The main functions of the fetal lung are to produce amniotic fluid and a material called surfactant that reduces the surface tension of the fluids that line the bronchioles
Using n3D technology, however, researchers were able to magnetically levitate bronchiole
tissue to the air-liquid interface so that airborne toxins can be exposed to the epithelial layer of the tissue, just as would occur in human lungs.
By the end of this time, major conducting airways to the terminal bronchioles
Body Parts Spelling Bee Words Beginner (6 and under) hip head eye temple face cheek jaw scalp arm leg limb breast vein kidney ureter cord pons dura tube nail Junior (7 and 8) skin skeleton orbit pinna socket globe nasal space ear canal brain stem spinal cord vertebra tonsil spleen root lymph vocal cord nervous system frontal lobe cornea anvil Advanced (9 and 10) cranium hard palate soft palate suture lymph node dendrite hormone sclera stirrup olfactory vomer uvula epiglottis cricoid pharnyx pectoral intercostal acetabulum vena cava subclavian Super (11 and 12) ganglion bronchiole
cementum malleolus zygomatic lacrimal ossicle ethmoid epigastric sacroiliac inguinal mesentery trigeminal ischium lymphocyte corpus callosum photoreceptor pterygoid maxillary sinus foramen magnum
Junior Advanced Super (7and 8) (9 and 10) (11 and 12) skin cranium ganglion skeleton hard palate bronchiole
orbit soft palate cementum pinna suture malleolus socket lymph node zygomatic globe dendrite lacrimal nasal space hormone ossicle ear canal sclera ethmoid brain stem stirrup epigastric spinal cord olfactory sacroiliac vertebra vomer inguinal tonsil uvula mesentery spleen epiglottis trigeminal root cricoid ischium lymph pharnyx lymphocyte vocal cord pectoral corpus callosum nervous system intercostal photoreceptor frontal lobe acetabulum pterygoid cornea vena cava maxillary sinus anvil subclavian foramen magnum
ganglion inguinal bronchiole
mesentery cementum trigeminal malleolus ischium zygomatic lymphocyte lacrimal corpus callosum ossicle photoreceptor ethmoid pterygoid epigastric maxillary sinus sacroiliac foramen magnum
The lungs of control animals showed prominent tumor nodules around terminal bronchiole
Trachea and lung (including bronchus, bronchiole
, and pulmonary alveoli) from 3 animals per species were examined.
After the terminal bronchiole
, the following seven generations of dichotomous divisions are called respiratory bronchioles
and serve the gas-exchanging parenchyma consisting of budding alveoli.
Each "grape," or alveolus, shares with other alveoli an opening into a duct connecting it to the respiratory bronchiole
The final generation of membranous bronchiole
is termed terminal bronchiole
and opens into a functional unit of the lung termed an acinus, which is composed of respiratory bronchioles
, alveolar ducts, and alveoli.
Grading of Severity of Fibrosis for Asbestosis Cases Grade 0 No appreciable peribronchiolar fibrosis, or less than half of bronchioles
involved Grade 1 Fibrosis confined to the walls of respiratory bronchioles
and the first adjacent tier of adjacent alveoli, with involvement of more than half of all bronchioles
on a slide Grade 2 Extension of fibrosis to involve alveolar ducts and/or 2 or more tiers of alveoli adjacent to the respiratory bronchiole
, with sparing of at least some alveoli between adjacent bronchioles
Grade 3 Fibrotic thickening of the walls of all alveoli between at least 2 adjacent respiratory bronchioles
Grade 4 Honeycomb changes Table 2.