Spinal Cord

Spinal Cord - part of the central nervous system contained in the spinal canal; consists of nerve cells and bundles of nerve fibers and passes into the brain. The spinal cord is formed by gray matter located in the center (in which symmetrical anterior and posterior columns are distinguished, and in the area from the I thoracic to II lumbar segments and lateral columns), surrounded on all sides by white matter. It is surrounded by three meninges and runs from the medulla oblongata located inside the skull to the level of the second lumbar vertebra, where it ends in the conus medullaris. 31 pairs of spinal nerves arise from the spinal cord.

Spinal Cord: functions and structure

The Spinal Cord is an important part of the central nervous system, which is located in the spinal canal. It consists of nerve cells and bundles of nerve fibers, and passes into the brain. The spinal cord provides communication between the peripheral nervous system and the brain, and also carries out many important functions related to information processing and motor control.

Structure of the spinal cord

The spinal cord consists of gray and white matter. Gray matter is located in the center of the brain and contains nerve cells that are involved in information processing. The gray matter is divided into anterior and posterior columns, and in the area from the I thoracic to II lumbar segments and lateral columns. White matter surrounds the gray matter and contains nerve fibers that carry information between different parts of the nervous system.

The spinal cord is surrounded by three meninges called meninges. The inner shell - piyama - is adjacent to the surface of the brain, the next shell - archanoid - is located under the piyama, and the outer shell - dural - surrounds the spinal brain from the outside. The spinal cord runs from the medulla oblongata, which is located inside the skull, to the level of the second lumbar vertebra, where it ends in the conus medullaris.

Functions of the spinal cord

The main function of the spinal cord is to provide communication between the peripheral nervous system and the brain. It acts as a conductor of information, transferring information from the senses and muscles to the brain and back. The spinal cord also regulates reflexive movements that occur without conscious participation, such as when hitting the knee with a hammer.

From the spinal brain there are 31 pairs of spinal nerves that exit the spinal canal through the intervertebral foramina. They connect the spinal cord to various parts of the body and control muscle movement, sensation and internal organs.

Conclusion

The spinal cord is an important part of the central nervous system, which provides communication between the peripheral nervous system and the brain. It plays the role of a conductor of information and controls reflex movements. Understanding the structure and function of the spinal cord is important for understanding the functioning of the nervous system as a whole and can help in the treatment of many diseases associated with the nervous system. For example, damage to the spinal cord can lead to disturbances in movement, sensation, and functioning of internal organs. Therefore, understanding the functioning of this important part of the nervous system is an important step in the development of new methods for diagnosing and treating nervous diseases.

The brain is the central part of the human nervous system. This is the brain section of the central nervous system. The surface of the spinal cord and brain has grooves and grooves on which folds of gray matter are located. The white matter between them ensures the transmission of impulses from the body to the head and from the head to the body through the spinal cord and brain. The spinal trunk is connected to the brain by the processes of their nerve roots. The notebook has a brain body, a brain roof, a mediator and a ganglion with the dorsal cerebellum. The body of the brain is a large drop of whitish iron, filling one third of the temporal fossa. Between the ends of the white matter there are anterior and posterior thickened parallel long stems, differently separated by a lateral zigzag duct. The bodies perform functions that receive sensory, motor, associative and coordination information, other discomfort between these limbs and the spinocerebellar tracts is transmitted for the sake of the spinal patella canal

The brain is a department of the central part of the central part of the nervous system of the body, controls the vital functions of a person, conscious movements that control our actions. The brain is the final part of the central nervous system. It is divided into the brain and spinal cord, which together form the central nervous system. The section protects the head from the influence of the physical environment. The medulla oblongata (brain) is formed during the formation of the brain after the division of the terminal mouth. Has 2 hemispheres. People have three of them. The anterior hemisphere is larger and has an opening for the pons. The epiphysis, which continues beyond the foramen magnum, is called the posterior “hemisphere.” It is less noticeable and has an uneven structure.