Chapter 7 The Respiratory System A&P Flashcards
supplies the blood with oxygen for transportation to the cells in all parts of the body
respiratory system
consists of the nose, mouth, pharynx, epiglottis, larynx, and trachea
upper respiratory tract
consists of the bronchial tree and lungs
lower respiratory tract
interior portion of the nose
nasal cavity
are the external openings of the nose
nostrils
is a wall of cartilage that divides the nose into two equal sections
nasal septum
is a wall that separates two chambers
septum
the thin hairs located just inside the nostrils, filter incoming air to remove debris
cilia
line the nose. specialized tissue also line the digestive, reproductive, and urinary systems as well as other parts of the respiratory system
mucous membranes
is a slippery secretion produced by the mucous membrane that protects and lubricates these tissues
mucus
are nerve endings that act as the receptors for the sense of smell
olfactory receptors
are part of the lymphatic system. protect the body from infection coming through the nose or the mouth
tonsils and adenoids
which are air-filled cavities lined with mucous membrane, are located in the bone of the skull
paranasal sinus
can be a sac or cavity in any organ or tissue
sinus
are located in the frontal bone just above the eyebrows
frontal sinuses
are located in the sphenoid bone behind the eye under the pituitary gland, are close to the optic nerves, and an infection here can damage vision
sphenoid sinuses
which are the largest of the paranasal sinuses, are located in the maxillary bones under the eyes
maxillary sinuses
are located in the ethmoid bones between the nose and the eyes, are irregularly shaped air cells that are separated from the orbital cavity by only a thin layer of bone
ethmoid sinuses
is commonly known as the throat, receives the air after it passes through the nose or mouth as well as food
pharynx
is the first division of the pharynx, is posterior to the nasal cavity and continues downward to behind the mouth. only used by the respiratory system
nasopharynx
is the second division of the pharynx, is the portion that is visible when looking into the mouth. shared by the respiratory and digestive systems
oropharynx
is the third division of the pharynx, is also shared by both respiratory and digestive systems (primarily digestive system function)
laryngopharynx
also known as the voice box, is a triangular chamber located between the pharynx and the trachea
larynx
is the largest, and when enlarged it projects from the front of the throat and is commonly known as the Adam’s apple
thyroid cartilage
is a 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
is to transport air to and from the lungs. this tube, which is commonly known as the windpipe, is located directly in front of the esophagus
trachea
are two large tubes, also known as primary bronchi, which branch out from the trachea and convey air into the two lungs
bronchi
each primary bronchus divides and subdivides into increasingly smaller structures, which are the smallest branches of the bronchi
bronchioles
also known as air sacs, are the very small grape-like clusters found at the end of each bronchiole. where the exchange of oxygen and carbon dioxide takes place
alveoli
means relating to or affecting the lungs
pulmonary
detergent-like substance, which reduces the surface tension of the fluid in the lungs
surfactant
are the essential organs of respiration, are divided into lobes
lungs
is a subdivision or part of an organ
lobe
is the larger and has three lobes: the upper, middle, and lower (or superior, middle, and inferior)
right lung
has only two lobes, the upper and lower, due to space restrictions because the heart is located on that side of the body
left lung
is the middle section of the chest cavity and is located between the lungs
mediastinum
is a thin, moist, and slippery membrane that covers the outer surface of the lungs and lines the inner surface of the thoracic cavity
pleura
is the outer layer of pleura. lines the walls of the thoracic cavity
parietal pleura
is the inner layer of pleura that covers each lung, is attached directly to the lungs
visceral pleura
is the thin fluid-filled space between the parietal and visceral pleural membranes
pleural cavity
is a dome-shaped sheet of muscle that separates the thoracic cavity from the abdomen
diaphragm
stimulates the diaphragm and causes it to contract
phrenic nerves
or breathing, is the exchange of oxygen for carbon dioxide that is essential to life
respiration
is the act of taking in air as the diaphragm contracts and pulls downward
inhalation
is the act of breathing out. diaphragm relaxes, it moves upward
exhalation
is 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
is the exchange of gases within the cells of the blood and tissues
internal respiration (cellular respiration)
known as an ENT (ear, nose, throat), is a physician with specialized training in the diagnosis and treatment of diseases and disorders of the head and neck
otolaryngologist
is a physician who specializes in diagnosing and treating diseases and disorders of the respiratory system
pulmonologist
performs operations on the organs inside the thorax, or chest, including the heart, lungs, and esophagus
thoracic surgeon
is the narrowing of the airway that develops after 5 to 15 minutes of physical exertion
exercise-induced asthma
is a therapeutic technique to remove excess mucus from the lungs
chest percussion
is a condition that can be brought on by the decreased oxygen in the air at higher altitudes, usually above 8,000 feet
altitude hypoxia (altitude sickness)
is a state of asphyxia or suffocation. oxygen levels in the blood drop quickly, carbon dioxide levels rise, and unless the patient’s breathing is restored within a few minutes, death or serious brain damage follows
asphyxiation
is an important vital sign. count of the number of breaths
respiratory rate
such as rale, rhonchi, and stridor provide information about the condition of the lungs
respiratory sounds
is a flexible, fiber-optic device that is passed through the nose or mouth and down the airways
bronchoscope
is a small tube that divides into two nasal prongs
nasal cannula
allows the exhaled breath to be partially reused, delivering up to 60% oxygen
rebreather mask
allows higher levels of oxygen to be added to the air taken in by the patient
non-rebreather mask
or bag valve mask, is an emergency resuscitator used to assist ventilation
ambu bag (bag valve mask)
is the escape of fluid from blood or lymphatic vessels into the tissues or into a body cavity
effusion
is a dangerous form of tuberculosis because the germs have become resistant to the effect of the primary TB drugs
multidrug-resistant tuberculosis
is lobar pneumonia involving both lungs and is usually a form of bacterial pneumonia
double pneumonia
is the only form of pneumonia that can be prevented through vaccination
pneumococcal pneumonia*
describes abnormal changes in the rate or depth of breathing
breathing disorders
is a simpler version of this test in which the larynx is viewed by shining a light on an angled mirror held at the back of the soft palate
indirect laryngoscopy
is a procedure in which a sample of mucus is coughed up from the lungs and then examined under a microscope to detect cancer cells
sputum cytology
is performed using an instrument with several small prongs called tines
tuberculin tine test
such as inhaled corticosteroids, are long-acting medications taken daily to prevent attacks
controller medicines
are taken at the first sign of an attack to dilate the airways and make breathing easier
quick-relief or rescue medicines
is the insertion of a tube, usually for the passage of air or fluids
intubation
means a surgically created opening on a body surface
stoma
is a harsh, high-pitched sound caused by a blockage present when breathing in
stridor
means sudden or spasm-like
paroxysmal
is a systemic bacterial infection in the bloodstream
sepsis