Respiratory System
Overview
The respiratory system is responsible for the exchange of gases in the body, specifically oxygen and carbon dioxide. It includes the nose, pharynx, larynx, trachea, bronchi, and lungs.
Key Components
- Nose: The nasal passages filter, warm, and moisten incoming air.
- Pharynx: Commonly known as the throat, it serves as a passageway for air and food.
- Larynx: Also called the voice box, it contains the vocal cords and helps with breathing and sound production.
- Trachea: The windpipe that connects the larynx to the bronchi and allows air to pass through.
- Bronchi: The airways that branch off from the trachea and lead to the lungs.
- Lungs: The primary organs of respiration where gas exchange occurs.
Gas Exchange
Within the lungs, oxygen from inhaled air is transferred to the bloodstream, while carbon dioxide is removed from the blood and exhaled out of the body. This process occurs in tiny air sacs called alveoli.
Respiratory Disorders
Common respiratory conditions include asthma, chronic obstructive pulmonary disease (COPD), pneumonia, and bronchitis. Smoking, air pollution, and infections can contribute to these disorders.
Study Tips
.◂Chemistry Worksheets and Study Guides High School. Gases
The resources above cover the following skills:
Physical Science
Energy - A. Energy is involved in all physical and chemical processes. It is conserved, and can be transformed from one form to another and into work. At the atomic and nuclear levels energy is not continuous but exists in discrete amounts. Energy and mass are related through Einstein's equation E=mc 2 . B. The properties of atomic nuclei are responsible for energy-related phenomena such as radioactivity, fission and fusion. C. Changes in entropy and energy that accompany chemical reactions influence reaction paths. Chemical reactions result in the release or absorption of energy. D. The theory of electromagnetism explains that electricity and magnetism are closely related. Electric charges are the source of electric fields. Moving charges generate magnetic fields. E. Waves are the propagation of a disturbance. They transport energy and momentum but do not transport matter.
Relate temperature to the average molecular kinetic energy.