Zoo Virtual Field Trip Katherine A. Cottrell Liberty University EDUC 500 Zoo Virtual Field Trip In today’s technology age‚ virtual field trips can provide cognitive and affective gains similar to those of a real-life study trip. Field trips taken online can transport students to locations too far away to travel and are cost effective for the school district and parents as well. Teachers can guide and interact with all students in the class for the duration of the virtual field trip‚ which
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When Milena was 8 months old. Q. How does your baby’s eating‚ sleeping and motor development compare to the typical developmental patterns? It’s recommended to give solid foods to an infant at 6 months of age‚ but in my child Milena’s case she only started to become interested in them at 8 months of age. Her pediatrician recommended that Milena should eat different types of foods that are taken from our family dinners. The Doctor also recommended to ground up our table food. After the physical
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Exercise 8 Simple Muscle Contraction • 3 Phases AB - lag phase or latent phase - (shortest) 0.00sec‚ usually less than 0.01sec - brief period that exists between the application of the stimulus and the start of contraction BC - contraction‚ 0.05sec - peak - shortening of the muscle occur CD - relaxation period‚ 0.05 sec - Occurs when Ca+ is transported back in the sarcoplasmic reticulum Single muscle contraction= 100vib/sec (tuning fork)= 0.10 sec 10vib (result) Neuromuscular junction - formed when
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between the application of the stimulus and the last point where the active force is zero (just prior to contraction). How long is the latent period? _2.78_ msec What occurs in the muscle during this apparent lack of activity? The muscle is reacting internally and getting the signals to contract. Investigating Graded Muscle Response to Increased Stimulus Intensity 1. Click Clear Tracings if there are tracings on your screen. 2. Set the voltage to 0.0‚ and click Stimulate. 3. Click Record Data. If you
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Chapter 9: Muscles and Muscle Tissue‚ Lecture Outline: I. Overview of Muscle Tissues (pp. 276–278; Table 9.1) A. Types of Muscle Tissue (p. 277; Table 9.1) 1. Skeletal muscle is associated with the bony skeleton and consists of large cells that bear striations and are under voluntary control. 2. Cardiac muscle occurs only in the heart and consists of small cells that are striated and under involuntary control. 3. Smooth muscle is found in the walls of hollow organs and
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Virtual Retinal Display Seminar Report 2004 Abstract The Virtual Retinal Display (VRD) is a personal display device under development at the University of Washington ’s Human Interface Technology Laboratory in Seattle‚ Washington USA. The VRD scans light directly onto the viewer ’s retina. The viewer perceives a wide field of view image. Because the VRD scans light directly on the retina‚ the VRD is not a screen based technology. The VRD was invented at the University of Washington in the
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Skeletal Muscle Physiology: Activity 3: The Effect of Stimulus Frequency on Skeletal Muscle Contraction Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly. 1. During a single twitch of a skeletal muscle Your answer : a. calcium is not released from the sarcoplasmic reticulum. Correct answer: b. maximal force is never achieved. 2. When a skeletal muscle is repetitively stimulated‚ twitches can overlap each other and result in a stronger muscle contraction
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During a Muscle Contraction The muscle fiber is in a resting state. The resting state is slightly negative inside and slightly positive outside. It has to be in this state in order to receive a message. First the brain sends a message to the muscle using a neuron then reaches the axon terminal of the neuron. Calcium gates then open on the axon terminal allowing calcium to rush in. Ach release from axon terminals‚ diffuses across the synaptic clef and binds to (receptors) on motor end plate. Then
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types of muscle skeletal which are voluntary‚ smooth muscle which are involuntary and cardiac muscle. Muscle is made up of protein filaments‚ myosin and actin. These filaments slide past each other to produce a contraction which changes both the length and shape of the cell. The primary function of the muscle is to produce both movement and force. Skeletal muscle is composed of bundles of muscle fibres containing myofibrils of thick and thin filaments (myosin and actin). Skeletal muscle have distinct
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Artificial electrical stimulation of the nervous system is one of the foundations of neurotechnology. However‚ the use of electrical currents to stimulate the nervous system presents several challenges. It is difficult to achieve selective stimulation of only the targeted neurons without activating neighboring neurons. Further‚ electrochemical reactions at the electrode-tissue interface may lead to electrode dissolution or tissue damage. As an alternative‚ magnetic stimulation can be used to stimulate
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