PSNS exert similar effects -Salivary glands: PSNS alone produces watery saliva‚ SNS and PSNS produce thicker saliva Cooperative-SNS and PSNS act differently but work together -Micturition:SNS increases tone of bladder muscles‚ PSNS promotes contraction -Penis:PSNS causes erection‚ejaculation is due to SNS What are the two divisions of the ANS? Sympathetic-fight or flight Parasympathetic-rest and digest Sympathetic Nervous System "Thoracolumbar" -SNS ganglia are found primarily along vertebral
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maximal stimuli (in volts) Minimal stimulus Maximal stimulus III. ISOLATED MUSCLE CONTRACTION (= MUSCLE TWITCH) The response of a muscle to a single brief threshold stimulus is called a muscle twitch. There are three phases in a muscle twitch: 1) the latent period: it follows the stimulation‚ the excitation-contraction coupling is occurring and no response is seen on the myogram; 2) the period of contraction; and 3) the period of relaxation. A twitch may be strong or weak depending on the
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was .3 volts created by a contraction of a low number of the fibers in the muscle. When you increased the shock to 1 volt you increased the tension made by the muscle because of an increase in the amount of contracting muscle fibers. At around 1 volt the muscle tension remained about the same because all possible motor units had been activated in the muscle. A single twitch-type contraction of every fiber in the muscle was created by high-voltage shocks made by contractions that showed near-constant
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`ANP 1105 B – Human Anatomy and Physiology I Contents 1. Structural Organization of the Human Body (2 Lectures) 1.3.1 Tissues Tissue: groups of structurally similar cells that have perform common/related function Tissues cooperate within an organ for function of organ as a whole‚ different issues = division of labor 1.3.2 4 Types of Tissue: 1. Muscle Tissue: movement 2. Epithelial Tissue: covering 3. Nervous Tissue: control (regulation)
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through the urinary tract. C) Its function is largely under involuntary control. D) It is a kind of connective tissue. E) It is responsible for locomotion. Answer: e Level: 1 5. Which of the following actions is caused by contraction of skeletal muscle? A) contraction of the heart B) moving your feet in walking C) movement of food through the G.I. tract D) emptying of the urinary bladder E) vasoconstriction Answer: b Level: 2 6. Smooth muscle and cardiac muscle are similar in that they
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Date Performed : November 27‚ 2012 Date Submitted : December 4‚ 2012 Engr. Timoteo V. Limsiaco Laboratory Instructor I. MATERIALS: * Digital Wattmeter (DWM) * Digital Multi-meter (DMM) * Variac * Plastic Coupling * 10 Alligator Clips (Big Wire) * 10 Banana Plug (Big Wire) * 1 Banana Plug with Flat Plug Combination II. WIRING DIAGRAM: Circuit Diagram of the Connections Actual Wiring of the Shunt Generator with Connected Loads
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and Plasma atomization methods • Excitation and atomization for absorption: – Traditionally based on • • • • • • 1) 2) 3) 4) 5) 6) 7) 8) flame Electrothermal arc and spark & Plasma find important application ICP is the most important but excitation for emission spectrometry offers increased atomization/excitation Lower inter-element interference due to high T emission from multiple species simultaneously under a set of excitation conditions spectra for many elements
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Threshold can be said that the level of needed stimulation to trigger the smallest measurable contraction resulting from the excitation and contraction of the first few muscle fibers [1]. The contraction can occur due to the depolarization of the plasma membrane so called sarcolemma. The depolarization can happen if the stimulus is enough to achieve the threshold. The stimulus cannot be lower than
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Bio 112 Exam #4 Homework Animal Body and How It Moves 1. Briefly describe the body of all vertebrates? A tube within a tube‚ a digestive tract- long tube from mouth to anus that is suspended in coelom‚ coelom subdivided into two cavities- separated by diaphragm in mammals and some reptiles. Peritoneal cavity- stomach‚ intestines‚ liver. Thoracic cavity- heart and lungs. All vertebrate bodies supported by internal skeleton skill around brain and vertebra around spinal cord and dorsal nerve cord
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Another mechanism of tonic contraction of the lower esophageal sphincter includes the parasympathetic (vagus) nerve‚ or cholinergic vagal stimulation‚ which applies an inhibitory effect on the amount of sphincter pressure making it easier for the lower esophageal sphincter to contract
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