Quick Answer: What Are The Two Major Divisions Of The Nervous System?

What are the 5 main parts of the nervous system?

The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body.

Together, these organs are responsible for the control of the body and communication among its parts..

What are the major divisions of the nervous system what are their major functions quizlet?

Terms in this set (9)Sensory function. detect internal and external stimuli. … Integrative function. interpretation of sensory input.Motor function. … Central nervous system (CNS) … Peripheral nervous system (PNS) … Sensory (afferent) division (to CNS) … Motor (efferent) division (from CNS) … Somatic nervous system.More items…

What is CNS?

What is the central nervous system? The central nervous system (CNS) controls most functions of the body and mind. It consists of two parts: the brain and the spinal cord. The brain is the center of our thoughts, the interpreter of our external environment, and the origin of control over body movement.

What are the three parts of each neuron called?

A useful analogy is to think of a neuron as a tree. A neuron has three main parts: dendrites, an axon, and a cell body or soma (see image below), which can be represented as the branches, roots and trunk of a tree, respectively. A dendrite (tree branch) is where a neuron receives input from other cells.

What is the main function of nervous system?

At a more integrative level, the primary function of the nervous system is to control and communicate information throughout the body. It does this by extracting information from the environment using sensory receptors. This sensory input is sent to the central nervous system, which determines an appropriate response.

What are the two major divisions of the nervous system and their functions?

There are two major divisions of the nervous system: the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is made up of the brain, the spinal cord, and the retina and controls essentially all the functions that keep you alive and allow you to experience life.

How is nervous system classified?

The nervous system of vertebrates (including humans) is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The (CNS) is the major division, and consists of the brain and the spinal cord. The spinal canal contains the spinal cord, while the cranial cavity contains the brain.

What are the four functions of the nervous system?

The four main functions of the nervous system are:Control of body’s internal environment to maintain ‘homeostasis’ An example of this is the regulation of body temperature. … Programming of spinal cord reflexes. An example of this is the stretch reflex. … Memory and learning. … Voluntary control of movement.

What is the basic structure and function of the nervous system?

The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body. It is essentially the body’s electrical wiring.

What are the different parts of the peripheral nervous system?

The peripheral nervous system refers to parts of the nervous system outside the brain and spinal cord. It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions.

What are the 2 divisions of nervous system?

Let’s start with a simple division: The nervous system is divided into the central nervous system and peripheral nervous system.

What are the major division 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 4 parts of the peripheral nervous system?

Contents1.1 Somatic nervous system. 1.1.1 Cervical spinal nerves (C1–C4) 1.1.2 Brachial plexus (C5–T1) 1.1.3 Lumbosacral plexus (L1–Co1)1.2 Autonomic nervous system. 1.2.1 Sympathetic nervous system. 1.2.2 Parasympathetic nervous system.

What is the order of the nervous system?

The nervous system has two great divisions: the central nervous system (CNS), which consists of the brain and the spinal cord, and the peripheral nervous system (PNS), which consists of nerves and small concentrations of gray matter called ganglia.

How many types of nervous system are there?

Your nervous system is involved in everything your body does, from regulating your breathing to controlling your muscles to sensing heat and cold. There are three types of nerves in your body: autonomic nerves, motor nerves, and sensory nerves.

What is an example of the peripheral nervous system?

Examples of the Peripheral Nervous System Response When a bright light is suddenly turned on, sensory receptors in the eye communicate this to the CNS. The PNS mediates the response to this stimulus. … Your body may even move the skeletal muscles of the arm to shield the eye.

What organs are in the peripheral nervous system?

The organs of the peripheral nervous system are the nerves and ganglia. Nerves are bundles of nerve fibers, much like muscles are bundles of muscle fibers. Cranial nerves and spinal nerves extend from the CNS to peripheral organs such as muscles and glands.

What are the two major 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 3 major organs of the nervous system?

The nervous system in a human is made of the brain, spinal cord, sensory organs and all the neurons that serve as communication channels between the various organs of the body.

Is eye part of nervous system?

The Central Nervous System is the integration and command center of the body. It consists of the brain, spinal cord and the retinas of the eyes. The Peripheral Nervous System consists of sensory neurons, ganglia (clusters of neurons) and nerves that connect the central nervous system to arms, hands, legs and feet.

How many nervous systems are there?

The nervous system has two parts, called the central nervous system and the peripheral nervous system due to their location in the body. The central nervous system (CNS) includes the nerves in the brain and spinal cord.