What are the 2 main divisions of the nervous system quizlet?

What are the 2 main divisions of the nervous system quizlet?

The structures of the nervous system are described in terms of 2 principal divisions-the central nervous system (CNS) and the peripheral nervous system (PNS).

What are the 2 major divisions of the peripheral nervous system PNS?

The peripheral nervous system itself is divided into two parts: the somatic nervous system and the autonomic nervous system. Each of these components plays a critical role in how the peripheral nervous system operates.

Which are the two major structural divisions of the CNS quizlet?

Brain and spinal cord. You just studied 8 terms!

What happens at the space between two neurons?

The synapse is a very small space between two neurons and is an important site where communication between neurons occurs. Once neurotransmitters are released into the synapse, they travel across the small space and bind with corresponding receptors on the dendrite of an adjacent neuron.

What are the four main divisions of the peripheral nervous system?

The peripheral nervous system is subdivided into nerves, the autonomic system, and the somatic system. The autonomic nervous system is further subdivided into the parasympathetic and sympathetic nervous systems.

What are the functions of the two divisions of the peripheral nervous system?

The sensory division of the PNS carries sensory information from the body to the central nervous system. The motor division of the PNS carries nerve impulses from the central nervous system to muscles and glands throughout the body. The nerve impulses stimulate muscles to contract and glands to secrete hormones.

What are the structural divisions of the nervous system?

Structural Divisions of the Nervous System. The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2).

What are the two divisions of the autonomic nervous system?

The autonomic nervous system regulates many of the internal organs through a balance of two aspects, or divisions. In addition to the endocrine system, the autonomic nervous system is instrumental in homeostatic mechanisms in the body. The two divisions of the autonomic nervous system are the sympathetic division and the parasympathetic division.

How is the nervous system composed of many different functions?

Within the brain, many different and separate regions are responsible for many different and separate functions. It is as if the nervous system is composed of many organs that all look similar and can only be differentiated using tools such as the microscope or electrophysiology.

Where is the central nervous system located in the body?

The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2). The brain is contained within the cranial cavity of the skull, and the spinal cord is contained within the vertebral cavity of the vertebral column. It is a bit of an oversimplification to say …

What two systems is the nervous system divided into?

The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS). The brain and spinal cord are the organs of the central nervous system.

Which are the two main branches of the human nervous system?

The nervous system is broken down into two main divisions: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system includes the brain and the spinal chord. The peripheral nervous system includes all of the nerves outside of the spine and brain.

Is the nervous system divided into three major parts?

The nervous system can be broken down into two major parts-the central nervous system and the peripheral nervous system . The central nervous system, the main data center of the body, includes the brain and spinal cord.

What two parts is the automatic nervous system divided into?

Your autonomic nervous system lies almost entirely outside of the central nervous system and involves two main parts: the craniosacral part (parasympathetic), and the thoracolumbar part (sympathetic). These are sometimes thought of as being opposite to each other, ultimately striking a balance within the body.