Motor neurons of the spinal cord are part of the central nervous system (CNS) and connect to muscles, glands and organs throughout the body. These neurons transmit impulses from the spinal cord to skeletal and smooth muscles (such as those in your stomach), and so directly control all of our muscle movements.

cerebellum

Alpha motor neurons

The cerebellum — also called the “little brain” because it looks like a small version of the cerebrum — is responsible for balance, movement, and coordination. The pons and the medulla, along with the midbrain, are often called the brainstem. The brainstem takes in, sends out, and coordinates the brain’s messages.

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.

The autonomic nervous system is made of two components, which work in opposition to one another: the sympathetic nervous system, responsible for the body’s “fight-or-flight” response to danger, and the parasympathetic nervous system, which calms the body back down.

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.

a. What is the main problem that your central nervous system will try to solve? Probably to try to escape out of this problem and not die in there Our nervous system will try to remember a past experience like this and will try to find a response and escape from all those enemies.

1. 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.

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.

The CNS is comprised of the brain, cerebellum and spinal cord. Remaining neurons, and associated cells, distributed throughout the body form the PNS. The nervous system has three broad functions: sensory input, information processing, and motor output.

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.

Important Nerves in the Human Body and What They Do You can think of nerves as your body’s electrical wiring — they transmit signals between your brain, spinal cord, and the rest of your body.

Nervous system diseases

• Alzheimer’s disease. Alzheimer’s disease affects brain function, memory and behaviour.
• Bell’s palsy.
• Cerebral palsy.
• Epilepsy.
• Motor neurone disease (MND)
• Multiple sclerosis (MS)
• Neurofibromatosis.
• Parkinson’s disease.

The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.

The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS).

The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2).

The nervous system is divided into the central nervous system and peripheral nervous system.

These nerves control the involuntary or partially voluntary activities of your body, including heart rate, blood pressure, digestion, and temperature regulation. Motor nerves. These nerves control your movements and actions by passing information from your brain and spinal cord to your muscles. Sensory nerves.

15.4B: Subdivisions of the Nervous System

• Central Nervous System.
• Gray Matter and White Matter.
• Peripheral Nervous System.
• Autonomic and Somatic Nervous Systems.
• Parasympathetic and Sympathetic Nervous Systems.

Divisions of the Nervous System

• Cranial nervous system.
• Peripheral nervous system.
• Autonomic nervous system.
• Central nervous system.

Tags related to this set

• Peripheral Nervous System Consists Of.
• Cranial And Spinal Nerves.
• Autonomic Nervous System Sympathetic.

Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

The best example of the peripheral nervous system is that it connects the central nervous system to the rest of the body. Explanation: The ‘peripheral nervous system’ connects the ‘central nervous system’ to the various organs of the human body and to the limbs and skin.

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.

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.

The peripheral nervous system is divided into two main parts: Autonomic nervous system (ANS): Controls involuntary bodily functions and regulates glands. Somatic nervous system (SNS): Controls muscle movement and relays information from ears, eyes and skin to the central nervous system.

The neurons of the peripheral nervous system do not make complex decisions about the information they carry. For example, if a mosquito lands on a person’s arm, sensory neurons in the skin send a message to the spinal cord and then the brain, where the message is understood, and a reaction formulated.

Nerves of the peripheral nervous system are classified based on the types of neurons they contain – sensory, motor or mixed nerves (if they contain both sensory and motor neurons), as well as the direction of information flow – towards or away from the brain.