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by BlastRoom
The barriers and non-specific responses, and the four signs of inflammation.
#us_hs_anatomy_physiology
20 questions
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The body surface stays near pH 5, making it hard for many bacteria to settle and multiply there. Which innate defense is described?
Goblet cells make a sticky layer that traps dust and pathogens before they reach delicate gas-exchange surfaces. Which defense is doing this job?
Tiny hairlike projections beat in waves to move trapped particles toward the throat. What airway defense is this?
An enzyme in eye fluid and spit breaks peptidoglycan in bacterial cell walls. Which chemical defense is acting?
Swallowed pathogens enter a chamber where pH 1.5 to 3 can denature their proteins. Which barrier is described?
Resident organisms on skin and mucous membranes use attachment sites and nutrients before pathogens can. Which defense is this?
Inactive plasma proteins are triggered by a bacterial surface and assemble a pore that can rupture the microbe. Which defense is responsible?
A virus-infected body cell releases a signal that makes nearby cells slow viral replication. Which protein carries that warning?
Short-lived white blood cells leave capillaries early in an infection and engulf bacteria in pus-forming tissue. Which cells are these?
Long-lived cells stationed in tissues engulf microbes and dead cells during a nonspecific response. Which cells perform this cleanup?
A lymphocyte-like innate cell recognizes a stressed body cell and releases perforin and granzymes to trigger apoptosis. Which cell is acting?
A connective tissue cell degranulates near an injury and releases histamine, starting local vascular changes. Which cell is it?
Skin around a splinter turns red and feels warmer within an hour. Which tissue change produces both signs?
A scraped knuckle becomes puffy and tight after fluid collects around the injury. Which change caused that sign?
An inflamed paper cut throbs and hurts when touched. What local change best explains the pain?
A sprained ankle is red, warm, swollen, and painful, and the person cannot put weight on it. Which sign of inflammation does the trouble bearing weight show?
A deep puncture carries bacteria below the epidermis. What follows because the surface barrier was bypassed?
A large burn removes epidermis over part of the back. Which immediate consequence follows?
An endotracheal tube passes air beyond the nose and upper throat. Which consequence follows from bypassing that filtering route?
When stomach pH stays unusually high, swallowed bacteria survive passage more often. What follows from weakening that chemical barrier?
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Vaccines, Allergies and Autoimmune Disease
20 questions
