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Human Anatomy -Respiratory System
All aspects of the Respiratory System
49
Science
12th Grade
03/26/2010

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Cards

Term
What are 5 general functions of the respiratory system?
Definition
1. Take air from outside the body and bring it into the lungs
2. Filter the air
3. Exchange CO2 and O2
4. Removes CO2 from body
5. Regulates ph of blood
Term
What is respiration?
Definition
The general process of taking air from the outside and bringing it to the body cells
Term
What are the three major categories of respiration? Where does it take place?
Definition
1. pulmonary ventilation- in lungs
2. external respiration- alveoli & blood, happens in lungs
3. internal respiration- capillaries, tissue cells
Term
What are the major organs that are involved in respiration?
Definition
nose, pharynx, larynx, trachea, bronchi, lungs
Term
Gas exchange only happens in _______.
Definition
alveoli
Term
The nose is made of _________.
Definition
cartilage
Term
What prevent large items from entering through the nose?
Definition
nose hair
Term
The nasal cavity is surrounded by the __________ _________.
Definition
paranasal sinuses
Term
What is the main function of paranasal sinuses?
Definition
to lighten the skull, resonance for speech, mucus
Term
What is the disease rhinitis?
Definition
inflammation of nasal mucosa by colds, allergens
Term
What is the disease sinusitis?
Definition
inflamed sinuses, causes headache
Term
What does the Pharynx do?
Definition
Shoots food down towards the esophagus and shoots air down the trachea
Term
The larynx contains the ______ _______.
Definition
vocal cords
Term
How is sound produced in the larynx?
Definition
Sound is produced when air squeezes between the vocal cords, which causes vibrations, causing sound waves. Words are formed when the shape of the larynx and oral cavity is changed by moving your lips and tongue.
Term
What is the largest hyaline cartilage?
Definition
the thyroid cartilage a.k.a Adam's Apple
Term
The walls of the trachea contain what? What does it help do?
Definition
ciliated mucous membranes; trap particles which are pushed up into the pharynx for removal (cough)
Term
The alveoli is surrounded by________.
Definition
capillaries
Term
Gas is exchanged by what method?
Definition
diffusion
Term
The alveoli produces ________, which coats the inside of lungs to keep them moist.
Definition
surfactant
Term
The apex of the lungs is the ______ _______ _______.
Definition
narrow superior part
Term
The lung's base sits on the what?
Definition
diaphragm
Term
How many lobes are on the left and right of the lungs?
Definition
2 on left
3 on right
Term
Where does gas exchange happen?
Definition
in the respiratory zone
Term
Describe inspiration.
Definition
diaphragm and external intercostals contract, the size of the thoracic cavity increases. internal pressure is 758
Term
What is the normal atmospheric pressure?
Definition
760
Term
Describe expiration.
Definition
Diaphragm and external intercostals relax, the size of the thoracic cavity decreases. internal pressure is 762
Term
What is tidal volume?
Definition
normal breathing
Term
What is inspiratory reserve volume?
Definition
forcibly taken in
Term
What is expiratory reserve volume?
Definition
forcibly exhaled
Term
What is vital capacity?
Definition
total exchangeable air
Term
What is residual volume?
Definition
air that is still there after strenuous exhalation
Term
What is total lung capacity?
Definition
vital capacity + residual volume
Term
What is eupnea?
Definition
normal quiet breathing
Term
Costal breathing is _____ _____ ______.
Definition
shallow chest breathing
Term
What is diaphragmatic breathing?
Definition
deep abdominal breathing
Term
What does a cough do?
Definition
clears lower respiratory passages
Term
Why do you sneeze?
Definition
it clears upper respiratory passages
Term
What causes hiccups?
Definition
spasms of the diaphragm
Term
Explain external respiration through pulmonary gas exchange.
Definition
Converts deoxygenated blood from the right side of the heart to oxygenated blood to the left side of the heart. Oxygen diffuses from alveoli to deoxygenated blood. CO2 diffuses from deoxygenated blood to alveoli.
Term
Explain internal respiration through systemic gas exchange.
Definition
Exchange of CO2 and O2 through systemic capillaries and tissue cells.
Term
What is the range of the pH of blood?
Definition
7.35-7.45
Term
How is CO2 removed?
Definition
By bicarbonate ions
Term
What are some factors that influence respiratory rate and depth?
Definition
talking, coughing, exercise, singing, swimming, holding breath
Term
What are some factors that influence respiratory rate and depth?
Definition
talking, coughing, exercise, singing, swimming, holding breath
Term
If the pH of blood drops what happens?
Definition
you hyperventilate to expel more CO2 and raise pH level
Term
If pH is too high what happens?
Definition
hypoventilation occurs to get more CO2 to lower pH
Term
What are the two control centers for breathing?
Definition
pons and medulla
Term
What is apnea?
Definition
not breathing
Term
What is dyspnea?
Definition
difficulty breathing
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