When $CO_2$ concentration in blood increases,breathing becomes

Give the function of the pneumotaxic centre.

Select the correct statements regarding Hering-Breuer reflex.
$i$. Stretch receptors of the lungs are stimulated during maximum forceful expiration.
$ii$. Vagus nerves send impulses to the expiratory center.
$iii$. Prevents lungs from inflation to the point of bursting.
$iv$. Controls depth and rhythm of respiration.
$v$. Promotes the lungs for maximum inflation.
Choose the correct option:

Respiratory centre of the brain is stimulated by

Explain the role of the neural system in the regulation of respiration.

Where does the stimulation for forced breathing originate in the autonomic muscles?