Cause of action

tetanus and conduction velocity of action potentials. Muscle are either directly joined to the bone or connected by tendons, which by definition are resilient bundles of collagen fibers. Motor nerves innervate the fibers of the skeletal muscles, which is controlled voluntarily. The action potential in a muscle fiber allows for an increase in the influx of calcium causing what we know as a twitch. A twitch is a contraction of the muscle due to only one action potential generated. Muscle nerves…

The receptor in this pathway is the pain receptor. Pain receptors or nociceptors are responsible for detecting pain that can or does cause damage to the skin and are located in the nerve endings. In the nerve endings, the disturbance of the tack causes an impulse exciting the resting membrane potential of the neuron to the threshold membrane potential so the action potential can be reached.The neuron's cell membrane is depolarized and the sensory receptors can convert the information into nerve…

Neurons communicate over long distances using action potentials. Action potentials occur as a result of rapid changes in membrane permeability. Resting membrane potential of a cell is approximately -70 millivolts. Large anions trapped inside the cell, negatively charged proteins, as well as a higher concentration of positively charged ions outside than inside are some of the factors that contribute to the initial negative charge within the cell at resting value. Ion concentration gradients as…

Journal 4 This week we began to discuss hiring and promotion decisions and affirmative action. One of the topics mentioned in hiring and promotion decisions is sex stereotyping. This issue is important to me because I grew up being told that girls do this and boys do that. I have four brothers and one sister that I didn’t really get along with. This led to me spending a lot more time rough housing with my brothers. I would definitely describe myself as a tomboy for the most part. Sometime at…

19: Is Affirmative Action Necessary to Achieve Racial Equality in the United States?” Is Affirmative Action Necessary to Achieve Racial Equality in the United States? Over the years, the policy of Affirmative Action has become a controversial topic throughout the political world. A question many politicians and scholars seem to come across is “is the policy of Affirmative Action Necessary to achieve racial equality in the United States?” Many would argue, yes affirmative action is necessary,…

sensation. This is all do to a critical phenomenon known as action potential. Action potential is caused by a change in various ions, specifically sodium and potassium. When the neuron is in a resting state with -70mV, there is a great amount of potassium ions inside the cell, and a plethora of sodium ions outside the cell. For something to initiate an action potential, there must be a certain stimulus or impulse. This stimulus would cause voltage-gated sodium channels to open. As sodium flows…

excitatory neurotransmitters are overactive. They cause potassium channels to open which causes the ions to flow out of the cell; which means the inside of the cell will become more negative when the receptors are activated. Dopamine can be either type of neurotransmitter. Serotonin and GABA are other examples of inhibitory neurotransmitters. 4. A receptor is normally found on the outside of a receiving cell. When signals are received by a receptor, they cause some form of response in the cell.…

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 the axon (http://www.worm) The 5 worms that…

from the axon to the spinal cord. In the spinal cord the axon on will send signals to many neurons from other cells and then it will generate an order. The membrane potential is an electrical state of the cell membrane and it allows gradients that cause ions to move across the cell membrane. The dispersal of charge across the cell membrane is measured in (mV). The resting membrane potential is the difference between the charges inside and outside the sarcolemma. The intracellular concentration…

affirmative action programs require colleges to accept a specific percentage of a racial group. Affirmative action can be defined as a policy favoring minorities that provides them with equal opportunities for education or in the workplace.Oftentimes affirmative action is viewed as positive discrimination. Supporters of college affirmative action policies believe it is necessary to provide minorities with a chance to reach their full capabilities. However, with race based affirmative action…