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).
B. Comparison of SNS (Somatic Nervous System) to ANS (Autonomic Nervous System) Diagram. ANS differs from the SNS in: Thier effectors SNS innervates skeletal muscle and ANS innervates smooth and cardiac muscle and glands. Efferent pathways SNS - cell bodies of the motor neuron are in the CNS, and their axons extend in spinal nerves all the way to skeletal muscles.