Motor neuron

One important role of the basal ganglia is in the service of voluntary, routine smooth motor control, and to inhibit unnecessary movements in the muscles. The basal ganglia is important for other things as well, but in diseases which cause the loss of muscle control as in the case of Parkinson's, it stands to reason that we look more closely at the basal ganglia in respects to its role in movement. The basal ganglia uses Glutamate, and Acetylcholine, both are excitatory neurotransmitters, and…

ALS or Lou Gehrig’s disease, is a neurodegenerative disease, causing the selective degeneration of both upper and lower motor neurons, as well as those in the motor cortex portion of the brain, which ultimately leads to the limited to complete loss of all voluntary muscle function. Now while the main pathology of ALS is the selective death of the previously mentioned motor neurons, more recent studies have suggested that the homeostatic imbalance of the whole body or just key cellular metabolism…

Neurons are the cells specialized to receive, conduct, and transmit signal to the nervous system. The development of neurons starts early during the embryogenesis. After the fusion of sperm and egg, zygote is formed which is further divided to form blastula eventually leading to gastrula stage of development. Gastrulation begins as invagination of cells in the embryo leading to the formation of three germ layers. Formation of notochord from the mesodermal layer marks the beginning of neurulation…

will release its content into the synaptic cleft after action potential has been reached. The relationship between a synaptic vesicle and a neurotransmitter is that the synaptic vesicle will contain neurotransmitter which are macromolecules that neurons use to communicate with each other. For worms, the synaptic vesicles release acetylcholine which will go into the synaptic cleft cause by electrical impulses that go down the axon (http://www.worm) The 5 worms that my group observed in plate A…

has two important motor pathways. These pathways are the motor cortex and the somatosensory cotex (Carlson & Birkett, 2017). The motor cortex of the brain is made up of the outer grey matter. Each side of the cortex has areas that represent particular regions of our body. Signals from these areas will travel to the particular areas of the body to preform specific movements. The thalamus is a structure that is very important in movement, as it is the relay station. The motor pathways are…

's made up of two separate systems, the brain, and spinal cord. During prenatal growth, the nervous system experiences many changes to gain its compound structure. The events of this early development include the growing of billions of neurons, axons, and the formation of thousands of synapses. The cells in the nervous system are a special type and continue to grow during the organisms life. There are approximately 100 billion cells in the nervous system.…

cells rapidly. The nerve cells (neurons) are in charge of controlling voluntary muscles such as arms, legs, and face. This disease links to motor neuron diseases which is based off the death of motor neurons. Motor neurons are nerve cells that are to be located in the brain, brainstem, and spinal cord that are the controlling unit and vital communication that links between the nervous system and voluntary ,muscles of the body. In ALS the upper motor and the lower motor die and stop sending…

system includes the motor nerves and sensory nerves. There are two main types of support cells in the nervous system which are glial cells and neurons. The neurons' function in the system is to receive and send electrical signals. The glial cells provide insulation and regulation to neurons. Some examples of the glial cells are astrocytes and oligodendrocytes. There are three main types of neurons which are composed of sensory neuron, motor neuron, and interneuron. All three neurons are made up…

starfish or jellyfish. The brain is located in the head. It receives messages from other organs. The brain is the most complex organ. In a human, the cerebral cortex has more than a billion neurons. Each of these neurons are connected by synapses. These synapses are connected to several thousand other neurons. Neurons communicate with one another by sending messages through long fibers called axons. These axons send messages by sending pulses out. The function of the brain is to have control…

muscle nourishment”, which refers to the loss of signals the neurons normally send to the muscles. Lateral means “to the side”, which refers to the location of the damage in the spinal cord. Sclerosis means “abnormal hardening”, referring to the hardened nature of the spinal cord in ALS. Amyotrophic Lateral Sclerosis (ALS) is also known as Lou Gehrig’s disease. It is an invariably fatal neurological disease that attacks the nerve cells (neurons) that control voluntary…