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RESPITORY SYSTEM

By: Chastday Garza. RESPITORY SYSTEM. What the Respiratory system does. It's purpose is to bring oxygen into your body It helps your body get rid of that carbon dioxide. The passageways purify, humidify, and warm incoming air. What it consist of.

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RESPITORY SYSTEM

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  1. By: Chastday Garza RESPITORY SYSTEM

  2. What the Respiratory system does • It's purpose is to bring oxygen into your body • It helps your body get rid of that carbon dioxide. • The passageways purify, humidify, and warm incoming air

  3. What it consist of • Ventilation - the exchange of respiratory gases (O2 and CO2) between the atmosphere and the lungs • External respiration - the exchange of gases between the lungs and the blood • Internal respiration - the exchange of gases between the blood and the systemic tissues • Cellular respiration - the includes the metabolic pathways

  4. What are the main parts? • The respiratory system includes the nose, pharynx, trachea , bronchi and there smaller branches in the lungs • The lungs contain the aveoli,or terminal air sacs

  5. The Nose • Nose- Only externallyvisible part of the respiratory system • Sticky mucus produced by the mucosa’s gland traps incoming bacteria and other foreign debris • Surrounded by a ring of paranasal sinuses located in the frontal, sphenoid, ethoid and maxillary bones

  6. The Pharynx (throat) • Pharynx- a muscular passageway about 13 cm (5 in) long that vaguely resembles a short length of red garden hose • Connected to the nose

  7. (continuation) • Air enters the nasopharnx, form the nasal captivity and descends through the oropharynx and laryngophary to enter the larynx below • Includes tonsils and adenoid

  8. The Larynx • Larynx- voice box, routes air and food into proper channels and plays a role in speech • Has a spoon-shaped flap of elastic cartilage, the epiglottis • Also has a shield-shaped Thyroid cartage which produces interiorly and is commonly called “Adams apple”

  9. (continuation) • When swallow larynx is pulled upward and the epiglottis tips, forming a lid over the opening

  10. The Trachea • Windpipe from the larynx travels down the length to the level of the fifth thoracic vertebra, in the mid chest • Cilia continuously and in the direction opposite to the incoming air • It is rigid because its walls are reinforced with c-shaped rings of hyaline cartilage

  11. (Continuation) • The rings purpose are to open parts of the rings about the esophagus and allow it to expand when we swallow large pieces or foods

  12. The Primary Bronchi • Primary Bronchi- formed by the division of the trachea • The right primary bronchus is wider, shorter, and straighter than the left • By the time air is reached it is was cleaned , and well humidified • The smaller one is direct routes to the air sacs

  13. The Lungs • Lungs- large organs • Mediastium which houses the heart, the great blood vessles, bronchi, esophagus, and other organs • Left lung has two lobes and the right has three • Walls of the alveoli are composed largely of single , thin layer of squamous epithelial cells

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