Medulla where is the line

The types of information carried by these spinal tracts include:. Your motor neurons cross from the left side of your brain to the right side of your spine in your medulla. If you damage the left side of your medulla, it will lead to loss of motor function to the right side of your body.

Similarly, if the right side of the medulla is damaged, it will affect the left side of your body. Damage to your medulla oblongata can lead to:.

Various types of problems can develop if your medulla becomes damaged because of a stroke , brain degeneration, or a sudden head injury. The major symptoms are:. Wallenberg syndrome is also known as lateral medullary syndrome. It frequently results from a stroke near the medulla. Common symptoms of Wallenberg syndrome include:. Symptoms include:. Bilateral medial medullary syndrome is a rare complication from a stroke. Reinhold syndrome or hemimedullary syndrome is exceedingly rare.

There are only about 10 patients in the medical literature that have developed this condition. Your medulla oblongata is located at the base of your brain, where the brain stem connects the brain to your spinal cord. It plays an essential role in passing messages between your spinal cord and brain.

If your medulla oblongata becomes damaged, it can lead to respiratory failure , paralysis , or loss of sensation. Here's what left brain vs. A stroke occurs when blood supply to the brain is interrupted. The way a stroke affects the brain depends on which part of the brain suffers damage….

Your doctor may find a choroid plexus cyst during a routine prenatal ultrasound. These cysts usually resolve on their own and rarely lead to…. The medulla becomes continuous with the spinal cord here at the foramen magnum. The medulla, the pons and the midbrain are located just behind the basilar part of the occipital bone, and the dorsum sellae. The dorsal aspect of the medulla faces almost directly backwards. The back of the upper part of the medulla forms the floor of the fourth ventricle.

On the model, this is the fourth ventricle, this is the floor. This arch of tissue is the superior medullary velum, which forms the roof of this part of the ventricle. This delicate tissue, the inferior medullary velum, forms this part of the roof.

This cut surface is the attachment of the cerebellum. It's described as consisting of the superior, middle, and inferior cerebellar peduncles, which are somewhat fused together. The ventral aspect of the medulla is marked on each side by these bulges, the pyramid, and the olive. Emerging from the ventral and lateral surfaces of the medulla are the filaments of the four lowest cranial nerves, the twelfth, the hypoglossal; the eleventh, the accessory; the tenth, the vagus; and the ninth, the glossopharyngeal.

Here's the brain stem in situ, seen from behind,. The tentorium has been removed to give us this view. Here's the cerebellum, divided in the midline.

Here's the divided cerebellar peduncle. Here are the filaments of the hypoglossal nerve making their exit from the cranium. Here are the accessory, vagus, and glossopharyngeal nerves making their exit together through one opening. Above the medulla is the pons. On each side the pons becomes continuous with the middle cerebellar peduncle.

Arising from the groove between the pons and the medulla are the next three cranial nerves. As the anterior lateral line nerve enters the medulla it divides into dorsal and ventral roots. Single unit responses of dorsal root fibers to electric field and mechanical stimuli indicate that the dorsal root consists only of ampullary fibers, whereas the ventral root consists only of mechanoreceptove fibers. The dorsal and ventral roots of the anterior lateral line nerve terminate in the dorsal and medial octavolateralis nuclei respectively, indicating that the dorsal nucleus is the primary electroreceptive nucleus of the elasmobranch medulla and the medial nucleus is the mechanoreceptive nucleus.

Averaged evoked potential responses to electric field stimuli could be recorded from the dorsal but not the medial nucleus, further evidence that the dorsal nucleus is the electroreceptive nucleus.