Chapter 5 Outline •Sensation is the detection of physical energy from the environment which weencode as neural signals. •When we organize and interpret our sensations‚ it is known as perception •The beginning level of sensory analysis is also known as bottom- up processing •Top-down processing is the information processing guided by higher-level mental processes‚ as when someone constructs perceptions drawing on our experienceand expectations. •Bottom up processing is sensory analysis that begins
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Blank docs 1 2 3 4 5 6 7 7 7 7 7 7 7 7 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ 1. stimulus range: threshold = .8 v‚ max = 8.5 v 2. muscle response: twitch with 3 phases (latent‚ contraction‚ relaxation) 3. effects of increasing stim. Intensity on muscle force: forces increases then stays constant 1. Nervous Sys. I: Action Potential; Ion Channels; Membrane Potential 2. Nervoous Sys. II: Synaptic Potentials and Cellular Integration
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Then‚ we observed the wave patterns of the electrical impulses of the heart. We also identified the different intervals needed to be observed. Next‚ we interchanged the electrodes on the forearms with each other to be able to see a change in the electrical activity of the heart. Based on the results‚ all three subjects have normal QRS and Q-T intervals. On the other hand‚ Subject 3’s P-R value is not within the normal range‚ indicating his impulse might have taken a shorter route. Also‚ all three subjects
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resting membrane * COLD – is the condition that slows down blood flow II. Conduction System Cellular Electrophysiology of the Heart * The fast‚ more organized tracts include the SA Node‚ AV junction (AV node and the Bundle of His‚) and Purkinje fiber. * SA and AV Nodes * SA Node is the major pacemaker of the heart. It keeps intrinsic heart rate at 60100 bpm * The AV node receives impulse from atria and slows
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functions as the control center of the body‚ and it is in charge of the activities of the rest of the organs systems and the body’s components (Marieb‚ E.N. & Hoehn‚ K.). It helps the body communicate external environmental factors via electrical impulses that are transmitted through cells called neurons. These neurons can be up to a meter long and target a specific effector which it will help
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A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals changes the current flowing through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power‚ a transistor can amplify a signal. Today‚ some transistors are
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CARDIO Tendon xanthomata: deposition of yellowish cholesterol rich material in the tendons‚ asociared with hyperlipidaemia. Eg on knuckles Xanthelasma: cholesterol deposits around the eyes. Corneal Arcus: deposition of cholesterol/lipid in the cornea. CRP : acute phase of protein produced predominantly by the liver in response to inflammatory cytokines Chest Pain on Xray: evidence of another cause of chest pain such as air in the mediastinum (oesophageal rupture) or aortic dissection
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arm. 4 A’s assessment for chronic pain management had ben documented. Physical exam was WNL. Treatment plan included UDS‚ EMG/NCS and medications. Nerve Conduction Study done on 10/17/15 demonstrated moderate carpal tunnel syndrome on the right side. Compared to his nerve conduction study from 2012‚ there was some worsening of the conduction. Treatment to date includes medications‚ PT‚ trigger finger injections‚ acupuncture‚ radial tunnel release in April 2015 and carpal tunnel release in August
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Effects of Selected Drugs During anesthesia‚ there is a great amount of drugs used to suppress the pain that would occur to the body. There are some common drugs that are used. Alcohol‚ Aspirin‚ Lidocaine‚ Morphine‚ and Succinylcholine are all used during anesthesia. Each is used to interrupt the pain signals during surgeries. Without these medications‚ the body would not be able to withstand such trauma occurring to perform the procedure fully. For many years‚ men and women have used the
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Chapter 1 • Anatomy & Physiology • Gross anatomy – visible to naked eye • Microscopic • Developmental • Pathological anatomy • Radiographic anatomy • Molecular biology • Physiology • Focuses on cellular or molecular level • Principle of Complementarity of Structure and Function • A&P are inseparable • Function reflects structure • Specific form • Levels of organization 1. Chemical level 2
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