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Respiratory System Objectives
Respiratory System Objectives
Presented by Alexa Blackman
Respiratory System
Respiratory System
- Biological system consisting of specific organs and structures used for gas exchange in animals and plants
Respiratory System
Functions of Respiratory System
Organs
1. Lungs - main organs that breathe in oxygen and releases carbon dioxide
2. Trachea - windpipe, long, straight tube in the chest, branches into two smaller tubes
3. Pharynx - passageway for air and food
4. Larynx - voice box found in the neck
5. Alveoli - tiny air sacs of lung tissue, end of the bronchioles
6. Bronchioles - bronchi branch made into smaller tubes, little branches, inside the lungs
7. Diaphram - a muscle
8. Bronchi - branches of the lungs
Function of Ribs and Diaphram
in Breathing Process
Functions
- When someone inhales, their diaphram contracts and moves downwards --> increases in chest cavity, as well as the intercoastal muscles between your ribs --> then, lungs expand --> contract to pull rib cage upward and outward when you inhale
- control is automatic, involuntarily, and continous
- respiratory center knows how to control the breathing rate by amount of carbon dioxide, oxygen, and acidisis in arterial blood
What Happens Between the Alveoli and Capillaries
- capillaries sit around alveoli and take in oxygen and get rid of carbon dioxide
- capillaries carry waste nutrients and gases, such as oxygen and carbon dioxide
- alveoli causes gas exchange
Gas Exchange
Effects on Smoking on Respiration
- Irritation of the trachea
- Larynx reduced lung function and breathlessness due to swelling
and narrowing of the lung airways and excess mucus in the lung
passages