The respiratory system of Popilius disjunctus (Illiger) includes ten pairs of spiracles. The most posterior pair is possibly rudimentary and functionless. Tubular tracheae in all body regions, ...

When the respiratory system is working properly, the air we breathe passes in and out of the lungs through a network of airways. But for people with asthma, even a minor irritant will set off an ...

Measurement of respiratory rate is a vital sign. Nurses need to understand the anatomy and physiology of normal breathing to measure respiratory rate and interpret findings. The second in our ...

The human body is made up of many amazing parts and systems that all work together to keep us healthy. One of the key components of both the respiratory system and the digestive system is the pharynx, ...

Instead, surfactant is also important in narrow tubular respiratory structures such as the terminal airways of mammals and the air capillaries of birds. (3). Insect tracheoles: We investigate the ...