RESPIRATORY SYSTEM

 N___  P_____  L_____  T______  B_____  B__________  L____ MAJOR ORGANS

 _____ Respiratory Tract  Nose  Mouth  Nasal cavity  Pharynx  Larynx  _____ Respiratory Tract  Trachea  Bronchi  Bronchioles  Lungs TRACTS

 _________ Zone  Everything except the exchange  N___  M____  N____ ______  P______  L_____  T______  B______  B__________  ___________ Zone  Where the respiration actually takes place  Lungs  Alveoli ZONES

 Filter and remove foreign particles  Humidify and control temperature of inspired air  Produce sound (voice)  Sense of _____ (olfactory sense)  Aid in immunity  Conduct air to lowest respiratory tract UPPER RESPIRATORY TRACT

 _____  Only part of respiratory system that is external to the body  Openings are called nostrils or nares UPPER RESPIRATORY TRACT  _____ Cavity  ______ the nose  Split into ____ and _____ by the nasal septum  Mucus membrane lined to filter air  Front of nasal cavity, inside each nostril, is the _________ region  Contains oily cilia: trap particles  __________ receptors  Along roof of nasal cavity

 Nasal cavity (contd)  Rest of nasal cavity is called the __________ cavity  This region warms the air, but is lined with thinly lined veins  These are the causes of ___________  __________  3 uneven bones that extend through the nasal cavity  Increase _________ area to filter air UPPER RESPIRATORY TRACT

1.What structures make up the respiratory system? 2.What are the functions of the upper respiratory tract? 3.What structures make up the lower respiratory tract? 4.What is the only external part of the respiratory system? CHECK YOUR UNDERSTANDING

 _______  Commonly referred to as the roof of the mouth  Separates the nasal cavity from the _____ cavity  Anterior part is supported by bone  Called the “____ palate”  Posterior plate is composed of soft muscle and tissue  Called the “____ palate” UPPER RESPIRATORY TRACT

 Palate (contd)  ____  Hangs from the end of the soft palate  Prevents food from entering _____ cavity  Small role in speech  Small conical mass of connective tissue and ______ fibers UPPER RESPIRATORY TRACT

 Palate (contd)  When parts of the palate do not completely fuse together during fetal development, a _____ palate is the result  A cleft palate leaves an opening in the roof of the mouth, or a gap between the lip and the nose  Occurs in 1 out of every ___ babies UPPER RESPIRATORY TRACT

CLEFT PALATE

 Sinuses  ___ filled cavities that surround the nose  Lined with mucous membranes  Connect to nasal cavities by ducts that drain into the nose  __ sinuses  Frontal sinus  Ethmoidal sinus  Sphenoidal sinus  Maxillary sinus UPPER RESPIRATORY TRACT

 Sinuses  _____ the weight of the head  Warm and moisten air  Amplify the tone of voice  “nasaly” sound during a sinus infection (stuffed up) UPPER RESPIRATORY TRACT

 How many types of sinuses do you have and what are they?  Where are they located?  What is another name for your palate?  What is the function of the cilia in your nose?  Imagine you are a doctor and one of your patients recently gave birth to a baby with a cleft palate. How would CHECK YOUR UNDERSTANDING