K.C.S.E Biology Q & A - MODEL 2012PP1QN06
The diagram below represents part of the gaseous exchange system in human.
(a) Name the parts labelled F and G.
(b) State one function of each of the parts labelled H and J.
(a) F - Bronchiole;
G - Intercostal muscles/external intercostal muscles;
(b) H - (Pleural membranes) secretes encloses pleural fluid to lubricate lungs/protect lungs;
J - (Diaphragm) separates chest cavity from abdominal cavity/works to effect volume and pressure changes in chest cavity necessary for inhalation and exhalation!