The Respiratory System Flashcards
nose; exchanges air during inhaling and exhaling; warms, moisturizes, and filters inhaled air
nas/o
sinuses; produces mucus for the nasal cavities, make bones of the skull lighter, and aid in sound production
sinus/o
pharynx; transports air back and forth between the nose and the trachea
pharyng/o
larynx; makes speech possible
laryng/o
epiglottis; closes off the trachea during swallowing
epiglott/o
trachea; transports air back and forth between the pharynx and the bronchi
trache/o
transports air from the trachea to the lungs
bronch/o, bronchi/o
alveoli; air sacs that exchange gases with the pulmonary capillary blood
alveol/o
bring oxygen into the body, and remove carbon dioxide and some water waste from the body
pneum/o, pneomon/o, pulmon/o
supplies the blood with oxygen for transportation to the cells in all parts of the body
respiratory system
nose (nostrils), mouth, pharynx, epiglottis, larynx, and trachea
upper respiratory tract
bronchial tree and lungs; located within and protected by the thoracic cavity or thorax (rib cage)
lower respiratory tract
a wall of cartilage that divides the nose into two equal sections
nasal septum
the thin hairs located just inside the nostrils, filter incoming air to remove debris
cilia
line the nose
mucous membranes
a slippery secretion produced by the mucous membranes that protects and lubricates these tissues
mucus
nerve endings that act as the receptors for the sense of smell
olfactory receptors
located at the back of the mouth
palatine tonsils
(nasopharyngeal tonsils) higher up than the palatine tonsils, behind the nose and the roof of the mouth
adenoids
air-filled cavities lined with mucous membrane, located in the bones of the skull
paranasal sinuses
a sac or cavity in any organ or tissue
sinus
located in the frontal bone just above the eyebrow; infection can cause severe pain in area
frontal sinuses
located in the sphenoid bone behind the eye and under the pituitary gland; close to the optic nerves infection can cause vision damage
sphenoid sinuses
largest of the paranasal sinuses, located in the maxillary bones under the eyes; infection can cause pain in the posterior maxillary teeth
maxillary sinuses
located in the ethmoid bones between the nose and the eyes, are irregularly shaped air cells that are separated from the eye cavity by only a thin layer of bone
ethmoid sinuses
(throat) receives the air after it passes through the nose or mouth, as well as food
pharynx
first division, posterior to the nasal cavity and continues downward to behind the mouth; only used by the respiratory system
nasopharynx
second division, is the portion that is visible when looking into the mouth; shared by the respiratory system and digestive system and transports air, food, and fluids downward to the laryngopharynx
oropharynx
third division, also shared by the respiratory and digestive systems
laryngopharynx
(voice box) a triangular chamber located between the pharynx and the trachea; contains the vocal cords
larynx
largest cartilage that protects the larynx; when enlarged, it is known as an Adam’s Apple
thyroid cartilage
lid-like structure located at the base of the tongue, swings downward and closes off the laryngopharynx so that food does not enter the trachea and the lungs
epiglottis
(windpipe) transports air to and from the lungs; located directly in front of the esophagus
trachea
two large tubes, also known as primary bronchi, which branch out from the trachea and convey air onto the lungs
bronchi
(air sacs) very small, grapelike clusters found at the end of each bronchiole; where the exchange of oxygen and carbon dioxide takes place
alveoli
relating to the lungs
pulmonary
detergent-like substance produced by the alveoli; reduces the surface tension of the fluid in the lungs
surfactant
the essential organs of respiration, are divided into lubes
lungs
a subdivision or part of an organ
lobes
larger and has three lobes: the upper, middle, and lower
right lung
only has two lobes, the upper and lower, due to space restrictions because the heart is located on that side of the body
left lung
the middle section of the chest cavity and is located between the lungs; contains connective tissue and organs, including the hears and its veins and arteries, the esophagus, traches, bronchi, the thymus gland, and lymph nodes
mediastinum
thin, moist, and slippery membrane that covers the outer surface of the lungs and lines the inner surface of the thoracic cavity
pleura
