Motor neuron

When something we touch is bad for us we all want to be able to feel it and pull away as fast as we can to not cause trauma to our skin or even worse, the trauma is so bad that it ends up in death. Tactile perception is a very important part to us humans and animals and without it we wouldn’t be here. Tactile perception is the sense of touch. It also has to do with the brain’s ability to perceive what is being touched. Touch is a complex system called the somatosensory system; the sense that…

stimuli and necessary functions at up to two hundred and eighty miles per hour. Nerves are made up of neurons are classified based on function: sensory, motor, and interneurons. Sensory neurons send messages based on their specific sense to the brain. Motor neurons control the contraction and extension of muscles, and interneurons are neurons that communicate with and relay messages between neurons. The central nervous is made up the brain, which is made up the cerebrum, the cerebellum, and the…

The body and mind undertake many activities. However, these activities are mostly controlled by the central nervous system (CNS). The brain and the spinal cord are the main components of the central nervous system. The brain is divided into three portions: the hindbrain which houses units of the brain that controls heart and sleeping patterns, the midbrain which links the forebrain to the hindbrain and also controls the heart rate and sweating, and the forebrain which controls our voluntary…

as the myelination of the neurons as well as specific genes and the thickness of the surrounding cells of the neuron. A Study done on molecular neurodegeneration states, “Finally, we document that the loss of BIN1 significantly correlates with the extent of demyelination in multiple sclerosis lesions” (De Rossi et al, 2016). The study provides information…

Infancy and childhood are periods in life where the human being experiences great physical and mental developments, at a very rapid rate. While there is an overall increase in the body size of the child during the early years and later in puberty, there are body parts that grow at different rates from the rest of the others. There are two patterns of growth which describe these various changes in the child and young adult. The first one of these two patterns is the cephalocaudal trend,…

The fingers that are used to type the lab report rely on individual myofibrils to contract and cause movement. However, this mechanism occurs on a microscopic level, and predominantly in the myofibers. When a motor neuron experiences an action potential it releases acetylcholine to the motor-end plate which binds to a receptor on the myofibril called the nicotinic acetylcholine receptor. This interaction causes the fiber to become more positive, stimulating depolarization. There are specific…

Amyotrophic Lateral Sclerosis (ALS) is a motor neuron disease sometimes called Lou Gehrig’s disease. According to Orphanet Journal of Rare Diseases (2009), Amyotrophic Lateral Sclerosis (ALS) can be defined as a neurodegenerative disorder characterized by progressive muscular paralysis reflecting degeneration and death of motor neurons in the primary motor cortex, brainstem and spinal cord. In other words, it is a disease that attacks the cells responsible for controlling the muscle action we…

Neurons have the metabolic machinery characteristics to somatic cells of other types. They have a nucleus and all other organs that are needed for a normal cellular life. Neurons are characterized by specialization in intracellular communication. Neurons in the matured CNS involves a secretion of special chemical molecules called neurotransmitters. Neuroglia provide a variety of functions for brain tissue and support the metabolic and signaling functions of the neurons. Certain types…

The difference between nature and nurture is that nature is the idea that behavior is effected by your chemical and gene make up while nurture is the idea that you are a blank slate and your behavior is distinguished by experiments. They both effect behavior is what was discovered. * Dualism is supported by cognitive psychologists such as George A. Miller and Sigmund Freud * Rene Descartes dealt with Monism vs. Dualism & Interactive Dualism * Monism is the belief that the mind…

It is a system of tubes, vesicles and sacs, made up of the cells similar to those are around the neurons. Their two types rough and smooth are two different entities and are separated from each other. Large numbers of ribosomes are bound to the surface of Rough endoplasmic reticulum. Under the prescription for sequence of the steps by RNA released by…