Life Lines by Dr. Dolittle

Sponsored by the American Physiological Society

Tag Archive for ‘respiration’

Physiology in Arizona

The Arizona Physiological Society will be hosting their 12th annual meeting Friday and Saturday on the Arizona State University campus. Physiologists from all over the state will be meeting to talk about a variety of topics ranging from comparative physiology to clinical trials. The 2019 Arizona Distinguished Lecturer is Dr. Ralph Fregosi from the University of Arizona in Tucson who specializes in respiratory physiology. The Keynote speaker will be Dr. […]

Continue Reading →

What’s up with those lung valves?

The Plenary Lecture at this year’s Comparative Physiology meeting was given by Dr. Colleen Farmer at Trinity College in Dublin who spoke about the diversity of vertebrate respiratory systems including aerodynamic valves that are found in birds and various species of reptiles. These aerodynamic valves allow air to flow in one direction during both inspiration and expiration as opposed to bidirectional flow in mammals. Examination of red-eared sliders (shown above) […]

Continue Reading →

Snorkeling snails

Scientists have been wondering why Asian Alycaeidae snails have a snorkel that was seemingly functionless. While other snails that live on land have a similar tube with an opening that allows them to breathe while inside the shell, the end of the breathing tube (i.e. snorkel) on the Asian snails appeared to be sealed. A new study published in Biology Letters shows that the tube of Alycaeus conformis is not sealed after all. […]

Continue Reading →