There are ________ primary channels on the left half of the body

When assessing a 65-year-old male patient, you note a tube-like device inserted into the lower portion of his trachea. You recognize that the device has most likely been placed to:

A) to permit the exchange of O2 and CO2. B) to allow the patient to be fed a liquid diet. C) to allow the patient to talk. D) to allow easy suctioning of the lower airway.

In which of the following types of grip does the thumb play a very minimal role?

a. Hook grip b. Tip-to-tip prehension c. Spherical grip d. Cylindrical grip