Striped body and its functions

The human brain is a very complex organ, which consists of a variety of nerve cells and their processes. One of the structural parts of the brain can include a striped body.

Definition

The striatum of the brain is an anatomical structure of the terminal brain, which refers to the basal nuclei of the hemispheres of the human brain.

The body has received the name because on front and horizontal sections of a brain it has a kind of alternating strips of white and gray substances.

The earliest studies showed that the peak of the activity of the striatum was at the time when the person was 15 years old. But recent work shows that the actual activity of the body begins closer to 25 years, and hyperactivity falls on 30 years.

In addition, after carrying out a rather interesting study, the scientists found out that the brain reacts when pay does not cover the efforts that a person has put into work. So, if an employee understands that his colleague receives more for the same amount of work, then the motivation for long-term working capacity is reduced. Conversely, when you reassess work, the desire to work increases.

Structure

The striped body consists of:

• Hvostatogo kernels.
• Lenticular nucleus.
• Fences.

If we consider the body under a microscope, then it consists of large neurons with long tails that extend beyond the boundaries of the striopallidal system.

Parts of the caudate body are the head, body and tail. The head forms the lateral wall of the anterior horn of the lateral ventricle; The core body is stretched along the central part of the ventricle; The tail is located on the upper wall of the lower horn of the ventricle and ends at the level of the lateral geniculate body.

The rear wall of the head of the nucleus is located on the border with the thalamus, dividing their band of white matter.

The lenticular nucleus, as is clear from the name, resembles its shape in the form of lentils.

It is located sideways to the caudate nucleus and thalamus. If you cut the core in half, it has a wedge shape, the top of which is facing the middle, and the bottom is in the side.

And small interlayers of white matter divide the core into several parts:

1. Shell.
2. Lateral pale ball.
3. The medial pallid sphere.

The pale sphere is a species ancient formation (ancient body), which differs from other parts of the striatum both in macroscopic and histological forms.

The fence is located outside the lenticular nucleus. Outwardly it is a thin, to two millimeters, plate of gray matter. The middle of the plate is flat, and on the lateral edge there are small bulges of gray matter.

Main functions

The striatum of the brain is considered one of the main subcortical regulating and coordinating centers of the motor system.

Thanks to experiments, it is proved that the body contains vegetative coordinating centers that regulate heat generation, heat release, metabolism and vessel reactions.

The main functions of the striatum are:

• Regulation of muscle tone.
• Decreased muscle tone.
• Participation in the regulation of the work of internal organs.
• Participation in behavioral reactions.
• Participation in the formation of conditioned reflexes.

Damage to the striatum and the consequences

When the striped body ceases to function, the following violations are observed in a person:

• Athetosis. Banal alternating limb movements.
• Chorea. Wrong movements that are committed without any sequence or order, capturing the entire musculature of the body.
• Strengthening of unconditioned reflexes (defensive, indicative, etc.).
• Hyperkinesis. Significant strengthening of the auxiliary movements that accompany each major movement.
• Hypotonus. Disorder of muscle tone, its lowering.
• The appearance of Tourette's syndrome.
• The appearance of Parkinson's disease contributes to the death of the body's neurons, which is why the dentin is not produced, which is responsible for the motor system of the human body.
• The appearance of Huntington's disease.

In addition, the damage to the striatum and caudal core in particular:

• Completely or partially prevents the perception of pain, visual, auditory and other types of stimulation.
• Reduces or increases salivation.
• It hinders orientation in space.
• It breaks the memory.
• Slows down the growth of the body.
• Promotes the disappearance of conditioned reflexes for a long period. Human behavior can be inert and stagnant.