Cardiorespiratory fitness: Cardiorespiratory fitness (endurance), a component of physical fitness is the ability of the circulatory and respiratory systems to supply oxygen during sustained physical activity. Usually expressed as measured or estimated maximal oxygen uptake (VO2 max). Maximal oxygen uptake (VO2 max ) is the body’s capacity to transport and use oxygen during a maximal exertion involving dynamic contraction of large muscle groups, such as during running or cycling. It is also known
* Birds’ respiratory system is the most efficient of all vertebrate animals. Birds need continual air flow to sustain flights. Hence, their respiratory system differs from the “in and out” system of most other animals. This remarkable system allows birds to maneuver acrobatically at altitudes at which most animals would barely survive. *The avian respiratory system is different from that of other vertebrates, with birds having relatively small and non elastic lungs plus air sacs.
Toluene is often used as a solvent in car painting, so toluene vapor can expose the worker through the respiratory tract. Toluene can cause liver dysfunction, lung dysfunction, central nervous system, kidneys, skin, hearing, and vision. This research aimed to analyze the effects of toluene vapor exposure on blood toluene levels, liver dysfunction, and enzyme superoxide dismutase (SOD) levels. This research is an observational cross-sectional study. The population is car painting workers and administrative
What is lung capacity? The total lung capacity (TIC) is the most air that you can inspire into your lungs. It is made up of the following: Tidal volume (TV): the usual amount of the air that you breathe in and out of your lungs with a normal breath. Secondly, the Inspiratory Reserve Volume (IRV); additional air that you can force into your lungs after you breathe in the tidal volume.There is also the Expiratory Reserve Volume (ERV): after you breathe out normally, the ERV is additional air that you
INTRODUCTION The purpose of this respiratory experiment is to measure lung function with the help of a spirometer. A spirometer is an instrument that has a measuring scale attached to it along with a long tube that is used to measure air volume while exhaling. Spirometry testing helps aid in detection of improper lung function and can lead to the diagnosis of various respiratory diseases. In the article, by Schermer, Van Weel, Poels, and Claverley, Spirometry can test for diagnosis of diseases. Previous
ANATOMY OF THORASIC WALL The thorax is the upper part of the trunk, which consists of: a) External musculoskeletal cage (The thorasic wall) ; and b) Internal cavity (That contains heart, lungs, oesophagus, trachea, thymus etc.) Surface Anatomy of Thorasic Wall There are several landmarks and imaginary line to facilitate anatomical descriptions, identification of parts/ areas and to describe lesions and perform dissection. Some of the important landmarks relevant forensic pathologist/ expert are
How to Stop Wheezing Quickly Wheezing, a high-pitched whistling sound is produced when you breathe through narrowed or obstructed respiratory airways. This sound is heard clearly when you exhale. Due to the obstructed airways, breathing can become difficult and you can also have a feeling of tightness in the chest. Additionally, it can cause a feeling of giddiness as well as the lack of energy, due to reduced oxygen in the body. Wheezing is not a health problem in itself. In fact, it is a symptom
thoracic cavity and positive-pressure abdominal cavity. Upon diaphragmatic contraction, the chest wall expands and the increase in the negative intrathoracic pressure required for inhalation is produced. As the diaphragm plays an essential role in respiratory mechanics, any form of diaphragmatic rupture and subsequent herniation of intra-abdominal contents can be associated with significant morbidity and mortality. Diaphragmatic hernias can be classified as either congenital or acquired. While congenital
Intro Changes in respiratory system are progressively recognised as the most profound indicator of patient deterioration. Accurate and timely respiratory assessment is a vital element of holistic patient care. However, studies reveal that many nurses do not believe a respiratory assessment is essential on every patient admitted into a healthcare facility. Despite their importance, respiration rates are documented less often than other vital signs. This essay will highlight the importance of recording
When air-breathing mammals dive to high-pressure depths, lung gases move to the blood and other tissues of the body according to gas tension gradients (Kooyman, 1972). If a mammal’s ascension to the surface occurs too quickly, the pressure releases too suddenly reversing nitrogen into a gas, forming emboli which can obstruct blood flow and cause bone damage (Lippsett, 2005). In the past, it was believed that marine mammals were immune to decompression issues due to adaptations that reduce nitrogen