintains balance.
- Precision of Voluntary Actions: The motor cortex and basal ganglia are responsible for the precision and coordination of voluntary movements, not the medulla.
- Reflex Movements of Head, Neck, and Trunk: While the medulla does play a role in some reflex actions, it is not the primary center for all reflex movements of the head, neck, and trunk, which involve different neural pathways.
Conclusion
In summary, the medulla oblongata’s primary involuntary action is the regulation of respiration, making option 'A' the correct answer. Its role in maintaining vital functions is essential for life.
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What involuntary actions are controlled by the Medulla in the hindbrain?a)Regulation of respirationb)Control of posture and balancec)Precision of voluntary actionsd)Reflex movements of head, neck, and trunkCorrect answer is option 'A'. Can you explain this answer?? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about What involuntary actions are controlled by the Medulla in the hindbrain?a)Regulation of respirationb)Control of posture and balancec)Precision of voluntary actionsd)Reflex movements of head, neck, and trunkCorrect answer is option 'A'. Can you explain this answer?? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What involuntary actions are controlled by the Medulla in the hindbrain?a)Regulation of respirationb)Control of posture and balancec)Precision of voluntary actionsd)Reflex movements of head, neck, and trunkCorrect answer is option 'A'. Can you explain this answer??.
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