respiratory system Flashcards
primary functions
To provide oxygen to body tissues for cellular respiration
Remove the waste product carbon dioxide
Help to maintain acid-base balance
secondary functions
Sensing odors
Speech production
conducting zones
moves air in and out of lungs
respiratory zone
moves gases in and out lungs
nose
surface and skeletal structures
pharynx
The human pharynx (plural: pharynges) is the part of the throat situated immediately posterior to the mouth and nasal cavity, and superior to the esophagus and larynx.
larynx
is the cartilaginous structure that connects the pharynx to the trachea and helps regulate the volume of air that enters and leaves the lungs.
trachea
is a tube that connects the pharynx or larynx to the lungs, allowing the passage of air.
Alveolar duct
is a tube composed of smooth muscle and connective tissue, which opens into a cluster of alveoli.
Alveolus
is one of the many small, grape-like sacs that are attached to the alveolar ducts.
Alveolar sac
is a cluster of many individual alveoli that are responsible for gas exchange.
Boyle’s Law (formula)
P1V1 = P2V2
Boyle’s Law (text explanation)
Pressure and volume are inversely related.
Inspiration
breathing in
Expiration
breathing out
Medulla Oblongata
The control center that tells us to breathe
Eupnea
is a mode of breathing that occurs at rest and does not require the cognitive thought of the individual.
Diaphragmatic breathing
requires the diaphragm to contract. As the diaphragm relaxes, air passively leaves the lungs.
Hyperpnea
is a mode of breathing that can occur during exercise or actions that require the active manipulation of breathing, such as singing.
Diaphragm
This is the main breathing muscle
Atelectasis
A condition in which the air sacs of the lungs are either partially or totally collapsed.
Pneumonia
Pneumonia is a lung infection that can be caused by either viruses, fungi, protists, or bacteria.
Emphysema
he alveolar air sacs are destroyed and the lung itself becomes “floppy”
Chronic Bronchitis
inflamed airways and large amounts of sputum are being produced.