Chapter 5 - Respiratory System Flashcards
Respiratory system does 4 important things:
-Brings oxygen into the body
-helps get rid of carbon dioxide
-filers, warms, and humidifies the air we breathe and provides protection from microorganisms;
-organs of the respiratory system play a role in the sense of smell and the creation of sound
Nas/o
Nose
Function: exchanges air during inhaling and exhaling; warms, moisturizes, and filters inhaled air
Sinus/o
Sinuses
functions: Produce mucus for the nasal cavities, make bones of the skull lighter, aid in sound production
Pharyng/o
Pharynx
functions: transports air back and forth between the nose and the trachea
laryng/o
Larnyx
functions: makes speech possible
Epiglott/o
Epiglottis
functions: Closes off the trachea during swallowing
trache/o
trachea
functions: transports air back and forth between the pharynx and the brochi
bronch/o
bronchi/o
Bronchi
functions: transports air from the trachea into the lungs
alveli
alveol/o
Functions: Air sacs that exchange gases with the pulmonary capillary blood
Pneum/o
pneumon/o
pulmon/o
Lungs
Functions: Bring oxygen into the body, and remove carbon dioxide and some water waste from the body
bronch/o, bronci/o
bronchial tube, bronchus
phon/o
sound, voice
pleur/o
pleura, side of the body
-pnea
breathing
somn/o
sleep
spir/o
to breathe
thorac/o, -thorax
chest, pleural cavity
trache/o, trachea
windpipe, trachea
alveoli
small grapelike clusters found at the end of each bronchiole
anoxia
the absence of oxygen from the body’s tissues and organs even though there is an adequate flow of blood
antitussive
medication administered to prevent or relieve coughing
aphonia
loss of the ability of the larynx to produce normal speech sounds
asbestosis
the form oh pneumoconiosis caused by asbestos particles in the lungs
asphyxia
the loss of consciousness that occurs when the body cannot get the oxygen it needs to function
asthma
a chronic, inflammatory disease of the bronchial tubes, often triggered by an allergic reaction and characterized by episodes of severe breathing difficulty, coughing, and wheezing
atelectasis
the incomplete expansion of part or all of a lung due to a blockage of the air passages or pneumothorax
bradypnea
an abnormally slow rate of respiration, usually of less than 10 breaths per minutes
bronchodilator
a medication that relaxes and expands the bronchial passages into the lungs
bronchorrhea
an excessive discharge of mucus from the bronchi
bronchoscopy
the visual examination of the bronchi through using a bronchoscope
bronchospasm
a contraction of the smooth muscle in the walls of the bronchi and bronchioles that tighten and squeeze the airway shut
Cheyne-Stokes respiration
an irregular pattern of breathing characterized by alternating rapid or shallow respiration followed by slower respiration or apnea
croup
an acute respiratory syndrome in children and infants characterized by obstruction of the larynx, hoarseness, and swelling around the vocal cords, resulting in a barking cough and stridor
cyanosis
a blush discoloration of the skin and mucous membranes caused by a lack of adequate oxygen in the blood
cystic fibrosis
a life-threatening genetic disorder in which the lungs and pancreas are clogged with large quantities of abnormally thick mucus
diphtheria
an acute bacterial infection of the throat and upper respiratory tract
dysphonia
difficulty in speaking, which may include any impairment in vocal quality, including hoarseness, weakness, or the cracking of a boy’s voice during puberty
dyspnea
difficult or labored breathing; also known as shortness of breath
emphysema
the progressive, long-term loss of lung function, usually due to smoking
empyema
an accumulation of pus in a body cavity
endotracheal intubation
the passage of a tube through the mouth into the trachea to establish or maintain an open airway
epistaxis
bleeding from the nose that may be caused by dry air, an injury, medication to prevent blood clotting, or high blood pressure; also known as a nnosebleed
hemoptysis
the expectoration of blood or bloodstained sputum derived from the lungs or bronchial tubes as the result of pulmonary or bronchial hemorrhage
hemothrox
a collection of blood in the pleural cavity
hypercapnia
the abnormal buildup of carbon dioxide in the blood
hyperpnea
an increase in the depth and rate of the respiratory movements
hypopnea
shallow or slow respirations
hypoxemia
the condition of having low oxygen levels in the blood
hypoxia
the condition of having deficient oxygen levels in the body’s tissues and organs; less severe than anoxia
laryngectomy
the surgical removal of the larynx
laryngitis
inflammation of the larynx; also commonly used to describe voice loss that is caused by this inflammation
laryngoscopy
the visual examination of the larynx using a laryngoscope
laryngospasm
the sudden spasmodic closure of the larynx
mediastinum
the middle section of the chest cavity located between the lungs. This cavity contains the heart and its veins and arteries, the esophagus, trachea, bronchi, the thymus glad, and lymph nodes
nebulizer
an electronic device that pumps air or oxygen through a liquid medicine to turn it into a vapor, which is then inhaled by the patient via a face mask or mouthpiece
