Answer :
Answer and explanation :
there are many problem due to lack of pneumotaxic and stetch receptor neurons on ventilation
DUE TO LACK OF PNEUMOTAXIC CENTER :
- pneumotaxic center is present in the nucleus which is used to transmit impulse to the inspiratory area which is not possible due to lack of pneumotaxic center
- it controls the duration of filling of lungs
- it also control the medullary respiratory system which is not possible due to lack of this
DUE TO LACK OF STRETCH RECEPTOR :
- The hearing breuer inflation reflex is generated by stretch receptor neuron which is not generated due to lack of stretch receptor
- when stretched these receptors send the inhibitory impulses through the vegus nerve to the DMG neuron which is not possible due to lack of this
Final answer:
The absence of pneumotaxic and stretch receptor neurons would disrupt the regulation of breathing rate and the ventilatory response to physical activity, affecting the body's ability to maintain homeostasis during rest and exercise.
Explanation:
The lack of pneumotaxic and stretch receptor neurons has a significant effect on ventilation. The pneumotaxic center, located in the pons, helps regulate the rate of breathing by inhibiting the activity of the neurons in the dorsal respiratory group. Stretch receptors in muscles, joints, and tendons, known as proprioceptors, provide a stimulus that can trigger the respiratory centers of the brain to adjust breathing during activities like exercise.
Without the pneumotaxic center, the body may lose the ability to properly regulate the rate of breathing, possibly leading to an erratic or inefficient breathing pattern. The absence of proprioceptive feedback from the stretch receptors could result in a diminished respiratory response to physical activity, thereby affecting the necessary increase in ventilation that generally corresponds with exercise. Overall, these deficiencies can impair the body's ability to maintain homeostasis during various states of physical activity and rest.
