Exercise 3: Neurophysiology of Nerve Impulses: Activity 3: The Action Potential: Threshold Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly. 1. Axons are You correctly answered: d. long‚ thin structures that extend from a neuronal cell body. 2. Which of the following is easier? Your answer : b. intracellular recordings of the action potential Correct answer: a. extracellular recordings of the action potential 3. An action potential is usually initiated in
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Although wedding dresses are the most important part of the wedding‚ shoes always are also playing a vital role in your wedding dressing. A brilliant pair of ivory wedding shoes cannot only add beauty to the dress‚ but also improve the delicate taste. Beautiful bride should be perfection from head to toe‚ in addition to a superb wedding‚ beautiful makeup‚ flashing jewelry and charming smile. Key point: The best time to choose shoes is around 3pm to 6pm because feet will swell slightly
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I am Ivory Cheyenne Frye. I’m a fifteen year old who was born on September 15‚ 2001 to Ivory Teresa Frye and David Mich’el Frye. I have four siblings and all of them are brothers. They annoy me quite a bit‚ however‚ I will always care for them. My favorite color is blue and I love music. “Very bubbly” is how some of my closest friends would describe me and I’m proud of it. Some of my closest friends are found in my youth group at Firstborn ministries . Out of all of my friends‚ My absolute‚ bestfriend
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The Brain and Cranial Nerves Chapter 14 Notes 14.1 Brain Organization‚ Protection‚ and Blood Supply * brain: a portion of the CNS made of neurons and neuroglia * control center for registering sensations and correlating them together and with stored information to make decisions and take action * center for intellect‚ emotions‚ behavior and memory * neural tube: brain and spinal cord develop from the ectodermal tube * anterior part expands * inner
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Recent advances in technology permit measurement of characteristics of the nerve fibres that make up the optic nerve. One of these is SD-OCT(Fig2)‚ a non contact‚ non-invasive method that enables physicians to obtain in vivo‚ high resolution (upto 5 microns) cross-sectional images of the retina. It is based on principle of low-coherence interferometry(Fig 3). By imaging a 3D cube of data it allows a detailed evaluation of the peripapillary area. Fig 2 : Cirrus HD OCT machine In low-coherence interferometry
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Exercise 3: Neurophysiology of Nerve Impulses Worksheet Assignment Due: Week 4 Eliciting a Nerve Impulse Activity 1: Electrical Stimulation 1. Do you see any kind of response on the oscilloscope screen? No 2. What was the threshold voltage‚ or the voltage at which you first saw an action potential? The threshold voltage is at 3.0 V. 3. How does this tracing compare to the one that was generated at the threshold voltage? There was a slight increase. 4. What reason can you
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Gray matter 2) The filum terminale is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral column b) An indentation on the dorsal side of the spinal cored c) The tapered end of the spinal cord d) An extension of the pia mater that anchors the spinal cord to the coccyx e) Where the cell bodies of sensory neurons are located 3) The cauda equina is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral
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Module 06 Case Study: Articulations and Nerve Tissue Part I— “Jill” Questions 1. What is the difference between a tendon and ligament? (1 point) --The difference between a tendon and a ligament is that a tendon attaches to muscle. (ie. muscle-bone‚ muscle-muscle‚ muscle- skin) A ligament‚ however‚ attaches to cartilage. (ie. cartilage-bone‚ cartilage-cartilage‚ bone-bone) 2. What bones form the articulation (joint) of the ankle? Did Jill most likely sprain or strain her ankle? Explain your
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Abstract: The purpose of this 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
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Exercise 19: Gross Anatomy of the Brain and Cranial Nerves HUMAN BRAIN- RIGHT LATERAL VIEW -(A - E) A = POSTCENTRAL GYRUS B = PARIETAL LOBE C = PARIETO-OCCIPITAL SULCUS D = OCCIPITAL LOBE E = CEREBELLUM HUMAN BRAIN- RIGHT LATERAL VIEW -(F - L) F = PRECENTRAL GYRUS G = CENTRAL SULCUS H = FRONTAL LOBE I = LATERAL SULCUS J = TEMPORAL LOBE K = PONS L = MEDULLA IN WHICH OF THE CEREBRAL LOBES ARE THE FOLLOWING FUNCTIONAL AREAS FOUND? AUDITORY CORTEX TEMPORAL LOBE IN
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