The ________ causes muscles to contract or relax and glands to secrete products.

Which of the following are the most common sites for the percutaneous sampling of arterial blood for blood gas analysis?

1. Earlobe 2. Radial artery 3. Brachial artery 4. Side of the heel a. 1 and 2 c. 3 and 4 b. 2 and 3 d. 1 and 4

Examination of stained smears is the best way to identify nematode (roundworm) parasites.

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