Health and Fitness · December 21, 2019

Nervous System and its function

Whatever we think, see, or do is automatically monitored by our brain. Since the world is too big to view due to uncertainties requires execution of strategic plans which are necessary to survive in the future. No milestone remains unturned when the nervous system functions with constant stability. This further elucidates a point when our thoughts traverse through the ocean of negative thoughts which leads to the propagation of depression. This brain-related disease gets hidden by its victims as they adorn a mask that covers its symptoms though people around them easily comprehend their problem.

An intricate assortment of nerves and specialized cells is termed as neurons that enable transmission of neurons to different parts of the body.

Bifurcated in two divisions such as the central nervous system and the peripheral nervous system, the human nervous system functioning is like that of the body’s electrical wiring. The formation of a central system happens when the brain, spinal cord, and nerves are linked together. Whereas in the peripheral nervous system, the combination of sensory neurons, ganglia (cluster of neurons) and nerves serves adequate connection among them as well to the central nervous system.

Brain

Forebrain, midbrain, and hindbrain are the three-main sections through which brain functions.

With the largest and most complex part of the brain being called the Forebrain, it comprises of the cerebrum which is an area fusing folds and grooves which is usually seen in brains and in some other areas too.

The intellectual abilities, memorization power, emotional stability, and speech are stored together as information that is inscribed in the cerebrum. Specific areas of the cerebrum called lobes are responsible for processing this information. Lobes are classified into four categories like frontal, parietal, temporal, and occipital. The right and left halve of the cerebrum are called hemispheres which are connected in the mid-section of a band of nerve fibers that allows them to communicate.   Each of these halves carries different functions like the left side support logical, analytical and objective side.

Whereas it’s other right half is supposed to infuse more intuitive, creative and subjective thoughts.

Ever wondered from where do the five senses come into the brain? This sense simply communicate through cortex which presides as the outer layer of the cerebrum and is often referred to as “Grey Matter”

Three inner parts such as thalamus, hypothalamus and pituitary gland form the part of the forebrain. The first part of the forebrain which is thalamus is known for communicating a message from the sensory organs like the eyes, ears, nose, and fingers directly to the cortex.

Automatic simulation of pulse, thirst, appetite, sleep patterns, and any other process is controlled by the sub-part of the forebrain called hypothalamus. This gland further controls the pituitary gland which is responsible for control growth, metabolism, water and mineral balance, sexual maturity and responses to stress.

Midbrain

Midbrain functions as the chief-controller for transmission of messages that go in and out of the brain to the spinal cord.

Hindbrain

Placed at the ended back of the cerebrum, it comprises of the cerebellum, pons, and medulla. Since the cerebellum is often referred to as “tiny-brain” as it is the smaller version of the cerebrum which is responsible for balance, movement, and coordination. The linkage of pons, medulla, and midbrain is called the brainstem. This brainstem communicates brain messages to other portions of the body. Functions of the body like breathing, heart-rate, blood-pressure, swallowing, digestion and blinking are also coordinated through this organ.

 Functions of the nervous system

Peripheral Nervous System is bifurcated into three different subsystems called the somatic, autonomic and enteric nervous. The facilitation of voluntary movement is supported by somatic nerves. The second sub-nervous system called autonomic is further fragmented into sympathetic and parasympathetic nervous systems. The mobilization of energy is generated by the activation of the sympathetic nervous system especially organisms are in a relaxed state.  The third sub-nervous system controls the gastrointestinal system. The functioning of autonomic and enteric nervous systems occurs involuntarily. Exiting of nerves from cranium is called cranial nerves while the spinal cord is called spinal nerves.

Axons are those neurons that assist transmission of neurons and spark chemicals called neurotransmitters which are further released at junctions called synapses.

The role of the synapse is to direct a command to the cell which in turn supports the entire communication process and within a fraction of millisecond this procedure occurs. Determination of an individual’s perception is formed by a connection created between neural pathways, neural circuits, and larger circuits. Sustainable metabolic and structural support is sustained with glial cells.

A healthy body demands positive thoughts

Absence of hope in somebody’s life envisages the room for depression and at the same moment, it is displeasing to witness that consumption of foods high in anti-inflammatory compounds unleashes deficits in the functioning of the brain. As neurologists prescribed the consumption of foods rich in nutrients like concord grapes are said to be more efficacious.