Recommended
More Related Content
What's hot
What's hot (20)
Similar to Lesson 1 the respiratory system
Similar to Lesson 1 the respiratory system (20)
Recently uploaded
Recently uploaded (20)
Lesson 1 the respiratory system
- 1. Lesson 1 Prepared by: Ms. Angie
- 2. Respiratory System By: Ms. Angeline Palattao
- 4. Functions of the Respiratory System Breathing process Regulates blood pH. Exchange of Oxygen and Carbon Dioxide Enable speech production
- 7. Internal Respiration All cells require oxygen for metabolism All cells require means to remove carbon dioxide Gas exchange at cellular level
- 10. External Respiration Gas Exchange in pulmonary capillaries Breathing largely involuntary activity Ventilation exchange of air between lungs and atmosphere
- 11. GSA GAS
- 15. AXRYNL LARYNX
- 16. EAACHTR TRACHEA
- 17. THMOU MOUTH
- 20. Human Respiratory System Components: Nasal cavity, throat (pharynx), larynx (voice box), trachea, bronchi, alveoli, and lungs. Pathway of Inhaled Air: ◆ Nasal cavity ◆ Pharynx (Throat) ◆ Larynx (Voice Box) ◆ Trachea (Windpipe) ◆ Bronchi ◆ Bronchioles ◆ Alveoli (Site of gas exchange)
- 21. Nasal cavity: Air enters nostrils, is filtered by hairs, warmed, humidified, and sampled for odors as it flows through a maze of spaces.
- 22. Pharynx (Throat): Intersection where pathway for air and food cross. Most of the time, the pathway for air is open, except when we swallow.
- 23. What is the other term for pharynx? THROAT
- 24. Larynx (Voice Box): Reinforced with cartilage. Contains vocal cords, which allow us to make sounds by voluntarily tensing muscles.
- 25. High pitched sounds: Vocal cords are tense, vibrate fast. Low pitched sounds: Vocal cords are relaxed, vibrate slowly. More prominent in males (Adam’s apple).
- 26. What is the other term for larynx? VOICE BOX
- 27. Normally, who has low pitched voice? Male
- 29. Trachea (Windpipe): Rings of cartilage maintain shape of trachea, to prevent it from closing. Forks into two bronchi.
- 30. Trachea • Windpipe or airway • mucous membrane lining with cilia • smooth muscle with c-shaped cartilage rings • divides into two branches: bronchi • no gaseous exchange
- 31. What is the other term for trachea? WINDPIPE
- 32. What are the two kinds of respiration? Internal and external respiration
- 33. What is the difference between external and internal respiration?
- 34. What are the two kinds of tracts? Upper and lower respiratory tracts
- 35. Where is the first passage way of air that enters into our body ? Nose or mouth
- 36. What passage way of air is also called the voice box? LARYNX
- 37. What passage way of air is also called the throat? PHARYNX
- 38. Normally, what kind of voice do males have in common? Low pitched voice
- 39. What passage way of air is also called the wind pipe? TRACHEA
- 40. Bronchi (Sing. Bronchus): Each bronchus leads into a lung and branches into smaller and smaller bronchioles, resembling an inverted tree.
- 41. What is singular form of bronchi ? BRONCHUS
- 42. Bronchi • Bronchus, singular • c-shaped cartilage rings with smooth muscle • each bronchi divides into bronchioles • terminate in air sacs called alveoli
- 43. Bronchioles: Fine tubes that allow passage of air. Muscle layer constricts bronchioles. Epithelium of bronchioles is covered with cilia and mucus. Mucus traps dust and other particles.
- 44. Alveoli • air sacs • gaseous exchange takes place here
- 46. Where does gas exchange take place? alveoli
- 47. Right-3 lobes Left-2 lobes Lungs trachea
- 49. Spell ? LUNGS
- 50. Breathing Ventilates the Lungs Breathing: Alternation of inhalation and exhalation.
- 51. Breathing Ventilates the Lungs ◆ Inhalation: taking in of oxygen and other traces of gases
- 52. Breathing Ventilates the Lungs . ◆ Exhalation: giving-out carbon dioxide and other traces of gases
- 53. DIAPHRAGM
- 54. Respiration • external respiration - exchange of gases in lungs • internal respiration - exchange of gases within cells of the body organs and tissues • ventilation - movement of air
- 56. During inhalation (breathe-in) diaphragm contracts the rib cage rises up Atmospheric pressure fills the lungs chest cavity expands
- 57. During exhalation (breathe-out) passive event diaphragm relaxes pressure in the chest cavity is greater than atmospheric pressure rib cage lowers
- 58. • What Is Respiration? • Breathing is the actual mechanical intake of air
- 61. Gas Exchange • RESPIRATION • Gas exchange takes place in the alveoli. • Oxygen diffuses into the blood. • Carbon dioxide in the blood diffuses into the alveolus. Capillary O2 CO2
- 62. Malfunctions & Diseases of the Respiratory System asthma severe allergic reaction characterized by the constriction of bronchioles bronchitis inflammation of the lining of the bronchioles emphysema condition in which the alveoli deteriorate, causing the lungs to lose their elasticity pneumonia condition in which the alveoli become filled with fluid, preventing the exchange of gases lung cancer irregular & uncontrolled growth of tumors in the lung tissue