As our pets age their risk of developing chronic diseases of different body organs increases. (tampabayvets.net)
Nerves that go to and from different body organs and our nervous system is divided into the voluntary and the involuntary, or autonomic, nervous system and our autonomic nervous system is divided into the sympathetic and parasympathetic nervous systems. (taliand.com)
Dopamine has many functions in different body organs too. (emedicalhealth.net)