Examlex
All of the following are advantages of exercise machines compared to free weights,EXCEPT
Valsalva Maneuver
A technique where one attempts to exhale forcefully with a closed mouth and pinched nose, used in medical examinations.
Occult Blood
Blood present in such small quantities that it is not visible to the naked eye, often detected through specific tests.
External Sphincter
A circular muscle that helps to control the passage of substances out of a body cavity or organ, such as the anus or urethra.
Anal Area
The region surrounding the anus, which is the external opening of the rectum, important in the defecation process and subject to various medical conditions.
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