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TLS Online TPP Program

#Question id: 2016

Most newly emerging diseases, no matter how severe their effects on a population, human or otherwise, have which of the following in common?

#Unit 4. Cell Communication and Cell Signaling

  1. greater severity as there are more and more occurrences of the infection

  2. major pandemics, spreading the infection far and wide in the population

  3. a tendency to die out rather quickly, cease to reproduce, or cause a less severe effect on the host

  4. a destruction of the host immune system and eventual cancer

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TLS Online TPP Program

#Question id: 12051

#Unit 7. System Physiology – Animal

Migrating motility complexes (MMC) occur about every 90 min between meals and are thought to be stimulated by the gastrointestinal hormone, motilin. An absence of MMCs causes an increase in which of the following?
TLS Online TPP Program

#Question id: 12052

#Unit 7. System Physiology – Animal

Parasympathetic stimulation increases gastrointestinal motility and sympathetic stimulation decreases motility. The autonomic nervous system controls gut motility by changing which of the following?
TLS Online TPP Program

#Question id: 12053

#Unit 7. System Physiology – Animal

Swallowing is a complex process that involves signaling between the pharynx and swallowing center in the brainstem. Which of the following structures is critical for determining whether a bolus of food is small enough to be swallowed?
TLS Online TPP Program

#Question id: 12054

#Unit 7. System Physiology – Animal

A 54-year-old woman eats a healthy meal. Approximately 20 min later the woman feels the urge to defecate. Which of the following reflexes results in the urge to defecate when the stomach is stretched?
TLS Online TPP Program

#Question id: 12055

#Unit 7. System Physiology – Animal

Which of the following is a likely consequence of ileal resection?
TLS Online TPP Program

#Question id: 12056

#Unit 7. System Physiology – Animal

A 68-year-old woman with hematemesis has heartburn and stomach pain. Endoscopy shows inflammation involving the gastric body and antrum as well as a small gastric ulcer. Biopsies were positive for Helicobacter pylori. H. pylori damages the gastric mucosa primarily by increasing mucosal levels of which substance?