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Histology Art (MT 30 – I) 2022 4 years, 4 months ago Histology Art for the Respiratory System (Colored Pencils)
Bronchial Tree. After entering the lungs, the main bronchi subdivide into smaller and smaller branches (secondary and tertiary bronchi, and so on), finally ending in the smallest of the conducting passageways, the bronchioles. Because of this branching and rebranching of the respiratory passageways within the lungs, the network formed is often referred to as the bronchial, or respiratory tree.
Alveoli. The terminal bronchioles lead into respiratory zone structures, even smaller conduits that eventually terminate in alveoli, or air sacs. The respiratory zone, which includes the respiratory bronchioles, alveolar ducts, alveolar sacs, and alveoli, is the only site of gas exchange
FUN FACTS:
1. The left lung tends to be smaller than the right lung in people to accommodate for the heart, which is located on the left side of the body.
2. Lungs can float on water. They are the only body organs that can float, largely related to the air that is contained within alveoli.
3. If the lungs were unfolded and expanded out to their fullest size, they’d be roughly the size of a tennis court.
4. The lung capacity of an adult is approximately 4 to 6 liters of air. Males tend to have larger lung capacity than females. We only breathe in about 0.5 liters with each breath.
5. A portion of the air you breathe never reaches the alveoli. It is referred to as dead air because it isn’t used in gas exchange.
https://training.seer.cancer.gov/anatomy/respiratory/
https://training.seer.cancer.gov/anatomy/respiratory/passages/larynx.html
https://biologydictionary.net/respiratory-system-fun-facts/
Marieb, E. N., & Keller, S. M. (2018). The Respiratory System. In E. N. Marieb, & S. M. Keller, Essentials of Human Anatomy & Physiology (12th Edition) (pp. 469-470). New York City: Elsevier.
Kia’i N, Bajaj T. Histology, Respiratory Epithelium. [Updated 2021 May 10]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK541061/