During swallowing, the ________ folds back over the glottis, preventing the entry of liquids or solids into the respiratory passageways.
Fill in the blank(s) with the appropriate word(s).
epiglottis
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The axons controlling skeletal muscles originate in the frontal lobe
Indicate whether the statement is true or false
In order to ensure that some proteins are properly folded, the cells use __________, such as heat shock proteins
Fill in the blank with the correct word.
Which of the following descriptions best matches the term colony stimulating factor?
A) adheres to collagen beneath endothelium B) helper cells are one type C) hormone that regulates white blood cell formation D) kills bacteria using hydrogen peroxide E) often elevated in allergic individuals
The hard, dense bone that forms the outer surface of bones is:
A) compact bone. B) cancellous bone. C) spongy bone. D) articular cartilage.