Given below are two statements:
Statement I: The medulla of the brain is connected to the spinal cord.
Statement II: The medulla contains centres which control respiration, cardiovascular reflexes and gastric secretions.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I and Statement II both are correct.
— Concept: This question tests your knowledge of the structure and functions of the medulla oblongata, a vital part of…Concept: This question tests your knowledge of the structure and functions of the medulla oblongata, a vital part of the hindbrain.
Why (A) is correct:
Statement I is correct because the medulla oblongata is the lowest part of the brainstem and is directly continuous with the spinal cord. This anatomical connection is crucial for relaying signals between the brain and the rest of the body.
Statement II is also correct. The medulla contains several vital control centers, including the respiratory rhythm center (controlling breathing), the cardiovascular center (regulating heart rate and blood pressure), and centers for gastric secretions, swallowing, vomiting, and coughing. These functions are essential for survival.
Why other options are wrong:
Options B, C, and D are incorrect because both statements accurately describe the medulla's anatomy and physiological roles.
NEET Tip: Remember that the medulla is often referred to as the 'vital center' due to its control over essential life-sustaining functions. Damage to the medulla can be fatal.
Correct Answer: (A)
Statement I and Statement II both are correct.