A strict order to not treat by a medical doctor should always be honored, especially in the case of a medical condition that can be adversely affected by massage. If the client insists on massage, then the massage therapist should recommend that the client obtain a second opinion and an authorization letter or prescription from another doctor.

The mitral valve is also known as the bicuspid, which controls blood flow between the opening of the left atrium into the left ventricle.

The masseter is a dense muscle with a superficial head and a deep head both of which originate from the zygomatic arch of the temporal bone.

It is important to know what the names of muscles refer to when remembering their locations. In this case, deltoid means triangular and, thus, the deltoid muscle is a triangular muscle.

Nerves that send messages to the central nervous system (CNS) are called afferent nerves. Sensory receptors are examples of afferent nerves. The nerves that send messages from the CNS to the body are called efferent nerves. Somatic nerves are an example of efferent nerves.