HOSA respiratory Flashcards
functions of respiratory system
- delivers air to the lungs
- transports oxygen from inhaled air to the blood for delivery to the blood cells.
- expel waste products
- produce airflow through larynx that makes speech possible
- respiration (breathing)
nose
air enters body
mouth
oral cavity, allows food and air to enter body
pharynx
- known as throat, made up of three divisions
- receives the air after it passes through nose or mouth
epiglottis
- lid-like structure located at the base of the tongue
- closes laryngopharynx so food does not enter trachea
larynx
- voicebox
- triangular chamber located between the pharynx and trachea
trachea
- transports air to the lungs
- located in front of the esophagus
nasal septum
- a wall of cartilage that divides the nose into two equal sections
nostrils
- external opening of the nose
cilia
tiny hairs inside nostrils that filter the incoming air to remove debris
mucous membrane
specialized tissue that lines the nose, other parts of the respiratory system, and also lines other organ systems
mucus
-slippery secretion produced by mucous membrane that protects and lubricated these tissues.
olfactory receptors
- nerve ending that act as the receptors for the sense of smell and taste
tonsils and adenoids
- part of the lymphatic system
- helps protect body from infection coming through the nose and mouth.
palatine tonsils
located as the back of the mouth
nasopharyngeal tonsils
higher up than the palatine tonsils, behind the nose and tbe roof of the mouth
Paranasal Sinuses
- located in the bones of the skull that help to make the bones of the skull lighter.
- air-filled cavities lined with mucous membrane
- help produce mucus to provide lubrication for the tissues of the naval cavity
- three types
Frontal SInuses
located in the frontal bone just above the eyebrows
Sphenoid Sinuses
located in the sphenoid bone behind the eye.
Maximallary Sinus
largest of the paranasal sinuses, located in the maximallary bones under the eye.
Nasopharynx
transports air and opens into the oropharynx
Oropharnynx
transports air, food, and fluids downwards to the laryngopharynx
laryngopharynx
air, food, and fluids continue downwards to the openings of the esophagus and trachea where air enters the trachea and foods and fluids flow into esophagus
