When responding to a doorbell all three types of muscle tissue help you respond.

A. Eyelids open
   
B. Eyeballs are moved

C. Increased contraction of diaphragm (breathing rate)

D. Vasoconstriction in internal organs, which directs more blood to the brain

E. Contraction of muscles creating speech and facial expressions

F. Increased rate of contraction (heart rate
   
G. iris contracts in response to increased light

H. Increased force of contraction (stroke volume)

I. Vasodilation in blood vessels supplying the skeletal muscles
   
J. Contraction and relaxation creating an upright posture and movement of the skeleton


   
1.   Smooth Muscle

2.   Cardiac Muscle

3.   Skeletal Muscle

4.   This function is not important to respond to a doorbell