The autonomic nervous system, or ANS, is a network of motor neurons that regulates the activity of smooth muscles, cardiac muscles, and glands.
The ANS is …
The sympathetic division of the ANS prepares the body for stress, physical activity, and increased energy demands.
Its preganglionic fibers originate in …
The sympathetic chains are paired ganglia located bilaterally along the spinal cord.
They are synapse sites between the preganglionic and postganglionic …
The collateral ganglia are the synapse sites between the preganglionic and postganglionic fibers that innervate the abdominal and pelvic region organs.
…
The sympathetic nervous system triggers numerous physiological changes to prepare the body for the fight-or-flight response.
During rigorous physical …
The parasympathetic division of the ANS operates during non-stressful situations, allowing for relaxation and energy conservation. It promotes digestion, …
The cranial part of the ANS parasympathetic division consists of preganglionic fibers that originate in the brainstem and innervate various structures in …
Parasympathetic signaling relays information from the nervous system to target organs, promoting rest, digestion, and relaxation responses. This pathway …
Abnormal regulation of smooth muscle function is a characteristic of many autonomic nervous system disorders.
The most severe of these disorders include …
The autonomic nervous system (ANS) consists of two branches, the parasympathetic and sympathetic nervous systems, and controls the function of internal …
Sympathetic neurons from the embryonic rat superior cervical ganglia (SCG) have been used as an in vitro model system for peripheral neurons to study …
