Which of the following are functions of synovial fluid?  (mark all that apply)

The insertion of a muscle is

Explain the stimulus for muscular contraction.  Include what neurotransmitter is used, where this takes place, and what is done to prevent continuous stimulation.

The neurotransmitter ____ creates a sense of feeling good and at low levels may lead to depression.

The cornea functions in:

The ability to ignore unimportant stimuli is called

Automatic, subconscious responses to stimuli are called

This type of receptor responds to changes in temperature.

______ characterizes the listener’s feelings. (Example: “When you [action], I feel [reaction]”)

How did Korea’s geography influence its historical conflicts and historiography?