on spinal cord‚they control the muscle contractions. Strychnine act on the glycine receptors‚these are inhibitory receptors when they stimulate chloride channel open‚chlorine move inside and cause hyperpolarization normally.But strychnine block these glycine receptors or acts as antagonist for these receptors.As a result chloride channel does not open and no hyperpolarization and excitatory effect on muscles is not stopped and produce forceful contractions which are of longer duration and shortly
Premium Muscle Action potential
BRIDGE CROSSINGS WITH DUCTILE IRON PIPE ® BRIDGE CROSSINGS WITH DUCTILE IRON PIPE Introduction The Ductile Iron Pipe Research Association (DIPRA) periodically receives requests from engineers and contractors concerning recommendations on the design and/or installation of pipelines spanning waterways‚ highways‚ and railroads. Because the variables involved in such installations present numerous alternatives and challenges for designers and contractors‚ DIPRA does not provide recommendations
Premium Structural engineering Pipeline transport
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
Premium Blood Blood pressure Muscle
recordings showing a period of spontaneous contractions and the response to stimulating the nerves at 20 Hz with both a voltage that produced only a modest response and the voltage that produced the maximal response. (5) 1) Briefly describe the response of the ileum when it is unstimulated and during stimulation of the nerves. (5) 2) What is the frequency of the regular spontaneous contractions of the ileum? What causes these spontaneous contractions? (5) Attach a copy of your experimental
Premium Acetylcholine Nervous system Nerve
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
Premium Muscle Muscular system Myosin
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
Premium Neuromuscular junction Muscular system Potassium
`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)
Premium Action potential Neuron
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
Premium Muscle Muscle contraction Skeletal muscle
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
Premium Magnetic field Electrical generator Faraday's law of induction
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
Premium Spectroscopy