Define the location and function of the following structures:
$(1)$ Diaphragm
$(2)$ Pneumotaxic centre

(N/A) $(1)$ Location: It is a dome-shaped muscular partition that separates the thoracic cavity from the abdominal cavity. It is attached to the sternum anteriorly and the vertebral column posteriorly.
Function: It plays a primary role in respiration by contracting and flattening to increase the volume of the thoracic cavity,facilitating inhalation.
$(2)$ Location: It is located in the pons region of the hindbrain.
Function: It regulates the respiratory rhythm centre. Neural signals from this centre can reduce the duration of inspiration and thereby alter the respiratory rate.