What should you do if you feel "in over your head"?

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

1. alcohol first impairs your a. motor skills b. judgment c. color recognition

What region is located between the shoulder blades