Function and Diseases of the Nervous System——Maintaining good health

Disease and function of the nervous system

Sensing and acting

The sensory neurons gather input information such as temperature, body position, pain, light, hunger itch and anything that affects the five senses. This information is then transmitted through the nerves to the brain where the information is interpreted. This processing means interpreting what to do with the information. When the brain decides what action should be taken a signal is sent through the nerves to generate action such as contraction of a muscle when your hand touches a hot surface.

Control of all bodily processes

The nervous system not only control sensing and acting, but it also controls all processes in the body. It stimulates the involuntary movement of muscles such as the beating of the heart and controls the bowels. It can stimulate tissues to produce hormones and enzymes

Movement and emotion

The nervous system allows you to move your body through voluntary control of the muscles. The brain which is part of the nervous system is of course extremely important in generating emotions, allowing you to enjoy, love, be angry and sad. The brain enables learning, memorizing, thinking, dreaming, control of behavior and many more.

Peripheral nervous system

The cranial nerves consist of 12 pairs of nerves that pass through small holes at the base of the skull. These nerves carry information and connecting the brain to different parts of the body.

Olfactory Nerve

The olfactory nerve is the shortest pair of cranial nerve and it is the sensory that transmits olfactory (smell) from the nose to the brain.

Optic Nerve

The optic pair of nerves is responsible for conducting visual stimuli from the eye to the brain. It takes the information of the photoreceptors( a receptor that is sensitive to light) to the brain, where later it will be integrated and interpreted. It emerges in the diencephalon.(function)

Oculomotor Nerve

This pair of nerves controls the movement of the eyes and is also responsible for the size of the pupil and it originates in the midbrain.

Trochlear Nerve

The Trochlear (The nerve that controls the superior oblique muscle of the eye, one of the muscles that move the eye (extraocular muscles). This nerve has a motor and somatic functions that are connected to the superior oblique muscle of the eye, being able to make the eyeballs move and rotate. Its nucleus also originates in the mesencephalon (midbrain) as well as the oculomotor nerve.

Trigeminal Nerve

This pair of nerves is the largest of the cranial nerves and its function is to carry sensitive information to the face, to convey information for the chewing process. The sensory fibers convey sensations of touch, it control (sensitive, sensory and motor), The sensory fibers convey sensations of touch, pain, and temperature from the front of the head including the mouth and also from the meninges.( The three membranes that cover the brain and spinal cord)

What is the nervous system?

Abducent

It is also known as the external ocular motor cranial nerves It is a cranial motor pair, responsible for transmitting the motor stimuli to the external rectus muscle of the eye and therefore allowing the eye to move to the opposite side from where we have the nose.

Facial or Intermediate

This pair of cranial nerves consist of several nerve fibers that perform different functions, it allows the facial muscles to create facial expressions and also send signals to the salivary and lachrymal (tear) glands., it also collects taste information through the tongue.

vestibulocochlear Nerve

This sensory cranial nerve is known as the auditory and vestibular nerve, forming the vestibulocochlear. Which is responsible for balance and orientation in space and auditory function.

Glossopharyngeal Nerve

This nerve collects information from the taste buds (tongue) and sensory information from the pharynx. It gives orders to the salivary gland and various neck muscles that help with swallowing. This nerve also monitors blood pressure.

Vagus Nerve

This nerve is also known as pneumogastric. It comes from the medulla oblongata( the continuation of the spinal cord within the skull, forming the lowest part of the brain stem and containing control centers for the heart and lungs).and supplies nerves to the pharynx, esophagus, larynx, trachea, bronchi, heart, stomach and liver., it controls the action of swallowing and also in sending and transmitting signals to our autonomous system, to help and regulate activation and control stress levels.

Accessory Nerve

This nerve is called the spinal nerve. It is a motor nerve. It governs movements of the head and shoulders by supplying the sternocleidomastoid ( neck muscle) and trapezius muscles in the (anterior and posterior) regions of the neck(used to tilt and turn the head and neck, shrug, steady the shoulders, and twist the arms). The spinal nerve also allows us to throw our heads back.

Hypoglossal

This pair of nerves is a motor nerve and is involved in swallowing and speech.

The nervous system organizes, explains, and directs interactions between you and the world around you it is a complex, highly specialized network it affects every aspect of our bodily functions and as you can imagine there is also a great amount of disease that can affect this complex system I will list them and then we will look at the most common ones.

Parkinson disease

Parkinson’s disease is not curable but if caught early medication can be given that can slow down the damage of the cells. Parkinson disease is a progressive disease that affects movement, speech and also causes tremors, especially in the hands.

People may also have stiffness in their limbs and joints and because of this, they move slower than usual. The muscles of the affected person also become much weaker and this may cause their posture may assume a stooping position.

The symptoms of Parkinson’s disease can be managed by medications and therapy.

Multiple sclerosis

At the moment there is no cure for multiple sclerosis but research is ongoing and hopefully, there will be a cure found soon.  Multiple sclerosis is often a disabling disease of the central nervous system There are many symptoms associated with ms they range from numbness and tingling to blindness and paralysis.

The progress, severity, and specific symptoms of MS in any one person cannot as yet be predicted, but advances in research and treatment are continuing.

The typical symptoms of MS

The severity of the disease cannot be predicted and varies from person to person one person may have a vision problem and another may have attention and memory issues. At times some symptoms could disappear completely and the person regains lost functions and in another case, the person could have partial or complete paralysis. MS usually affects persons between the ages of 20-50 and affects women more than men at a 2-1 average.

What causes these symptoms?

