A valve-like structure around a body opening and passage that controls the movement of substances into and out of the passages is called a(n) ________.

Fill in the blank(s) with the appropriate word(s).


sphincter

Sphincters control the movement of substances into and out of passages.

Health Professions

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Body plethysmography is based on which of the following gas laws?

a. Boyle's c. Dalton's b. Charles' d. Gay-Lussac's

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Answer the following statement(s) true (T) or false (F)

Standard 9.07 does not prohibit psychologists from supervising trainees in the administration, scoring, and interpretation of tests.

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On average, an arterial bleed takes how many minutes to clot with direct pressure?

A. two B. three C. five D. ten

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A young boy was running with a pencil and tripped. The pencil impaled the boy's left eye and remains lodged in place. He is in his mother's arms and both are crying hysterically. Appropriate care for the eye would include:

A) carefully removing the pencil from the eye to prevent the loss of vision, then providing immediate transport. B) applying ice to the affected eye to decrease pressure, swelling, and subsequent damage. C) applying gentle pressure to the pencil and eye to prevent movement followed by immediate transport. D) covering both eyes and providing immediate transport.

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