Domanda del libro di testo
On a climb up Mount Whitney, the atmospheric pressure drops to 467 mmHg. What is the pressure in terms of the following units?
d. Pa
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Ch.8 Gases
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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TOC.tableOfContents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Non è quello che usi tu?Cambia libro di testo
Capitolo 8, Problema 23a
Use the words inspiration and expiration to describe the part of the breathing cycle that occurs as a result of each of the following:
a. The diaphragm contracts.
Guida verificata passo dopo passo1
Step 1: Understand the terms 'inspiration' and 'expiration'. Inspiration refers to the process of inhaling air into the lungs, while expiration refers to the process of exhaling air out of the lungs.
Step 2: Recall the role of the diaphragm in breathing. The diaphragm is a dome-shaped muscle located below the lungs that plays a key role in the breathing process.
Step 3: Analyze what happens when the diaphragm contracts. When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity (the space where the lungs are located).
Step 4: Relate the increase in thoracic cavity volume to air movement. As the thoracic cavity volume increases, the pressure inside the lungs decreases (based on Boyle's Law: pressure and volume are inversely related). This pressure drop causes air to flow into the lungs.
Step 5: Conclude that the contraction of the diaphragm is associated with inspiration, as it facilitates the intake of air into the lungs.
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Diaphragm Function
The diaphragm is a dome-shaped muscle located at the base of the thoracic cavity. When it contracts, it flattens and moves downward, increasing the volume of the thoracic cavity. This action creates a negative pressure that draws air into the lungs, facilitating the process of inspiration.
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02:16
Logarithmic Functions
Inspiration
Inspiration is the phase of the breathing cycle where air is drawn into the lungs. It occurs when the diaphragm contracts and the intercostal muscles expand the rib cage, leading to a decrease in internal pressure compared to the external atmosphere. This pressure difference allows air to flow into the lungs, supplying oxygen to the body.
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Expiration
Expiration is the phase of the breathing cycle where air is expelled from the lungs. It typically occurs when the diaphragm relaxes and returns to its dome shape, decreasing the thoracic cavity's volume. This increase in internal pressure forces air out of the lungs, removing carbon dioxide and other gases from the body.
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Use the words inspiration and expiration to describe the part of the breathing cycle that occurs as a result of each of the following:
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