Ms occurs when the nerve fibers become damaged due to inflammation and break down of the protective insulation surrounding the nerve fibers of the CNS. The fibers are In a whitish insulating sheath which is made up of a mixture of proteins and phospholipids forming around many nerve fibers this sheath is called Myelin, The nerve fibers themselves are also damaged. and the Myelin is destroyed and replaced by scars of hardened patches of tissue. these harden lesions are called plaques and appear in many places within the central nervous system.

The average lifespan of an MS patient

A person with MS may live an average of about seven years less than the general population. however disease complications or other medical conditions like heart condition and stroke which can contribute to life expectancy being shortened. With care and attention to overall health and wellness the reduction of these risk will be lessened There are rare cases of MS that progress rapidly from disease onset and can be fatal

Some information for this post is from the National MS Society

ALS amyotrophic lateral sclerosis

ALS, or amyotrophic lateral sclerosis, is a progressive disease that affects nerve cells in the brain and the spinal cord the word amyotrophic comes from the Greek word which means no muscle nourishment or wastes away. This lack of nourishment to the nerve cells that signal and control the muscles causes the area to degenerates and this leads to scarring or hardening (“sclerosis”) in the region

The eventual loss of the motor neurons due to a progressive degeneration in ALS eventually leads to their death. When the motor neurons die, the brain no longer has the ability to initiate and control muscle movement and any voluntary muscle action is progressively affected, people may lose the ability to speak, eat, move and breathe.

The motor nerves that are affected when you have ALS is the motor neurons that provide voluntary movements and muscle control.

There is no cure or treatments that stop or reverse the effects of ALS and persons usually die 3 ½ years after being diagnosed

Some Information for this post is from the ALS Association.

Here is a link for some easy exercise and stretches for us boomers.

Thank you for reading this post should you have a question or a comment please leave it in the space provided at the end of this post, and please remember to like and share thank you.

http://healthybeautiful.info/health/chair-exercises-help-get-flatter-stomach/

NOTE:  This post includes affiliate links, which, if clicked on and a product purchased, I get a small commission (with no increase in cost to you).

Wellness Tips For Seniors——Maintaining Good Health

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Tips for healthy living for seniors
Wellness tips for seniors

WellnessTips For Seniors

Taking care of the health needs that we seniors need to be concerned about can be an overwhelming task.

In this post, we will be looking at some things that we need to be on top of to be healthy and to stay healthy

It is said that people who had good healthy habits when they were younger tend to become healthy seniors, but it is never too late. To practice good healthy habits

Good health habits can make a difference even to seniors who are prone to illness or have not made their health a priority in the past.

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The Liver And Its Functions (Maintaining Good Health)

the functionsm of the liver
The liver and its functions

The Liver And Its Functions

The liver is a very vital part of our body, we cannot survive without it, in today’s post, I will be looking at the liver and its functions.

What Is The Liver 

The liver is a very important organ in the body, it weighs about 3 lbs reddish-brown in color and has a rubbery feel to the touch, it sits on the right side of the belly protected by the rib cage.

The liver has two sections refer to as the right and left lobes, The gallbladder, and parts of the pancreas and intestines are right under the liver

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Musculoskeletal Disease in seniors. (Bone Density

Bone density disease in seniors
Musculoskeletal Disease in seniors. (Bone Density)

Musculoskeletal Disease in seniors. (Bone Density)

In this post, I will be looking at bone density one of the Musculosketial diseases that can affect us.

Bone is made mostly of collagen, a protein that is woven into a flexible framework.

Bone also contains calcium phosphate and calcium carbonate, minerals that add strength and harden the framework.

The combination of calcium and collagen gives the bone its strength and flexibility.

The flexibility (or ability to withstand stress) of the bone protects it from breaking.

Bone is strong because of calcium, but bone also acts as a storehouse for calcium.

In fact, more than 99% of the body’s calcium is contained in the bones and teeth. The remaining 1% is in the blood.

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Diabetic Related diseases

diabetic related sisease
Diabetic retinopathy is a diabetic-related disease

Diabetic related diseases

I will be looking at diseases that are diabetic related, it is said that no one dies from diabetes. But it is the effect that diabetes has on the body that is dangerous and will cause death.

Diabetes is linked to a host of other health problems. But if care is taken and the diabetes is and you can control your diabetes, then your risk of developing those complications and secondary conditions goes down,” says Karen McDermaid, a diabetes educator in Moosomin, Saskatchewan. These five conditions are the big ones to look out for if you’re prediabetic or have diabetes

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What Are Lymphocytes And Why It Is Important To Us

Lymphocyte are cells that is very important to us
What Are Lymphocytes And Why It Is Important To Us

According to Healthline medical online magazine Lymphocytes are one of several types of white blood cells. Each type of white blood cell has a specific function, and they all work together to fight illness and disease.

These white blood cells are an important part of the immune system. They help your body fight antigens which are bacteria, viruses, and other toxins that make you sick. If your doctor says you have a weakened immune system, that means there aren’t enough white blood cells in your bloodstream.

Lymphocytes and how they work

Cells are produced constantly by the bone marrow and these cells l become lymphocytes.

Some of these lymphocytes will enter your bloodstream, but most will move through your lymphatic system.

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The Cause And Symptoms Of COPD.—–Maintaining Good Health

COPD The Cause And Symptoms.

There are many diseases that can affect us as we age, we have looked at some of them already you can check them out at my website healthandwellnessforboomers.com.

In today’s, blog post we are looking at COPD. (Chronic obstructive pulmonary disease)

Wikipedia definition is (Chronic obstructive pulmonary disease is a type of obstructive lung disease characterized by long-term breathing problems and poor airflow.

The main symptoms include shortness of breath and cough with sputum production. COPD is a progressive disease, meaning it typically worsens over time. Wikipedia

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