What is the fundamental difference in the adaptive immune system’s response between the first and second exposure to an antigen?

Surface barriers, like the skin, is an example of the ________ defense system.

Which of the following are functions of the lymphatic system (select all that apply):

Match the following cell types to their description.

Match the following accessory organs of the digestive system to their functions.

Identify the structure labelled ‘XII’.  

Identify the structure labelled ‘7’.  

Your client has an order for Rocephin 250 mg IM.  After reconstitution, you have 125 mg/mL. Select the appropriate amount and location for administration. 

What does Cullen sign indicate?

What should the nurse recommend to older adult patients in an effort to promote bone health?