Those organ systems of the animal body which mediate overt behavior. Overt behavior consists of either movement or secretion. ... Movement results from contraction of muscle. Secretion is a function of glands.

What is the effector in the nervous system?

Muscles and glands are called effectors because they cause an effect in response to directions from the nervous system. This is the motor output or motor function.

What is an effector and what does it do?

Effectors are parts of the body - such as muscles and glands - that produce a response to a detected stimulus. For example: a muscle contracting to move an arm. muscle squeezing saliva from the salivary gland. a gland releasing a hormone into the blood.