What are the two main components of the nervous system quizlet? The Nervous System is divided into two parts. What are they? 1) The CNS (Central Nervous System) and 2) The PNS (Peripheral Nervous System.
What are 5 facts about the nervous system?
#35 The autonomic nervous system is divided into 3 branches:
- the enteric nervous system;
- the parasympathetic system;
- the sympathetic system.
What are the main organs of the nervous system?
- The 12 Cranial Nerves exit directly from the Brain
- The Spinal Cord is the part of the CNS that then forms and distributes the “Peripheral Nerves.”
- The Autonomic Nervous System “Preganglionic nerves” originate directly from the Brain Stem connecting to “ganglions” outside the CNS and from there the “postganglionic” nerves connect to organs. ...
Do you know all the organs of the nervous system?
You can divide up all the nerves in the body into roughly two parts: the central nervous system and the peripheral nervous system . The central nervous system contains two organs—the brain and the spinal cord. It has all four types of nerve cells and is the only place you can find inter-neurons.
What do the different parts of the nervous system do?
What Do the Different Parts of The Nervous System Do?
- Central Nervous System. The spinal cord directs signals from the brain to the body and is capable of controlling simple reflexes without transmitting information from the brain.
- Peripheral Nervous System. ...
- See a Neurologist. ...
What are the 2 parts in the nervous system?
What are the parts of the nervous system?The central nervous system is made up of the brain and spinal cord.The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
What are the parts of the nervous system quizlet?
Terms in this set (35)central nervous system. -Receives, processes, interprets, and stores incoming sensory information. ... Brain. ... Spinal cord. ... Peripheral nervous system. ... Somatic nervous system. ... Autonomic nervous system. ... Sympathetic nervous system. ... Parasympathetic nervous system.More items...
What are the parts of the nervous system and its function?
The Brain and Spinal Cord Are the Central Nervous System. Nerves and Sensory Organs Make Up the Peripheral Nervous System. Together, the central nervous system (CNS) and the peripheral nervous systems (PNS) transmit and process sensory information and coordinate bodily functions.
What are the functions of major parts of the nervous system quizlet?
The primary function of the nervous system is to collect a multitude of sensory information; process, interpret, and integrate that information; and initiate appropriate responses throughout the body.
What is the main function of the nervous system?
The nervous system helps all the parts of the body to communicate with each other. It also reacts to changes both outside and inside the body. The nervous system uses both electrical and chemical means to send and receive messages.
Is parasympathetic part of the peripheral nervous system?
The peripheral nervous system contains both the autonomic and sensory-somatic nervous systems. The autonomic nervous system provides unconscious control over visceral functions and has two divisions: the sympathetic and parasympathetic nervous systems.
What are the functions of the endocrine system quizlet?
The endocrine system's main function is to regulate short-term and long-term activities by sending hormones throughout the body. The relationship between homeostasis and the endocrine system is that the glands in the body produce specific hormones that help the body maintain a balance.
What are the roles of the brain and spinal cord in the central nervous system?
The brain is what controls all the body's functions. The spinal cord runs from the brain down through the back. It contains threadlike nerves that branch out to every organ and body part. This network of nerves relays messages back and forth from the brain to different parts of the body.
How many parts does the nervous system have?
The Nervous System is divided into two parts. What are they?
What are the two systems of the autonomic nervous system?
The Autonomic system cane divided into the Sympathetic and Parasympathetic Ner vous systems.
What is the CNS divided into?
The CNS is divided into the brain and spinal cord.
Which part of the brain exits the spinal cord?
Neurons leaving the spinal cord exit through the ventral horn.
Which nervous system is used for rest and digest?
The parasympathetic nervous system is used for 'REST AND DIGEST'.
Where are sympathetic cells located?
Sympathetic cell bodies are located in the thoracic and lumbar spinal cords and they connect to a paravertebral ganglion chain distant from the target organ.
Which part of the cell carry information away from the cell body?
Axons carry information away from the cell body, dendrites carry it towards the cell body.
What is the central nervous system made of?
The central nervous system is made up of the brain and spinal cord.
What is the basic unit of the nervous system?
The basic unit of the nervous system is a nerve cell, or neuron. The human brain contains about 100 billion neurons. A neuron has a cell body, which includes the cell nucleus, and special extensions called axons (pronounced AK-sonz) and dendrites (pronounced DEN-drahytz ). Bundles of axons, called nerves, are found throughout the body.
What is the name of the cell that sends electrical signals to neighboring neurons?
The nervous system also includes non-neuron cells, called glia (pronounced GLEE-uh ). Glia perform many important functions that keep the nervous system working properly.
What are the parts of the brain that communicate?
The brain is made up of many networks of communicating neurons and glia. These networks allow different parts of the brain to “talk” to each other and work together to control body functions, emotions, thinking, behavior, and other activities. 1, 2, 3.
What are the functions of neurons?
Sensory neurons detect light, sound, odor, taste, pressure, and heat and send messages about those things to the brain. Other parts of the nervous system control involuntary processes. These include keeping a regular heartbeat, releasing hormones like adrenaline, opening the pupil in response to light, and regulating the digestive system.
What is the name of the chemical messengers released by the axon?
The axon then releases the chemical signal with chemical messengers called neurotransmitters (pronounced noor-oh-TRANS-mit-erz) into the synapse (pronounced SIN-aps )—the space between the end of an axon and the tip of a dendrite from another neuron.
