Where is the respiratory rhythm center located?

Which substances when present in high level can activate the chemosensitive area present adjacent to the rhythm centre?

When you hold your breath,which of the following gas changes in blood would first lead to the urge to breathe?

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:

The respiratory rhythm center is located in the .......

Identify the location of the respiratory rhythm center and the pneumotaxic center.
Respiratory rhythm center $\quad$ Pneumotaxic center