Hepatitis B: Symptoms. In many cases there are no symptoms in the early stages of hepatitis B infection. Many children and some adults do not develop any symptoms until complications, such as cirrhosis develop. Symptoms of hepatitis B can include flu-like symptoms, fever, headache, nausea, muscle aches and weakness.
The autonomic nervous system (ANS) is a very complex, multifaceted neural network that maintains internal physiologic homeostasis. This network includes cardiovascular, thermoregulatory, GI, genitourinary (GU), and ophthalmologic (pupillary) systems (see the following image).
Ankylosing spondylitis (AS) is a systemic and chronic inflammatory rheumatic disease of the axial skeleton mainly affecting young male subjects. The clinical manifestations of AS include inflammatory back pain, unilateral or alternative buttock pain, peripheral arthritis and enthesitis and/or dactylitis.