otolaryngologist
a physician with specialized training in the diagnosis and treatment of diseases and disorders of the head and neck
pertussis
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
pharyngitis
an inflammation of the pharnyx
phlegm
thick mucus secreted by the tissues lining the respiratory passages
pleurisy
an inflammation of the pleura, the membranes that cover the lungs and line the pleural cavity; causes pleurodynia
pleurodynia
a sharp pain that occurs when the inflamed membranes rub against each other with each inhalation
pnemoconiosis
any fibrosis of the lung tissues caused by dust in the lungs after prolonged environmental or occupational contact
pneumonectomy
the surgical removal of all or part of a lung
pneumonia
a serious inflammation of the lungs in which the alveoli and air passages fill with pus and other liquid
pneumothorax
the accumulation of air in the pleural space, causing a pressure imbalance that causes the lung to fully or partially collapse
polysomnography
the diagnostic measurement of physiological activity during sleep; also known as a sleep study
pulmonologist
a physician who specializes in diagnosing and treating diseases and disorders of the respiratory system
pulse oximeter
an external monitor placed on the patient’s fingertip or earlobe to measure the oxygen saturation level in the blood
pyothorax
a collection of pus in the pleural cavity between the layers of the pleural membrane
sinusitis
inflammation of the sinuses
sleep apnea
a potentially serious disorder in which breathing repeatedly stop and starts during sleep for long enough periods to cause a measurable decrease in blood oxygen levels
spirometer
a recording device that measures the amount of air inhaled or exhaled and the length of time required for each breath
tachypnea
an abnormally rapid rate of respiration, usually of more than 20 breaths per minute
tachypnea
an abnormally rapid rate of respiration, usually of more than 20 breaths per minutes
thoracentesis
the surgical puncture of the chest wall with a needle to obtain fluid from the pleural cavity
thoracotomy
a surgical incision into chest walls to open the pleural cavity for biopsy or treatment
tracheostomy
the surgical creation of a stoma into the trachea in order to inset a temporary or permanent tube to facilitate breathing
tracheotomy
an emergency procedure in which an incision is made into the trachea to gain access to the airway below a blockage
tuberculosis
an infectious disease caused by mycobacterium tuberculosis that usually attacks the lungs; also known as TB, it can also affect other parts of the body
Respiratory System
supplies the blood with oxygen for transportation to the cells in all parts of the body. Oxygen is vital to the survival and function of these cells. The respiratory system also removed carbon dioxide and some water waste from the body.
upper respiratory tract
consists of the nose (nostrils), mouth, pharynx, epiglottis, larynx and trachea
lower respiratory tract
consists of the bronchial tree and lungs. These structures are located within and protected by the thoracic cavity, or thorax, also known as the rib cage
the upper respiratory tract and the bronchial tree of the lower respiratory tract are sometimes referred to as the airway
nose
air enters the body through the nose and passes through the nasal cavity
nostrils
external openings of the nose
nasal septum
is a wall of cartilage that divides the nose into two equal sections.
septum
is a wall that separates two chambers
cilia
thin hairs located just inside the nostrils, filter incoming air to removing debris
mucous membranes
line the nose. These specialized tissues also line the digestive, reproductive, and urinary systems as well as other parts of the respiratory system
mucus
a slippery secretion produced by the mucous membranes that protect and lubricates these tissues. In the nose, the mucus helps moisten, warm, and filter the air as it enters.
mucous
name of the tissue
mucus
the secretion that flows from the tissue
olfactory receptors
are nerve endings that act as the receptors for the sense of smell. They are also important to the sense of taste. These receptors are located in the mucous membrane in the upper part of the nasal cavity - humans have 12 million receptor cells for smell in the upper extreme upper region of the nasal cavity (olfactory region)
tonsils and adenoids
help protect the body from infection coming through the nose or the mouth.
palatine tonsils
also known as the tonsils, are located at the back of the mouth
nasopharyngeal tonsils
also known as the adenoids, are higher up, behind the nose and the roof of the mouth
paranasal sinuses
air-filled cavities lined with mucous membrane, are located in the bones of the skull
sinus
can be a sac or cavity in any organ or tissue, however the term sinus more commonly refers to the paranasal sinusesf
functions of the sinuses are:
- to make the bones of the skull lighter
- to help produce sound by giving resonance to the voice
- to produce mucus to provide lubrication for the tissues of the nasal cavity.
