Respiratory System Flashcards
What consists of the upper respiratory tract?
Nose, pharynx and larynx
What consists of the lower respiratory tract?
trachea, bronchi, bronchioles, alveoli
Name 1 thing that the noes does?
- filters, warms and humidifies air
What is the main passage for air, food and water?
Pharynx
The opening to the pharynx from the mouth is called?
Fauces
What is the pharynx? & What does it consist of?
Fibro muscular tube located inside middle of neck. It consist of 3 things:
- nasopharynx
- oropharynx
- hypo pharynx
What is the Larynx?
(The voice box) - Hollow tube in middle of neck, just above trachea and esophagus - it lets air pass from throat to trachea on way to lungs.
Name the 3 parts of the Larynx
- Supraglottis
- Glottis (This is the only one that contains the vocal cords)
- Subglottis
What is the Epiglottis?
A flap of elastic cartilage covered with mucus membrane.
What does the epiglottis do?
Guards the entrance of the glottis, for breathing it is held anteriorly then it is pulled backward to close off the glottic opening during swallowing.
What structure prevents food and water from entering the trachea?
Epiglottis
What does cilia in upper respiratory tract do?
Move mucus and trapped particles down toward the pharynx
What is the trachea?
Made up of many C - shaped rings of cartilage which supports and allows the trachea to move and flex when we breathe
What is each lung enclosed by?
Double layered pleural membrane
Where do the base of the lungs rest on?
Diaphragm
