The composition of brain stem is:
Correct answer: C. Medulla, pons, midbrain
- A. Spinal cord, axon, vertebra
- B. Cerebrum, cerebellum, pons
- C. Medulla, pons, midbrain
- D. Thalmus, midbrain, pons
Explanation
The brainstem comprises three main parts: the medulla oblongata, the pons, and the midbrain. The medulla oblongata is in charge of crucial functions such as heart rate, breathing, and blood pressure. The pons, on the other hand, serves as a messenger between the brain and the rest of the body and plays a vital role in regulating sleep-wake cycles. Lastly, the midbrain, located between the pons and the thalamus, is responsible for coordinating vision, hearing, and motor control. The brain stem connects the cerebrum to the spinal cord.
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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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