Avian Ventilation and Ventilators | The Institute for Creation Research

Avian Ventilation and Ventilators
During this time of the devastating COVID-19 pandemic, medical science is seeking a vaccine as well as drugs that will treat the symptoms. In the meantime, much has been reported on the ventilator, a lifesaving device that is used on the most serious cases. According to Wikipedia, “a ventilator is a machine that provides mechanical ventilation by moving breathable air into and out of the lungs, to deliver breaths to a patient who is physically unable to breathe, or breathing insufficiently.”1 Ventilators have been used in American hospitals for 60 years.

"The ventilator is the difference between life or death for people with severe COVID-19," says Brian Oliver, a respiratory disease researcher at University of Technology Sydney in Australia.2 General Motors and MIT, as well as other companies, are working to produce a family of newly-designed ventilators, but such design and planning takes time.

Vertebrates (animals with a backbone) also depend on a specially designed system to enable their breathing. Thanks to bones and muscles, rhythmic breathing movements bring life-giving air across the respiratory surfaces in their lung(s). This is called ventilation.

One of the most complex and frequently researched areas of ornithology is the respiratory system of the bird and how it achieves this ventilation. There’s nothing simple about the multiple air sacs, pneumatic bones, parabronchi, lung, and trachea (including the amazing syrinx3) of the bird. The remarkable design of this sophisticated avian ventilation far exceeds the life-saving 21st-century ventilator.

The gross mechanics of ventilation in the bird is fairly straightforward. The ribs are hinged at the sternum, the “breastbone” found at the mid-ventral line of the thorax, and to each other. When the sternum is lowered, the rib cage expands and inhalation occurs. When the sternum is elevated, the air sacs are compressed and air is expelled. The small air sacs of the bird are thin-walled expanded bronchi in the thorax and abdomen. They are connected to the lung by very small tubes and also enter the pneumatic bones and form air spaces. In the lung, air flows through the tiny pores (parabronchi) in a one-way direction. This is unlike airflow in people, where the inhaled air terminates in grape-like clusters called alveoli. People and mammals are designed with a characteristic tidal rhythm of ventilation that is not found in birds.

The airflow through the bird’s respiratory system is anything but simple.

Within this vast system of connecting passageways, there are no valves to suggest what the pattern of airflow might be. This has led to much speculation about the roles played by the different parts of the respiratory system.4

We thank God for the technology that gave medical science these ventilators. Nothing was left to chance as the life-saving ventilation units were designed and constructed. How much more so as we view the vastly superior and created ventilation of the bird!

References
1. Ventilator. Wikipedia.org. Accessed April 23, 2020.
2. Ryan, J. Coronavirus ventilators: Why one machine is pivotal in the battle against COVID-19. Posted on cnet.com April 2, 2020, accessed April 23, 2020.
3. Sherwin, F. 2019. The Syrinx Song. Acts & Facts. 48 (8).
4. Kardong, K. 2012. Vertebrates. 6th edition. McGraw-Hill, 438.

*Mr. Frank Sherwin is Research Associate at the Institute for Creation Research and earned his master’s degree in invertebrate zoology from the University of Northern Colorado.
The Latest
NEWS
May 2025 ICR Wallpaper
"Now may the God of hope fill you with all joy and peace in believing, that you may abound in hope by the power of the Holy Spirit." (Romans...

NEWS
Acoustic Communication in Animals
We are all familiar with vocalizations in the animal world. For example, dogs bark, birds sing, frogs croak, and whales send forth their own distinct...

ACTS & FACTS
Creation Kids: Crystals!
by Michael Stamp and Susan Windsor* You're never too young to be a creation scientist and explore our Creator's world. Kids, discover...

APOLOGETICS
Playing Chess with Little Furry Critters
God’s multifarious and marvelous designs for basic creature needs are so innovatively clever and providentially purposeful that Christ’s...

ACTS & FACTS
Credit Only Our Creator
History was my favorite subject as a young kid. But it always puzzled me when my teachers said, “We study history so that we don’t repeat...

ACTS & FACTS
Genomic Tandem Repeats: Where Repetition Is Purposely Adaptive
Tandem repeats (TRs) are short sequences of DNA repeated over and over again like the DNA letter sequence TACTACTAC, which is a repetition of TAC three...

ACTS & FACTS
Dinosaur National Monument: Fossil Graveyard of the Flood
Straddling the border of Utah and Colorado, Dinosaur National Monument (DNM) is one of the richest exposures of dinosaur fossils in the world.1...

ACTS & FACTS
The Transforming Influence of Genesis: Worker Dignity and Safety
When Pharisees questioned the Lord Jesus about marriage, He answered by quoting Genesis 1:27: “But from the beginning of the creation, God ‘made...

NEWS
Giant ''Meg'' Shark: Longer and Leaner?
Fossil remains of the giant shark Otodus megalodon have been found in Miocene1 and Pliocene2 rock layers, which ICR scientists...

CREATION.LIVE PODCAST
Searching for Truth Across the Globe | Creation.Live Podcast:...
How can we bring the Gospel of Jesus Christ and the truth of creation to others outside our small spheres of influence?   Host...