Cerebral cortex

The two-point threshold experiment is meant to test a person's ability to perceive details on different parts of the body. Measurements varied on regions of the body depending on the size of their receptive fields. While the distance of the two points on my forearm was about three and a half centimeters, the distance between them on my upper arm was just barely four centimeters. Another example would be between my finger and thigh. The distance between the two points on my finger was 0.3…

retaining the information. 2. I am the thalamus, who is loacted within each cerebral hemisphere. My function is to process and intergrate sensory information and to relay it to the cerebral cortex. During this experience I was invovled with regulatining the level of awarness and attention in seeing the green ribon as a snake. In addition, I process the seonsry information that I have saw through the occipital lobe to the cerebral cortex. 3.…

and oxygen to the cerebral tissues. In a healthy individual, blood, oxygen, and nutrients such as glucose are brought to the brain through both the vertebral arteries and the internal carotid arteries, which branch off from the aorta. The brain requires about 20% of the body’s cardiac output. The internal carotid arteries branch off into the anterior and middle cerebral arteries, which form the anterior circulation and supply the front of the brain. The anterior and middle cerebral arteries also…

mainly by the development of plaques and neurofibrillary tangles in the affected brain parts. The main parts of the brain that are affected are those whose functions relate to memory, of which the hippocampus is the main area, as well as the cerebral cortex which determines cognition, decision-making, and thinking. These two affected areas lead to the characteristic symptoms of memory loss as well as cognitive and behavioral problems respectively. Amyloid plaques or senile plaques, and…

The glia cells are one of the most common cell types in the brain that play a very important role in the neuronal functioning. The glia cells can be divided in to three groups that differ in structure and function: microglia, astrocytes and oligodendrocytes. Several studies showed that there is an involvement of the glia cells in the pathogenesis of neurodevelopmental disorders, but in this paper the focus lays on the microglia cells (10). The microglia act as the macrophages of the central…

The immediate purpose of my speech is to explain Cerebral Palsy and the different types. According to Cerebral Palsy Alliance Research Foundation, every hour a baby is born with cerebral palsy. Approximately, 17 million people have Cerebral Palsy. Using my 3 main points, I am going to attempt to inform you about Cerebral Palsy and hopefully you have a better understanding of the disorder. I understand how C.P. can affect people because I have an older brother that was diagnosed at 3 years old.…

1 Central Nervous System Communication As stated by the website, umaine.edu, agenesis of the corpus callosum is a rare birth defect, a lifelong brain abnormality, in which there is a complete or partial absence of the corpus callosum. This occurs when the corpus callosum, which is the band of white matter connecting the two hemispheres in the brain, fails to develop normally, typically during pregnancy. The types of behavioral changes that would occur because of this failure to develop are…

The motor circuit consists of sending output information to the cerebral cortex , pedunculopontine nucleus and the midbrain locomotor area. The direct pathway consists of the the substantia nigra via the nigrostriadal pathway sends dopamine cells that are excitatory to the globus pallidis internus . The globus pallidus is inhibited creating disinhibition of the thalamus and excitory neurons are sent to the motor cortex. The result is facilitation to the lower motor neurons that…

The patient presents an intracranial lesion to the anterior frontal lobe. This will result in damage of the prefrontal cortex causing apraxia and mild rigidity. The prefrontal cortex contains Brodmann’s Areas 9, 10, and 11. Damage to Area 9 is “frontal syndrome” which means the patient rarely follows a plan to completion. Area 10 is involved in judgement, anticipation of consequences, and social intelligence. Area 11 is on the ventral surface of the frontal lobe and incorporates emotions,…

Cerebral palsy is a group of neurological disorders. It is diagnosed during infancy or childhood and it permanently affects the body movements and the muscle coordinations. Cerebral palsy is caused by many disorders inside the brain during the development that stops the brain’s ability to control motor movements. Cerebral palsy (CP) affects the motor function of the brain’s outer layer of cerebral cortex that directs muscle movement. And the cerebral motor cortex of the fetal is unable to…