Observe the below diagram and find the correct functions of the labelled part R:
Correct answer: A. Pons → Rate or pattern of breathing
- A. Pons → Rate or pattern of breathing
- B. Medulla → Heart-rate
- C. Midbrain → Reflexes
- D. None
Explanation
Pons (R) regulates the rhythm and pattern of breathing, while the medulla controls heart rate and the midbrain coordinates reflexes.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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