Which layer of the wall of the alimentary canal contracts to move materials through the canal?
A. Mucosa
B. Submucosa
C. Muscular layer
D. Serosa
E. Peritoneum
C. Muscular layer
The muscular layer of the alimentary canal contracts to move materials through the canal.
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To confirm the integrity of the cylinder and that no leaks exist, the U.S. DOT requires a ________ at least every 5 years.
A. pressure regulator B. pin index safety system C. hydrostatic test D. liter flow exam
____ affects virtually all tissues in the body, and therefore may have a variety of effects, with the most common manifestation is joint pain and swelling, which affects approximately 95% of patients.
A. Lupus pernio B. Rheumatoid arthritis C. Systemic lupus erythematosus D. Angioedema
Which of the following is NOT required in a Doctor's First Report?
a. Return to work status b. Injury assessment c. Treatment plan d. Discharge plan
The cartilage rings in the trachea are ________-shaped.
A. L B. H C. T D. C