Excitatory postsynaptic potential

Myasthenia Gravis Background Myasthenia gravis is a Type II autoimmune disorder in which antibodies form against various types of receptors, kinases, or proteins (1). There are four subtypes of myasthenia gravis, with the most prevalent subtype being due to autoantibodies against the muscle-type acetylcholine receptor, AChR, at the neuromuscular junction (2; 3). The second subtype involves antibodies against the muscle-specific kinase, MuSK, and the third type is due to autoantibodies against…

This essay is about the brain and the growth mindset. Did you know that the brain is the command center for the nervous system? Well yes, the nervous system is part of the brain. There are 100 billion neurons in our brain alone. The brain sends messages via the spinal cord to peripheral nerves throughout the body that serve to control the muscles and internal organs. The largest part of the brain is called the cerebrum. The cerebrum is divided into two cerebral hemispheres, which…

The Central Nervous System is the most important organ system in the human body because it is how we control our body. It consists of the spinal cord, nerve cells, and parts of the brain (Organ System Skit). “The nervous system takes in information through our senses, processes the information and triggers reactions, such as making your muscles move or causing you to feel pain” (How Does the Nervous System Work? NCBI). In addition, when the body wants to move, the brain sends a message to the…

under the same concept. Most roller coasters start out by ascending to a higher surface which is done to build up enough potential energy to power the carts throughout the entire ride. Energy is usually defined as the ability or capacity to perform work, there are many different types of energy all of which can be grouped into two groups: kinetic energy and potential energy. Potential energy according to "Study.com" is the stored energy that an object has made by positioning, and the idea behind…

The Archers Paradox What is it? Have you ever heard the term “Straight as an arrow”? Well, this isn’t exactly accurate. Arrows don’t exactly fly straight, they twist and bend as they fly. When you draw back and release your bowstring the large force of kinetic energy stored in the limbs gets transferred into the arrow and this force causes the spine of the arrow to start bending as it gets pushed forward. The archer’s paradox is this bending of the arrow around the bow as it is being loosed…

About 8 months ago my husband and my life changed. My husband was diagnosis with a disease called Multiple Sclerosis. I have heard of this disease but I never knew what exactly it is. I didn’t know what the symptoms was, the life expectancy, and it was a very foreign matter for both my husband and I. Since we found out I have done tons of research trying to find out everything I can to get some type of knowledge for this. Overview Multiple Sclerosis or M.S. is a chronic disease. This disease…

the cell. 2. Resting membrane potential is the difference in voltage of the fluids inside a cell and outside a cell. It is measured by the difference in voltage inside and outside of the cell. 3. On the outside of the resting membrane potential it would remain at 0, however on the inside it dropped the voltage from -70 to -40. This happened because with the increase of K+, there was more K+ to pass through the leak channels, resulting in a lower resting membrane potential. There are less leakage…

The refractory period is when the nerve or muscle cell fires during which the cell can’t respond to stimulation not until the resting potential is re-established. This process is called the refractory period. The first part of the refractory period this is called the absolute refractory period. It reaches the start of the action potential until the K+ begins to shut. During this process, the sodium channels are active, so the membrane will not respond to the stimuli. The second part…

The human body is a phenomenal system that is skilled in working with a handful of diverse thought functions. For example, neurons are the building blocks of the nervous system. They interact with one another from the nervous system to transmit messages throughout the body, as well as sensory information. In fact, neurons change from different size and shape. The nervous system contain three separate functioning components: the sensory division, the motor division, and the interneurons. First,…

1. Describe a roller coaster design that the cart was not able to travel through safely. There was only a few things that would make a roller coaster design dangerous for the cart. One example would be how pointy the angle was for of each hill. The more pointy the hills, the more dangerous the landing of the cart would be. Another example would be the height of the loop of the roller coaster. The loop should be high enough so that the cart could travel with more energy. 2. Describe a…