different electrode sites. The amplitude and the shape of the signals depend upon the position of the electrodes (Brown‚ 1999) (Conover‚ 1992). The SA node produces the pacemaker potential and if this reaches the threshold then an action potential is generated. There are five stages involved during cardiac action potentials‚ during these stages there is a flow of ions through
Premium Chemical reaction Heart Enzyme
When a ball is dropped/ thrown to the ground‚ gravity forces the ball to move downwards‚ whilst the ball falls down‚ the Gravitational Potential Energy (GPE) that the ball has transforms into Kinetic energy. As the ball hits the ground with maximum Kinetic energy‚ the forces in play flatten and deform the frame/shape of the ball by compressing and dispersing the molecules that essentially make up the ball. As stated in the law of conservation energy‚ energy can neither be created nor destroyed; rather
Premium Potential energy Kinetic energy Energy
applying a net force‚ the object speeds up and thereby gains kinetic energy(Kinetic Energy) which will make my car go further. This illustrates how if there is more potential energy than kinetic energy the car won’t go nearly as far as it could. According to my research‚ potential energy is stored energy that is waiting to be used(Potential Energy)‚ so that means
Premium Force Classical mechanics Potential energy
Chapter 6 Resting Membrane Potential (RMP) What is the Resting Membrane Potential (RMP)? ELECTRIC POTENTIAL – separation of opposite charges between 2 points. (“Has the potential to do electrical work if allowed to come together!”) vs. large potential difference small potential difference Magnitude of charge separation = potential difference ** measured in volts (1 Volt
Premium Electric charge Cell membrane Volt
Name: Christina Hale Exercise 3: Neurophysiology of Nerve Impulses: Activity 4: The Action Potential: Importance of Voltage-Gated Na+ channels Lab Report Pre-lab Quiz Results You have not completed the Pre-lab Quiz. 02/28/15 page 1 Experiment Results You have not completed the Experiment. Experiment Data: 02/28/15 page 2 Post-lab Quiz Results You have not completed the Post-lab Quiz. 02/28/15 page 3 Review Sheet Results 1. What does TTX do to voltage-gated Na+ channels? Your answer: It
Free Action potential Axon Neuron
Activity 4: Generation of Action Potentials Name: Instructor: Date: PREDICTIONS 1. Exceeding the threshold depolarization at the trigger zone DECREASES the likelihood of generation of action potential. 2. Action potential amplitude: DOES NOT CHANGE with distance 3. Increasing frequency of stimulation to the trigger zone: DOES NOT increase the production of action potentials. MATERIALS AND METHODS Experiment 1: Effect of Stimulus Strength on Action Potential Generation 1. Dependent Variable
Premium Action potential
Potential Energy: Potential energy is the stored energy of position possessed by an object. Potential Energy Formula : Potential Energy: PE = m x g x h Mass: Acceleration of Gravity: Height: where‚ PE = Potential Energy‚ m = Mass of object‚ g = Acceleration of Gravity‚ h = Height of object‚ Examples: 1. A cat had climbed at the top of the tree. The Tree is 20 meters high and the cat weighs 6kg. How much potential energy does the cat have? m = 6 kg‚ h = 20
Premium Kinetic energy Energy Potential energy
measured through the amount of gravitational potential energy that the tennis ball had before it was dropped‚ and by the amount of work it had done when displacing the sand. As shown in Table 2‚ when the tennis ball was dropped at a height of 1 meter‚ it only possessed a potential energy of 0.569 J. When dropped from 5.5 meters‚ it held a potential energy of 3.217 J. This shows a positive correlation between the height of the drop and the amount of potential energy the tennis ball had. Also‚ shown in
Premium Classical mechanics Mass Kinetic energy
experiment was to examine how the compound action potentials propagate down the sciatic nerve of a frog based on varying stimuli. Before the nerve could be tested it needed to be extracted from the thigh of the frog and then submerged in saline. Several varying stimuli were used and recorded by a software package. The second experiment requires a constant stimulus with varying reference pin locations. From this the velocity of the action potential propagated can be determined. The experiment revealed
Premium Nerve Action potential Axon
Down the Hill Lab Report Kinetic & Potential Energy Name: Corinne Chen Block: 1 – 3 Date: May 22nd‚ 2013 Purpose: To investigate and compare the potential energy‚ kinetic energy and speed of a cart on a hill 1 kg h 1 m Materials: 1. 2. Cart & 1 kg mass 3. Board 4. Timer
Premium Energy Mass Kinetic energy