Excitatory postsynaptic potential

neuron. The neuron sending the message, called the presynaptic neuron, releases chemicals called neurotransmitters into the synapse. These neurotransmitters bind to receptors on the neuron receiving the message, or the postsynaptic neuron. If enough neurotransmitters bind to the postsynaptic neuron, the signal continues to the axon and the next neuron in the…

The interactions with the taste receptor cells will produce an action potential that will induce an action potential in taste sensory neurons. A neuron has 3 main parts: the dendrite, the cell body, and the axon. Information will be able to move faster in bigger and myelinated axons. In sensory neurons, the action potential is trigger at the dendrite. Each neuron has a cell membrane that encloses each neuron. The cell membrane is semi-permeable…

Fill the flat beaker with water. 6. Place a plastic bag over the top of the cylinder and place it, upside down, in the flat beaker. Make sure the bottom of the beaker is always underwater. 7. Fasten the beaker in place using the stand, clamp and boss. 8. Place one end of the tube inside the large beaker and fasten the other to the cynical flask’s arm. 9. Quickly pour the CaCO3 into the cynical flask, plug in the rubber stopper and start the stop watch. 10. Every 10 seconds,…

manic depression | Attentiveness, emotions, sleeping, dreaming, and learningReleased as hormone into blood | Excitatory (alpha1, beta1, beta2)Inhibitory (alpha2) | DA (Dopamine)The loss of dopamine in certain parts of the brain causes muscle rigidity typical of Parkinson’s disease | Controls movement and postureModulates moodCentral role in positive reinforcement and dependency | Excitatory (D1)Inhibitory (D2) | 5-HT (Serotonin)Depression, suicide, impulsive behavior, and aggressiveness are…

The human brain consists of about 100 billion nerve cells that receives and send messages to other cells through chemical and electrical means (Skaggs, 2013). The main job of the nervous system is to receive data through sense organs, translates messages, process and respond to both internal and external stimuli (Saladin, 2012 p440). Nervous system uses chemical and electrical signal to communicate from neurons to another at high speed. More than 100 billion neurons found in the brain. Basic…

Justification and Relevance of Lesson Energy is the ability to do work. It has the potential to make changes, and any changes are due to work being done. This is significant because work can generate energy, and energy itself can do work (i.e., work done on windmills by the wind produces energy, and energy is used in homes to do work). Standards and Learning Objectives Content Learning Standards (s) HS-PS3-2: Energy at the macroscopic scale. • PS3.A: At the macroscopic scale, energy manifests…

Before a Trebuchet is fired, there is a large amount of potential gravitational energy in the counterweight. This is turned into kinetic energy as the counterweight falls. Since the law of the conservation of energy states that the energy has to go somewhere, the energy in the counterweight also needs to go somewhere…

extracellular space around it due to the passive channels. Once the sensory receptors have detected a stimulus, the graded potentials open up sodium chemical gates which cause sodium to enter the cell but, for an action potential to occur the graded potential must reach a certain threshold (-55mv). Once the graded potential reaches its threshold it can now turn into an action potential, the voltage-gated sodium channels open up, and the inside of the cell becomes highly positive due to all of…

experiment was to understand kinetic and potential energy and verify the Law of Conservation of Energy. Kinetic and potential energy are both forms of energy that usually coincide with each other; potential energy usually changes into kinetic energy and vice versa. While potential energy results from an object’s position or arrangement of parts, kinetic energy results from an object’s motion. Together, the sum of an object’s kinetic energy and the potential energy at that instant is its total…

Fish’s consist of a diverse amount of species each known for their characteristics that set them apart from the rest. The characteristics that make the general understanding of a fish are, vertebrate, aquatic, Gills rather than lungs, paired limbs(fins) for locomotion, and are covered with scales. When we see fishes in aquariums we have an irresistible urge to tap the glass, and in doing so, a lot of the fishes get startled and move away performing a sequence of steps called an c-start used as…