Based on the lung anatomy, which side of the lung is more susceptible to aspirated material?
What is the right lung.
100
The routes of exposure of a sprayed solvent-suspended herbicide are __________, ___________, ___________, ___________, and ___________.
What is inhalation, ingestion, dermal absorption, eyes, ears.
100
Could an individual become drunk (recreational intoxication) by applying ethyl alcohol to the skin?
What is yes!
200
Regarding inhalation exposures, entry through the nose differs from the mouth by?
What is degree of particulate filtering (straight into the pharynx).
200
Two characteristics of a contaminant that define its extent of dermal exposure are _________ and __________.
What is physical (size) and chemical (solubility).
300
The main mode of particulate deposition in the upper respiratory tract is ____________ and consists of particulates greater then ___________ microns.
What is impaction and 10 microns.
300
The layer of skin cells that regulate entry of substances into the skin is _____________. A contaminant can gain entry into the circulatory system if it can pass the _________ skin layer.
What is stratum corneum and epidermis.
400
Particulates that can penetrate to the middle region of the respiratory tract enter into the _________ airway and if greater then 5 microns, deposit via _________ and _________.
What is bronchi, sedimentation, and impaction.
400
Nanoparticules are less then ___ microns and deposit in the __________ respiratory tract via ___________.
What is 0.1 mircons, lower, and Brownian diffusion.
500
The cellular difference between the upper and middle regions of the respiratory tract to the lower region is __________ versus __________. How do these cells differ in regards to deposited particulate removal?
What is ciliated epithelial cells (motion and mucus) and alveolar epithelial cells (macrophages).