What division of the nervous system contains the brain and the spinal cord?
What division of the nervous system contains the brain and the spinal cord?
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.
Which part of the nervous system connects the brain and spinal cord to all parts of the body?
The brain stem connects the brain with the spinal cord. It controls hunger and thirst and some of the most basic body functions, such as body temperature, blood pressure, and breathing.
Why are the brain and spinal cord called the central nervous system?
The central nervous system consists of the brain and spinal cord. It is referred to as “central” because it combines information from the entire body and coordinates activity across the whole organism.
What is the role of spinal cord in nervous system?
Carrying signals from the brain: The spinal cord receives signals from the brain that control movement and autonomic functions. Carrying information to the brain: The spinal cord nerves also transmit messages to the brain from the body, such as sensations of touch, pressure, and pain.
What are the four major components of the central nervous system?
Central Nervous System (CNS) Definition
- The central nervous system consists of the brain and spinal cord.
- The brain plays a central role in the control of most bodily functions, including awareness, movements, sensations, thoughts, speech, and memory.
What are the 9 parts of the nervous system?
Nervous System Anatomy
- Nervous Tissue. The majority of the nervous system is tissue made up of two classes of cells: neurons and neuroglia.
- Brain.
- Spinal Cord.
- Nerves.
- Meninges.
- Cerebrospinal Fluid.
- Sense Organs.
- Functions of the Nervous System.
What are the two divisions of the nervous system?
There are two structural divisions of the nervous system. The central nervous system or CNS ( brain and spinal cord) and the peripheral nervous system or PNS (all neural tissue outside the CNS). Functionally, the peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system.
Where is the central nervous system located in the body?
The Central Nervous System. The CNS consists of the brain and spinal cord, which are located in the dorsal body cavity. The brain is surrounded by the cranium, and the spinal cord is protected by the vertebrae. The brain is continuous with the spinal cord at the foramen magnum.
How is the somatic nervous system related to the nervous system?
Somatic nervous system. This system consists of nerves that connect the brain and spinal cord with muscles controlled by conscious effort (voluntary or skeletal muscles) and with sensory receptors in the skin. Sensory receptors are specialized endings of nerve fibers that detect information in and around the body.
How many pairs of nerves are in the spinal cord?
There are 31 pairs of them, located at intervals along the length of the spinal cord (see Overview of Spinal Cord Disorders ). Several cranial nerves and most spinal nerves are involved in both the somatic and autonomic parts of the peripheral nervous system.
What division of the nervous system contains the brain and the spinal cord? 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. Which part of…