Evoked potential

Describing the Roles of Sensory Receptors, Sensory Neurons and Specialized Sensory Receptors Sensory neurons are nerve cells within the nervous system that convert external stimuli from an individual’s environment into internal electrical impulses that can be transmitted from one neuron to another. For example, taste buds located in our mouth are sensory neurons that work with olfactory receptors in order to determine the flavour of the food. They are able to do this, in simple terms, because a…

Our Rube Goldberg machine used several physics concepts in order to complete its simple task, which was to turn on a Roomba. One of the most prominent physics concepts within our project was gravity and/or gravitational potential energy, which could be seen in places such as the inclined planes and the hammer swinging down. Gravity was the downward-pulling force that allowed the energy to be transferred from the top level, to the Roomba on the floor. The toppling rule was another major concept…

The Dropper is an extraordinary ride unlike any other. As the coaster winds rapidly through Sherbert Park it presents breathtaking scenery as riders travel over and through Willow River in Hudson, Wisconsin. This mid-north roller coaster, constructed of metal, has four cars per train, holding six people per car. One train will be on the track at a time. The ride was designed to appear like a torpedo, featuring a point on the front car, and black cars with burnt orange outlines, and red flames…

The egg drop project we did involved many physics principles. One of them was air resistance, which happened because the egg dropped and it accelerated, while the velocity increased. Then the resistance of the air to the egg box motion also increased, which means the upward force of air resistance balances the downward force of gravity, so the egg box dropped at a constant speed. We attached balloons to the box we made in order for the box to pass through the air while softly landing. We believe…

tree without climbing it. An elephant would have to jump onto the other side to get the little kid to his destination up in the tree. This shows that when the counterweight falls or is released the trebuchet pivots on its fulcrum, releasing the potential energy that was built up turning into enough kinetic energy to throw an object through the…

non-sedating antihistamines astemizole and terfenadine, withdrawn from the market in Europe and the United States (in 1997 and 1999, respectively) due to cardiac safety concerns (Davila et al, 2006; Kannankeril et al, 2010; WHO, 2011). Drugs with the potential to cause TdP most frequently inhibit the rapid component of the delayed rectifier potassium current (IKr), which causes a…

Last there is the brain. The brain is the control focal point of the human body. The human brain stores data, corresponding that data with other data to offer the body some assistance with making selections and to have the body put the decisions into actions. The brain and spinal cord are created from the neural tube. The neural tube then extends causing the tube to then makes three locales called the primary brain vesicles: prosencephalon, mesencephalon, and the rhombencephalon. The…

A synaptic vesicle will fuse with the membrane of the presynaptic cell and 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…

activated and then will release acetylcholine. This causes the acetylcholine to bind to the nicotine receptors that will cause the receptor to open a channel by changing shape, which allows sodium to flow into the cell. Once full, there is an action potential that that travels down the nerve, which leads to signals that allow acetylcholine to be released; however not all these cells arrive at the listening cell to be cut by the acetylcholinesterase or bound to muscarinic receptors, some wander…

1. Explain the concept of energy balance. Energy balance is essentially the balance in the body between amounts of energy consumed and expended. The energy consumed, energy intake, is the caloric or energy content of food provided by the macronutrients. The energy that is expended, energy output, is the use of calories or energy for basic body functions, physical activity, and processing of consumed foods. If someone is in negative energy balance that means their energy intake is less than their…