The sinuses are connected to the nasal cavity via short ducts. The four pairs of paranasal sinuses are located on either side of the nose and are named for the bones in which they are located
frontal sinuses
are located in the frontal bone just above the eyebrows. An infection here can cause severe pain in this area
sphenoid sinuses
are located in the sphenoid bone behind the eye and under the pituitary gland, are close to the optic nerves, and an infection here can damage vision
maxillary sinuses
are the largest of the paranasal sinuses, are located in the maxillary bones under the eyes. An infection in these sinuses can cause pain in the posterior maxillary teeth
ethmoid sinuses
are located in the ethmoid bones between the nose and the eyes, are irregularly shaped air cells that are separated from the orbital (eye) cavity by only a thin layer of bone
pharnyx
commonly known as the throat, receives the air after it passes through the nose or mouth, as well as food.
pharynx is made up of three division
nasopharynx
oropharynx
laryngopharynx
Nasopharynx
the first division, is posterior to the nasal cavity and continues downward to behind the mouth. This portion of the pharynx is used only by the respiratory system for the transport of air and opens into the oropharynx
oropharynx
which is the second division, is the portion that is visible when looking into the mouth. The oropharynx is shared by the respiratory and digestive systems and transports air, food, and fluids downward to the laryngopharynx
laryngopharynx
which is the third division, is also shared by both the respiratory and digestive systems. Air, food, and fluids continue downward to the openings of the esophagus and trachea where air enters the trachea and food and fluids flow into the esophagus.
larynx
also known as the voice box, is a triangular chamber located between the pharynx and the trachae
Thyroid cartilage
the largest in supporting the larynx, which is supported by a series of nine separate cartilages. The thyroid cartilage is also known as the Adam’s apple
Larynx contains
the vocal cords. During breathing, the cords are separated to let air pass. During speech, they close together, and sound is produced as air is expelled from the lungs, causing the cords to vibrate against each other
Protective Swallowing Mechanisms
respiratory and digestive system share part of the pharynx. During swallowing, there is a risk of a blocked airway or aspiration pneumonia caused by food or water going into the trachea and entering the lungs instead of going into the esophagus. Two protective mechanisms act automatically during swallowing to ensure that only air goes into the lungs:
The soft plate, which is the muscular posterior portion of the roof of the mouth, moves up and backward during swallowing to close off the nasopharynx. This prevents food or liquid from going up the nose.
At the same time the epiglottis, which 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 lungs
epiglottis
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 lungs
trachea
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 is held open
by a series of flexible C-shaped cartilage rings that make it possible for the trachea to compress so that food can pass down the esophagus
bronchi
are two large tubes, also known as primary bronchi, which branch out from the trachea and convey air into the two lungs (singular, bronchus). Because of the similarity of these structures to an inverted tree, this is referred to as the bronchial tree
Within the lung, each primary bronchus divides and subdivides into increasingly smaller bronchioles, which are the smallest branches of the bronchi
Alveoli
also known as air sacs, are the very small, grapelike clusters found at the end of each bronchiole (singular, alveolus). The alveoli are where the exchange of oxygen and carbon dioxide takes place. Each lung contains millions of alveoli.
During respiration, the alveoli are filled with air from the bronchioles.
A network of microscopic pulmonary capillaries surrounds the alveoli. Pulmonary means relating to or affecting the lungs.
The exchange of oxygen and carbon dioxide between the air inside the alveoli and the blood in the pulmonary capillaries occurs through the thing, elastic walls of the alveoli
The alveoli produce a detergent-like substance, known as surfactant, which reduces the surface tension of the fluid in the lungs. This makes the alveoli more stable so they do not collapse when an individual exhales. Premature babies often lack adequate surfactant
lungs
which are the essential organs of respiration, are divides into lobes.
The right lung is larger and has three lobes: the upper, middle, and lower (or superior, middle, and inferior)
The left lung has only two lobes, the upper and lower, due to space restrictions because the heart is located on that side of the body
mediastinum
is the middle section of the chest cavity and is located between the lungs. The cavity contains connective tissue and organs, including the heart and its veins and arteries, the esophagus, trachea, bronchi, the thymus gland, and lymph nodes
Pleura
allows the lungs to move smoothly within the chest
parietal pleura
is the outer layer of the pleura. It lines the walls of the thoracic cavity, covers the diaphragm, and forms the sac containing each lung. the parietal pleura is attached to the chest wall. Parietal means relating of the walls of a cavity.
visceral pleura
which is the inner layer of pleura that covers each lung, is attached directly to the lungs. Visceral means relating to the internal organs
pleural cavity
also known as the pleural space, is the thing, fluid-filled space between the parietal and visceral pleural membranes. The fluid acts as lubricant, allowing the membranes to slide easily over each other during respiration
diaphragm
also known as the thoracic diaphragm, is 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
phrenic nerves
stimulate the diaphragm and cause it to contract
diaphragm
refers to a dividing structure, so the term is also used to describe a contraceptive device that separates the vagina from the cervix
respiration
or breathing is the exchange of oxygen for carbon dioxide that is essential to life. A single respiration, or breath, consists of one inhalation and one exhalation. Ventilation is another word for moving air in and out of the lungs.
inhalation
is the act of taking in air as the diaphragm contracts and pulls downward. this action causes the thoracic cavity to expand. This produces a vacuum within the thoracic cavity that draws air into the lungs