Could someone help me on question 15 and17 pls

I believe 15 is Vomit since it's the other way of how to say throw up that starts with a V. And I'm pretty sure 17 is Digestive system.

Hope this helps :)

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .