Choose the correctly matched pair.a)Fore-brain - Controls posture and ...
- Option A: Fore-brain - Controls posture and balance: This is incorrect. The fore-brain, specifically the cerebrum, is responsible for complex functions such as thinking, voluntary actions, memory storage, and sensory information integration.
- Option B: Mid-brain - Controls voluntary actions: This is incorrect. The mid-brain primarily controls involuntary actions such as changes in pupil size and reflex movements of the head, neck, and trunk.
- Option C: Hind-brain - Controls involuntary actions such as blood pressure: This is correct. The hind-brain, which includes the medulla, controls involuntary actions such as blood pressure, salivation, and vomiting.
- Option D: Cerebellum - Controls memory and thinking: This is incorrect. The cerebellum, part of the hind-brain, is responsible for controlling posture, balance, and the precision of voluntary actions, not memory and thinking.
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Choose the correctly matched pair.a)Fore-brain - Controls posture and ...
Understanding the Brain Regions
The brain is divided into three main parts: the fore-brain, mid-brain, and hind-brain, each responsible for different functions. Let’s delve into the roles of these regions:
Fore-brain
- The fore-brain primarily controls higher cognitive functions, such as thinking, memory, and emotional responses.
- It includes structures like the cerebrum, which is vital for processing sensory information and initiating voluntary actions.
Mid-brain
- The mid-brain acts as a relay station for auditory and visual information.
- It also plays a role in controlling certain voluntary movements but is not the primary controller of all voluntary actions.
Hind-brain
- The hind-brain encompasses structures such as the medulla, pons, and cerebellum.
- It is crucial for regulating involuntary actions, including those that maintain basic life functions like heart rate and blood pressure.
- Therefore, option 'C' is correct because the hind-brain indeed controls involuntary actions.
Cerebellum
- The cerebellum is specifically responsible for coordination and balance, not for memory and thinking.
- It fine-tunes motor activities to ensure smooth and balanced movements.
Conclusion
In summary, option 'C' accurately matches the hind-brain with its role in controlling involuntary actions, while other options misattribute functions to their respective brain parts. Understanding these distinctions is vital for comprehending the complexities of brain function.