the outer layer of the pleura; lines the walls of the thoracic cavity, covers the diaphragm, and forms the sac containing each lung; attached to the chest wall
parietal pleura
the inner later of the pleura that covers each lung, is attached directly to the lungs
visceral pleura
(pleural space) thin, fluid-filled space between the parietal and visceral pleural membranes; the fluid acts as a lubricant, allowing the membranes to slide easily over each other during respiration
pleural cavity
relating to the walls of a cavity
parietal
relating to the internal organs
visceral
(thoracic diaphragm) a dome-shaped sheet of muscle that separates the thoracic cavity from the abdomen; it is the contraction and relaxation of this muscle that makes breathing possible
diaphragm
stimulate the diaphragm and causes it to contract
phrenic nerves
(ventilation, breathing) the exchange of oxygen for carbon dioxide that is essential to life
respiration
the act of taking in air as the diaphragm contracts and pulls downward
inhalation
the act of breathing out as the diaphragm relaxes
exhalation
the act of bringing air in and out of the lungs from the outside environment and, in the process, exchanging oxygen for carbon dioxide
external respiration
(cellular respiration) the exchange of gases within the cells of the blood and tissues
internal respiration
(ENT) a physician with specialized training in the diagnosis and treatment of diseases and disorders of the head and neck
otolaryngologist
a physician who specializes in the diagnosing and treating of diseases and disorders of the respiratory system
pulmonologist
performs operations on the organs inside of the thorax, or chest, including the heart, lungs, and esophagus
thoracic surgeon
(COPD) a group of lung diseases in which the bronchial airflow is obstructed, making is difficult to breathe; most often caused by long-term smoking, generally permanent and progressive
chronic obstructive pulmonary disease
a disease in which airways have become inflamed due to recurrent exposure to an inhaled irritant, usually cigarette smoke
chronic bronchitis
the progressive long-term loss of lung function, usually due to smoking; characterized by a decrease in the total number of alveoli, enlargement of the remaining alveoli, and the progressive destruction of the walls of these remaining alveoli; results in barrel chest
emphysema
a chronic inflammatory disease of the bronchial tubes, often triggered by an allergic reaction
asthma
characterized by episodes of severe breathing difficulty, coughing, and wheezing
asthma attack
a breathing sound caused by a partially obstructed airway
wheezing
the swelling and clogging of bronchial tubes with mucus
airway inflammation
a contraction of the smooth muscle in the walls of the bronchi and bronchioles, tightening and squeezing the airway shut
bronchospasm
the narrowing of the airways that develops after 5 to 15 minutes of physical exertion
exercise-induced asthma
URI, acute nasopharyngitis (common cold); caused by human rhinovirus
upper respiratory infections
(allergy) an allergic reaction to airborne allergens that causes an increased flow of mucus
allergic rhinitis
an inflammation of the lining of the nose caused by something other than an allergen, such as cold air, spicy food, or medication
nonallergic rhinitis
an acute respiratory infection in children and infants characterized by obstruction of the larynx, hoarseness, and swelling around the vocal cords resulting in a barking cough or stridor
croup
a harsh, high-pitched sound caused by a blockage present when breathing in
stridor
an acute bacterial infection of the throat and upper respiratory tract
diphtheria
(nosebleed) bleeding from the nose that may be caused by dry air, injury, medication to prevent blood clotting, or high blood pressure
epistaxis
(flu) an acute, highly contagious viral infection characterized by respiratory inflammation, fever, chills, and muscle pain
influenza
(whooping cough) a contagious bacterial infection of the upper respiratory tract that is characterized by recurrent bouts of a paroxysmal cough, followed by breathlessness and a noisy inspiration
pertussis
sudden or spasmlike
paroxysmal
(runny nose) the watery flow of mucus from the nose
rhinorrhea
an inflammation of the sinuses
sinusitis
(sore throat) inflammation of the pharynx; often a symptom of a cold, flu, or sinus infection
pharyngitis
the sudden spasmodic closure of the larynx
laryngospasm
the loss of the ability to produce normal speech sounds
aphonia