bronchioles
Small lung passages
Bronchioles are the smallest airways in the lungs, tiny tubes that branch from the bronchi and end in clusters of air sacs called alveoli.
They lack cartilage and control airflow through muscular walls that can constrict or relax.
In asthma, the bronchioles narrow and restrict breathing.
Lung's gas-exchange chambers
- terminalAt the endpoint
- respiratoryRelated to breathing organs
- segmentalDivided into sections
- lobarOf rounded projections
epithelial · cilia · cartilage · lobules · pulmonary · capillaries · trachea · mucosa
Chronic lung inflammation
- bronchospasmInvoluntary narrowing of airways
- bronchoconstrictionAirway narrowing from muscle contraction
- inflammationProtective tissue response
- wheezingHarsh, whistling respiration
obstruction · COPD · emphysema · hypersensitivity · fibrosis
Adding breathable gas
- ventilationCirculation of fresh air
- airflowMovement of atmosphere
- diffusionPassive molecular spreading
- perfusionFluid delivery to tissue
Portable respiratory medication device
- nebulizerMist-making breathing apparatus
- albuterolBronchodilator for asthma
- anticholinergicBlocks acetylcholine receptors
- corticosteroidAdrenal-derived inflammation suppressant
alveoli
Lung's gas-exchange chambers
- terminalAt the endpoint
- respiratoryRelated to breathing organs
- segmentalDivided into sections
lobar · epithelial · cilia · cartilage · lobules · pulmonary · capillaries · trachea · mucosa · lumen
asthma
Chronic lung inflammation
- bronchospasmInvoluntary narrowing of airways
- bronchoconstrictionAirway narrowing from muscle contraction
- inflammationProtective tissue response
wheezing · obstruction · COPD · emphysema · hypersensitivity · fibrosis
oxygenation
Adding breathable gas
- ventilationCirculation of fresh air
- airflowMovement of atmosphere
- diffusionPassive molecular spreading
inhaler
Portable respiratory medication device
- nebulizerMist-making breathing apparatus
- albuterolBronchodilator for asthma
- anticholinergicBlocks acetylcholine receptors
- breathingbreathing, inhalation, breath, exhalation, breathe
- Lungslungs, lung, alveoli, airways, air sacs
- Respirationbreathing, lungs, inhalation, inhaling, exhalation
- cardiopulmonaryheart rate, lungs, blood pressure, circulation, breathing
- respiratory systemlungs, trachea, airways, larynx, pharynx
- breathing organslungs, gills, alveoli, air sacs, book lungs
bronchiolestrachea
Respiratory airway tube
windpipe · upper airway · larynx · pharynx · nasal passages