Systems: Respiratory (2) Flashcards
What parts of the body does the upper respiratory tract consist of?
Nose, nasal passage, pharynx, glottis, epiglottis, larynx
Where does air first enter the respiratory system?
Mouth or nose (nasal or oral cavity)
What is the function of the nose?
Contains mucus with special enzymes to protect against infection. Hairs also help to filter out unwanted materials in air
What is an open area beyond the nose that serves to warm and moisten air?
Nasal cavity
Describe the order of passage of air in the upper respiratory tract
Mouth/nose, pharynx, glottis, larynx, lower respiratory tract
What organ is made of cartilage and used to produce sound?
Larynx
What part of the body has 2 thin sheets of elastic ligaments, which vibrate when air passes through them to make sound?
Vocal cords
Do men or women generally have longer vocal cords? Explain why
Men because longer cords produce deeper sounds and men generally have deeper voices
What is the thick band of cartilage that protects the vocal cords?
Adam’s apple
What organ attaches the upper and lower respiratory tracts?
Trachea
Describe the trachea
10-12cm flexible tube made of cartilaginous rings. It contains mucus for protection and microscopic hairs to sweep unwanted particles up and out of the tract
What are the microscopic hairs that sweep unwanted particles up and out of the trachea called?
Cilia
The trachea branches into 2 tubes called what?
Bronchi
Which two organs do the bronchi connect?
Trachea and lungs
What is the name of the flexible sac which surrounds the lungs, containing a fluid that allows the lungs to move around, and is also attached to the chest?
Pleural membrane
