Terms in this set (97)
Which of the main bronchi is larger in diameter?
Which of the main bronchi is more horizontal?
Which of the main bronchi is the most common site for lodging of a foreign object?
Where does the air enter the nasal cavity?
The nasal cavity is divided by the midline?
The mucosa in the nasal cavity has several functions as in?
cleaning humidifying and warming the air
Sinuses make the skull less heavy and act as a resonance chamber for?
The passageway common to the digestive and respiratory systems is the?
The Pharynx connects the nasal cavity with the?
Clusters of lymphatic tissue that are important to the defensive system of the body?
Reinforcement of the trachea with cartilidge rings prevent its collapse during what changes in the breathing?
The larynx or voice box is built from many cartilidge but that largest is?
Within the larynx are the?
Vocal cords allow vibration of air and for the person to?
Smallest conducting respiratory passageways
Separates the oral and nasal cavities
Major nerve that stimulates the diaphragm
Food passageways posterior to the trachea
Closes of the larynx during swallowing
Actual site of gas exchange
Pleura layer covering the thorax walls
Pluera layer covering the lungs
Lumen of Larynx
Fleshy lobes in the nasal cavity which increase its surface area
Vibrate with expired air
In healthy lungs it is always lower than the atmospheric pressure (it is a negative pressure)
Pressure of air outside the body
As it decreases air flows into the passageways of the lungs
As it increases over atmospheric pressure air flows out of the lungs
If this pressure is equal to the pressure to the atmospheric pressure the lung collapses
Rises well over atmospheric pressure during a forceful cough
Also known as a intra-alveolar pressure
If the diaphragm is contracted or moves downward the volume of the thorax with move
If the diaphragm is contracted or moves downward the internal pressure of the thorax will go
If the diaphragm is contracted or moves downward the size of the lungs with go
If the diaphragm is contracted or moves downward the volume of the direction of air flow goes
into the lung
If the diaphragm is relaxed or moves superiorly the internal volume of the thorax will go
If the diaphragm is relaxed or moves superiorly the internal pressure of the thorax will go
If the diaphragm is relaxed or moves superiorly the size of the lungs will go
If the diaphragm is relaxed or moves superiorly the direction of air flow will move
Sudden inspiration resulting from spasms of the diaphragm
A deep breath is taken in the glottis is closed air is forced out of the lungs against the glottis clears the lower respiratory passageways
A deep breath is taken in the glottis is closed air is forced out of the lungs against the glottis clears the lower respiratory passageways (THE UPPER ONES)
Increases ventilation of the lungs may be initiated by a need to increase oxygen levels in the blood
Respiratory volume inhaled or exhaled during the normal breathing
Air in respiratory passages that does not contribute to gas exchange
dead space volume
Total amount of exchangeable air
Gas volume that allows gas exchange to go on continuously
Amount of air that can still be exhaled after a normal exhalation
expiratory reserve volume
All gas exchanges are made by
When substances pass in diffusion they pass from
higher to lower concentrations
Thus oxygen continually passes
air of alveoli to capillary blood and capillary blood to tissue cells
Carbon dioxide moves from the
tissue cells to the capillary blood and from the capillary blood to the alveolar air
Arterial blood tends to be ________ and venous blood is oxygen poor and carbon dioxide rich
carbon dioxide poor and oxygen rich
Most oxygen is transported bound to
Most carbon dioxide is carried in the form of ___ in the _____
Carbon monoxide poisoning is lethal because it competes with the ____ for binding sites
Lack of cessation or breathing
Normal breathing in terms of rate or depth
Labored breathing "air hunger"
Chronic oxygen deficiency
Condition characterized by fibrosis of the lungs and increase of the alveolar chambers
Condition characterized by the increased mucus production which clogs respiratory passageways and promotes coughing
Respiratory passageways narrowed by the bronchiolar spasms
Together called COPD
Incidence strongly associated with cigarette smoking outlook is poor
Infection spread by airborne bacteria a recent alarming increase in drug users and aids
The major conducting passageways that air travels through to reach the lungs
nose pharynx laryx trachea bronchi bronchioles lungs alveoli
What is the scientific medical way to say nostrils?
nasal septum factory of receptors in slitlike superior part of the mucosa cavities
Anatomy of the nose and nasal cavity
sup middle and inf. conchae nasal cavity nasopharynx
Why can nosebleeds become common?
mucosa has rich network of thin walled capillaries superficial that are broken easily
What is nasal cilia?
closes sinuses and moves the contaminated mucus to the throat
Why are runny noses developed when the weather is cold?
when the cilia in your nose are cold they move more easily and and so it builds up
What are the nasal conchae and what do they do?
the expand the nasal cavity and increase the surface area clean warm and humidify
What separates the cavities?
palate (hard and soft)
What are 2 functions of the paranasal sinuses?
to lighten the skull and chambers of speech
Inflammation of the mucosa is called
What is rhinitis caused by?
cold viruses or allergens
The pharynx is also the
The 3 subdivisions of the pharynx from sup to inf.
nasopharynx oropharynx laropharynx
What is ottis media?
ear infection, the tube is connected to the throat and so the infection starts there
The larynx is also the
What is the purpose of the epiglottis?
it blocks the trachea while eating
What are the true vocal cords? how do they produce sound?
part of the folds in mucous membranes larynx vibrates
Passageway between vocal cords?
Why is smoking bad?
destroys cilia in the resp tract and mucus accumulates
When you choke it is in the right bronchus why?
it is wider shorter and straighter
What part of the thoracic cavity doesnt hold the lungs? why?
mediastinum..occupied by the heart vessels, bronchi, esophagus and thymus
The right lung has how many lobes?
3 and 2
inflammation of the lungss decreased pleura fluid or excess
What happens to bronchi?
the go to bronchioles
What is the respiratory zone and what is its function?
The respiratory zone is made up of the respiratory bronchioles, the alveolar ducts and sacs, the alveoli and respiratory membranes. it is for gas exchange
What is the last passage they pass through?
Lungs are and how much do they weigh?
air spaces and 5lbs
Elastic tissue of the lungs
Consistency of lungs
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