Results 161 to 170 of about 1,057,221 (212)
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2022
This chapter explores the anatomy and function of the respiratory system. Respiration can be divided into cellular respiration, which produces adenosine triphosphate (ATP) from the breakdown of nutrients, and external respiration, wherein gaseous exchange takes place with the air in the lungs to take in oxygen and breathe out carbon dioxide ...
Jon Scott +9 more
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This chapter explores the anatomy and function of the respiratory system. Respiration can be divided into cellular respiration, which produces adenosine triphosphate (ATP) from the breakdown of nutrients, and external respiration, wherein gaseous exchange takes place with the air in the lungs to take in oxygen and breathe out carbon dioxide ...
Jon Scott +9 more
openaire +1 more source
2018
The respiratory system in relation to dentistry is the topic of this chapter. Gaseous exchange in the lungs is mainly controlled by central chemoreceptors sensing a change in the pH of the cerebrospinal fluid. These receptors then activate a respiratory response which returns the blood and cerebrospinal fluid pH to normal. Localized airway obstruction,
Rebecca Craven, Hugh Devlin
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The respiratory system in relation to dentistry is the topic of this chapter. Gaseous exchange in the lungs is mainly controlled by central chemoreceptors sensing a change in the pH of the cerebrospinal fluid. These receptors then activate a respiratory response which returns the blood and cerebrospinal fluid pH to normal. Localized airway obstruction,
Rebecca Craven, Hugh Devlin
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Aging and the respiratory system
Aging Clinical and Experimental Research, 1996All the components of the respiratory system are affected by aging, though at different rates: i) the lung elastic recoil decreases; ii) PaO2 decreases and the D(A-a)O2 increases; iii) the chest wall becomes stiffer; iv) the inspiratory muscles loose strength; and v) the respiratory centres are less sensitive.
A. ROSSI +3 more
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2013
The respiratory tract is a complex organ system both macroscopically and microscopically, with many different functions and cell types localized throughout the nasopharyngeal, tracheobronchial, and pulmonary segments. Exposure to xenobiotics occurs via inhalation and via the blood following ingestion, dermal exposure, or parenteral administration ...
Kristen J. Nikula +2 more
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The respiratory tract is a complex organ system both macroscopically and microscopically, with many different functions and cell types localized throughout the nasopharyngeal, tracheobronchial, and pulmonary segments. Exposure to xenobiotics occurs via inhalation and via the blood following ingestion, dermal exposure, or parenteral administration ...
Kristen J. Nikula +2 more
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2008
Publisher Summary Many unexplained incidences of respiratory disease are shown to occur when exposures are to chemical mixtures that are composed of at least one lipophile and one hydrophile. This chapter addresses the effects of chemical mixtures on the respiratory system.
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Publisher Summary Many unexplained incidences of respiratory disease are shown to occur when exposures are to chemical mixtures that are composed of at least one lipophile and one hydrophile. This chapter addresses the effects of chemical mixtures on the respiratory system.
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Anaesthesia & Intensive Care Medicine, 2011
Abstract The diaphragm is unique to mammals. It is mainly responsible for quiet respiration and accounts for up to 75% of total tidal volume. Its nerve supply from the phrenic nerve (derived from cervical segments C 3, 4, 5 on either side) is explained by its embryological origin by caudal migration of the septum transversum.
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Abstract The diaphragm is unique to mammals. It is mainly responsible for quiet respiration and accounts for up to 75% of total tidal volume. Its nerve supply from the phrenic nerve (derived from cervical segments C 3, 4, 5 on either side) is explained by its embryological origin by caudal migration of the septum transversum.
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2000
Publisher Summary Fish live in an environment that is considerably different from that encountered by terrestrial vertebrates. Compared with air, water is 800 times more dense, 60 times more viscous, has 1/30 the capacity to hold oxygen and oxygen diffuses at 1/8000 the rate.
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Publisher Summary Fish live in an environment that is considerably different from that encountered by terrestrial vertebrates. Compared with air, water is 800 times more dense, 60 times more viscous, has 1/30 the capacity to hold oxygen and oxygen diffuses at 1/8000 the rate.
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2008
There are many striking similarities between the physiological systems of vertebrates and those of insects, but one conspicuous difference is in the way that oxygen is brought to the cells. This difference was unusual enough for Aristotle, in 350 BCE, to characterize insects as terrestrial animals that had no requirement to inhale.
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There are many striking similarities between the physiological systems of vertebrates and those of insects, but one conspicuous difference is in the way that oxygen is brought to the cells. This difference was unusual enough for Aristotle, in 350 BCE, to characterize insects as terrestrial animals that had no requirement to inhale.
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Brain and other central nervous system tumor statistics, 2021
Ca-A Cancer Journal for Clinicians, 2021Carol Kruchko +2 more
exaly