The neurotransmitter Acetylcholine (Ach) excites cardiac muscle  

A bundle of axons in the central nervous system is a:

Which glial cell is found wrapped around axons in the PNS?

Which neurotransmitter is not classified as a catecholamine?

The synovial membrane is

the outer membrane that lines the synovial cavity.

Which of the following is a disorder that results in damage to joints?

There are seven cervical, fourteen thoracic, and five lumbar vertebrae.

How many pairs of floating ribs does the typical person have?

Which facial bone is completely located within the medial wall of the eye orbit?