Frogs Dissection: 1. Where is the frog’s heart compared to its lungs? How do the locations of these two organs affect interactions between the frog’s respiratory and circulatory systems? The frog’s heart is in front and above the liver while the lungs are under the liver and off to the sides. The locations of these two organs affect interactions between the frogs’s respiratory and circulatory systems because a frog’s heart needs oxygen which is required from the lungs therefore the circulatory
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usually less than 0.25mm in length and covered with minute hair-like projections called cilia. They are characterized by their cilia which are used in locomotion and during feeding. Paramecia feed on bacteria. Paramecia have 2 nuclei‚ 1 macronucleus and 1 micronucleus. Some have up to 80 micronuclei! The organism cannot survive without macronucleus and cannot reproduce without micronucleus. I used the 4x on the Parmecium caudatum to measure 11 cells they varied in length from 145.44-199.98um‚
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Influence of dietary state and insulin on myocardial‚ skeletal muscle and brain [18F]fluorodeoxyglucose kinetics in mice Michael C Kreissl1‚2*‚ David B Stout3‚ Koon-Pong Wong1‚ Hsiao-Ming Wu1‚ Evren Caglayan4‚ Waldemar Ladno3‚ Xiaoli Zhang1‚ John O Prior1‚5‚ Christoph Reiners2‚ Sung-Cheng Huang1 and Heinrich R Schelbert1 Abstract Background: We evaluated the effect of insulin stimulation and dietary changes on myocardial‚ skeletal muscle and brain [18F]-fluorodeoxyglucose (FDG) kinetics and
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Exercise 2: Skeletal Muscle Physiology Worksheet Single Stimulus Activity 1: Identifying the Latent Period 1. How long is the latent period? 2.78 msec 2. Does the latent period change with different stimulus voltages?No Activity 2: Identifying the Threshold Voltage 1. What do you see in the Active Force display?I saw a very slight peak at .8 2. What is the threshold voltage? .8 V 3. How does the graph generated at the threshold voltage differ from the graphs generated
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Background: As members of the class Amphibia‚ frogs may live some of their adult lives on land‚ but they must return to water to reproduce. Eggs are laid and fertilized in water. On the outside of the frog’s head are two external nares‚ or nostrils; two tympani‚ or eardrums; and two eyes‚ each of which has three lids. The third lid‚ called the nictitating membrane‚ is transparent. Inside the mouth are two internal nares‚ or openings into the nostrils; two vomerine teeth in the middle of the roof
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The Skeletal System 2/17/13 Period: 2 Sierra Smith Emily Johnson Imani Rigguns The skeletal system is one of the most important systems in the human anatomy. Without this system our bodies wouldn’t have any source of motion or movement. From the skull all the way to the toes of our feet‚ everything is important. Out of the 206 bones‚ they all form our different shapes and make us all unique. They create our framework and enables us the move and perform our different
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Samantha Meyer BIOL 303 Systems Lesson Plan Title: Skeletal System Grade Level: 2nd Grade Purpose: The purpose of this activity is to learn about the skeletal system and where the bones are located in the body. Objective: Students will be able to create their own model of the skeletal system and label a model of the skeletal system. Materials: Real life skeleton model Smart board www.brainpop.com (skeleton) Skeleton diagram worksheet (1 per student) Skeleton model project cut outs (1 per
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7.Area of Sectors and Segments.notebook Arcs‚ Sectors and Segments March 27‚ 2012 Arc - part of a circle’s circumference - measured in degrees or length units. Mar 1710:25 AM Length of an Arc = Mar 1710:28 AM Example: Determine the length of arc AB. A 80 Pull m = measure of central angle in degrees 5 cm B 0 r = radius of circle Mar 1710:30 AM Mar 1710:33 AM 1 7.Area of Sectors and Segments.notebook Sector - part of a circle formed by two radii and an arc. March 27‚ 2012
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The two main processes involved in muscle contraction are cross-bridge cycling and the length-tension relationship‚ which normally function to maximize contraction in the muscle. Beginning with the activation of a motor unit‚ the ions flow from the motor unit towards the muscle fibers that it innervates by the motor neuron in the same way as a normal muscle would. However since the tissue is damaged‚ the force that is generated by these muscle fibers will not be as great‚ leaving the fibers less
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Muscle Tissue Introduction * Motion * Results from alternating contraction (shortening) and relaxation of muscles * Skeletal system * Provides leverage and a supportive framework for this movement * Myology – study of muscles Muscle Tissue * Alternating contraction and relaxation of cells * Chemical energy changed into mechanical energy Types of Muscle Tissue * Skeletal muscle – primarily attached to bones * Striated and voluntary * Cardiac
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