Respiratory System Flashcards
Entrance of air into the respiratory system; contains cilia
Nose
- Contains special cells involved in sense of smell
- nasal passages moisten air before going to the lungs
Nasal Cavity
Two flaps that increase SA, moistening area
Concha/Conchae
3 divisions of the pharynx
Nasopharynx (air)
Oropharynx (food, water, saliva, air)
Hypopharynx
phonation of speech
Larynx (voicebox)
Carries air in and out of lungs
Trachea (windpipe)
prevents food from entering windpipe; small moveable lid
Epiglottis
Adam’s apple
Laryngeal prominence
produce sound
vocal folds
passageway of air
Bronchi
Smallest branches of the bronchial tubes
bronchioles
About 300M are present in our lungs; very small air sacs where gas exchange takes place
Alveoli
Gas exchange process
https://cdn1.byjus.com/wp-content/uploads/2018/11/exchange-regulation-of-gases.png
series of chemical reactions that break down glucose to produce ATP
Cellular Respiration
Number of lobes in the left lung
2; inferior and superior
Number of lobes in right lung
3; superior, middle, and inferior
- Lubricant in the lung that allows for optimal expansion and contraction
- slippery membrane that covers the lungs as well as the inside of the chest wall
Pleura
2 stages of breathing
Inhalation and Exhalation
What happens in inhalation?
Chest expands, diaphragm contracts
What happens in exhalation?
Diaphragm relaxes, chest contracts
What are the 2 respiratory muscles?
Diaphragm and intercostal muscles
Located between the thorax and abdomen; assists in breathing
Diaphragm
Moves the chest wall
Intercostal Muscles
