Where are autonomic nerves located?

The term autonomic nervous system (ANS) refers to collections of motor neurons (ganglia) situated in the head, neck, thorax, abdomen, and pelvis, and to the axonal connections of these neurons (Figure 1).

Where is sympathetic trunk located?

vertebral column
The sympathetic trunks (see Figs 3.25, 3.26) lie on each side of the vertebral column, extending from the base of the skull to the coccyx where the two chains fuse together. Each trunk contains a number of sympathetic ganglia, the thoracic region having about 11 ganglia which lie on the neck of the ribs.

What is located in the autonomic nervous system?

The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal. It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.

Which part of the nervous system is considered the main trunk line?

The CNS sends and receives neural messages through the spinal cord, a trunk line of neurons that connects the brain to the PNS. The trunk line itself is housed in a hollow portion of the vertebral column, called the spinal column.

Is the CNS part of the autonomic nervous system?

Key Takeaways. The body uses both electrical and chemical systems to create homeostasis. The CNS is made up of bundles of nerves that carry messages to and from the PNS. The peripheral nervous system is composed of the autonomic nervous system (ANS) and the peripheral nervous system (PNS).

Where is the sympathetic trunk ganglia?

ganglia are located in the sympathetic trunks, two long chains of ganglia stretching along each side of the vertebral column from the base of the skull to the coccyx; these are referred to as paravertebral ganglia.

Is the autonomic nervous system part of the CNS?

The brain and spinal cord make up the central nervous system. The peripheral nervous system is comprised of the somatic and autonomic nervous systems. The somatic nervous system transmits sensory and motor signals to and from the central nervous system.

Where is the central nervous system located in the brain?

In vertebrates the CNS is contained within the dorsal body cavity, with the brain is housed in the cranial cavity within the skull, and the spinal cord is housed in the spinal canal within the vertebrae.

What are the general functions of the autonomic nervous system quizlet?

What is the function of the autonomic nervous system? a control system that acts largely unconsciously and regulates bodily functions such as the heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal.