The brain and spinal cord comprise zerbst,how to keep hair healthy when blonde,starlito thinking of you download link,successful life skills video - Test Out

Author: admin, 11.12.2013. Category: Understanding The Law Of Attraction

Spinal Cord – a bundle of nerves going through the spinal column from the bottom of the skull down to the mid-back. Some nerves bring information from the body to the brain and others send back instructions from the brain to the body.
The information going to the brain is sensory – touch, pain, temperature, pressure, position.
Cauda Equina – the end part of the spinal cord that starts in the mid back and sends nerve fibers to the lower body. Brain Stem controls things we do without thinking, like our heartbeat, breathing, and swallowing. There are three layers of meninges: Dura mater (closest to the bone), Arachnoid loosely around the brain, Pia mater is closely attached to the brain and spinal cord surface. It is responsible for the impulses that result in neural communication to and fro the brain, and also with the entire human body.
If it is viewed posteriorly, the two enlargements in the spinal cord could be seen- particularly the cervical enlargement between the second thoracic vertebrate and the third cervical vertebrate. There are also three meninges protecting the brain, the spinal cord and the cerebrospinal fluid. On the other hand, the columns of white matter in the spinal cord has tracts which ascend and descend for the travel of the nerve impulses, making it possible to deliver messages to the body structure or to the brain. A rear view of the skull reveals the brain and the cervical spinal cord, which function together as the central nervous system. It is a clear, water-like fluid, also called spinal fluid, found between the arachnoid and pia mater.
Peripheral sensory receptors in the entire body is sent back to the brain for interpretation.
Pathways of the dedicated nerves directly determine the reflex from the spinal cord, making it possible for the voluntary actions to receive information without taking so much time and distance.


Because of its posteroventral shape which is slightly flattened, it would look like an ovular cross section.
Each of these has a pair of spinal nerves which is pushed outward from the spinal cord through the intervertebral foramina. In the lumbar and thoracic areas, the lateral horns could be seen, however, it will not be visible to other regions. In the spinal cord, there are 6 columns of white matter named the funiculli, and they are named according to their position.
The remarkable apparatus uses motor neurons to control the body's many muscles and enables humans to perform myriad physical activities. The senses (taste, smell, sight, hearing, touch), emotions, thoughts, and movement are controlled by the brain. Its length is extended to the space of the first and second lumbar vertebrae, but does not extend until the vertebral column. The tracts of white matter that are situated peripherally are the ones that send a variety of impulses to and fro the brain. The tracts which are descending then send motor impulses to the glands or the muscles to be able to respond to the stimuli. There are also 2 two distinct channels that slightly separate the spinal cord into two: the general left and right side. Most of the parts in the spinal cord are made up with gray matter, and is also encompassed by white matter. These horns are united across the middle part of the spinal cord by a gray matter known to be the gray commissure. Fibers in these tracts remain on the same side or cross over the spinal cord (and even in medulla oblongata). A variety of synaptic connections cause the cerebral cortex, the cerebellum, and the basic nuclei to produce motion indirectly.


The right side of the brain controls the left side of the body and the left side of the brain controls the right side of the body. The length of the spinal cord is similar to the thorax and is connected to the brain through the foramen magnum of the skull. These 2 distinct channels are called the posterior median sulcus and the anterior median fissure. The gray matter, which makes up the majority of the spinal cord is made up of neuroglia, unmyelinated association neurons and nerve cell bodies. In the same manner, the posterior funiculli are also placed on the gray matter’s posterior horns. The white matter on the other hand is composed of myelinated fibers that brings the motor and sensory neurons.
There is about 140 cc (about ½ can of soda) of spinal fluid that surrounds the brain and spine. The brain and spinal cord are bathed and cushioned by this spinal fluid, which flows and circulates around the brain and spine.
The fibers for these tracts are created by the frontal lobe, particularly the precentral gyrus.
Around 85 percent of these undergo decussation, and the remaining percentage makes up the anterior corticospinal tracts.



Power of positive thinking tips youtube
Make a book microsoft word
Making a will in scotland online


Comments to «The brain and spinal cord comprise zerbst»

  1. Virus writes:
    Your less-privileged part from the most important thing that angry, you.
  2. 54 writes:
    For one, but not for white.