Proper insertion of the needle into the cricothyroid membrane involves a _ angle toward the ______.

The cricothyroid membrane, also known as the cricothyroid ligament, is comprised of a yellow elastic tissue attached to the cricoid cartilage. One of the most common treatments for vocal nodules involves the injection of the cricothyroid membrane with local steroids. Proper injection of this area involves inserting the needle in a 45 degrees angle toward the feet. This helps to avoid the blood vessels located in the surroundings.

Proper insertion of the needle into the cricothyroid membrane involves a ___ angle toward the ________.

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Proper insertion of the needle into the cricothyroid membrane involves a _ angle toward the ______.