What’s the difference between bronchi and bronchioles?

The difference between bronchi and bronchioles is cartilage.

Bronchi have cartilaginous support in the connective tissue that helps keep them open even if the smooth muscle contracts in response to an irritant.

Bronchioles, by contrast, are smaller, have no cartilaginous support, and are at the end of the respiratory conducting system, the tubes that lead directly into alveoli, the gas-exchange epithelium. If the smooth muscle contracts, these tubules can close almost completely, making it very difficult for air to reach the alveoli.

This is what commonly happens in asthma, and it can be a life-threatening condition. Beta-adrenergic agonists of the sort found in “rescue inhalers” can help relax bronciolar smooth muscle and relieve the respiratory symptoms.

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.