The spelling of "tissue respiration" is quite straightforward when broken down phonetically. "Tissue" is pronounced /ˈtɪʃuː/, with the initial "t" being a voiceless dental stop, the following "i" sound like the "i" in "bit", and the two "s's" being pronounced as a voiceless postalveolar fricative. "Respiration" is pronounced /ˌrɛspəˈreɪʃən/, with stress on the third syllable. It starts with a voiced postalveolar fricative "r" followed by the "eh" as in "pet" vowel sound and the "s" sound again. It ends with stress on the "ay" as in "day" diphthong and has a final "n" at the end.
Tissue respiration is a physiological process by which living organisms take in oxygen and release carbon dioxide at the level of the individual cells, allowing for the exchange of gases necessary for cellular metabolism. It represents the supply of oxygen to tissues along with the removal of carbon dioxide as a byproduct of cellular respiration.
During tissue respiration, oxygen is required for energy production in cells through a biochemical process called aerobic respiration. This process occurs within mitochondria, the energy-producing organelles of cells. Oxygen molecules are transported through the bloodstream to reach the tissues, where it diffuses into the cells. Inside the mitochondria, oxygen combines with glucose molecules derived from food to produce adenosine triphosphate (ATP), the main source of cellular energy. As a result, carbon dioxide is released as a waste product and diffuses back into the bloodstream before being transported back to the lungs for exhalation.
Efficient tissue respiration is crucial for the survival and functioning of living organisms. Oxygen is necessary for various cellular activities, including muscle contraction, metabolic reactions, and overall maintenance of cellular homeostasis. Inadequate tissue respiration can lead to various health issues, such as oxygen deprivation, tissue damage, and impaired cellular functioning. Therefore, tissue respiration is a fundamental process that ensures the continuous supply of oxygen to cells and helps maintain normal physiological functions throughout the body.
The interchange of gases between the blood and the tissues.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "tissue respiration" combines two terms: "tissue" and "respiration". Here is the etymology of each term individually:
1. Tissue:
The word "tissue" has its origins in the Latin word "tessera", which means a small square. In the late 14th century, it started being used in English to refer to a "continuous web-like structure" or a "conglomeration of similar cells forming a particular structure in an organism". The Latin word "tessera" is derived from the Greek word "tessera", meaning a "four-sided figure" or a "cube".
2. Respiration:
The word "respiration" comes from the Latin word "respirare", meaning to breathe or breathe out.