LAB EXERCISE 2 THE PHYSIOLOGY OF SKELETAL MUSCLE (Martini p. 306-316) Work in groups of 4 Objectives: Name and describe the phases of a muscle twitch. Explain why the "all or none" law is reflected in the activity of a single muscle cell but not in an intact skeletal muscle. Understand that the graded response of skeletal muscle is a function of the number of muscle fibers stimulated and the frequency of the stimulus. Define and explain the physiological basis of the following: - subminimal‚
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A contraction in skeletal muscle is caused by specialized intracellular thin and thick filaments‚ actin and myosin‚ sliding past each other. Contraction and relaxation of skeletal muscle bring about body movements. These body movements are voluntary and facilitated by the somatic nervous system. Near contact between somatic motor neurons and the muscle fibers are referred to as neuromuscular junctions. It is at the neuromuscular junctions that neurons are able to transmit a signal to the muscle fibers
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hysioEx 9.0 – Exercise 2: Skeletal Muscle Physiology Name: Chart 1: Latent Period Results Voltage Active force (g) Latent period (msec) 0.0 0.00 XXXXXXXXXX 3.0 1.04 XXXXXXXXXX 4.0 1.32 2.40 6.0 1.65 2.40 8.0 1.81 2.40 10.0 1.81 2.40 Chart 2: Effect of Stimulus Voltage on Skeletal Muscle Contraction Voltage Active force (g) 0.0 0.00 0.2 0.00 0.8 0.02 1.0 .15 1.5 .43 2.0 .66 2.5 .87 3.0 1.64 3.5 1.19 4.0 1.32 4.5 1.42 5.0 1.51 5.5 1.59 6.0 1.65 6.5 1.70 7.0 1.74 7
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●Essential Question: ○How did different values lead to different American subcultures in the Chesapeake‚ Southern‚ New England‚ & Middle colonies? ●Warm-Up Question: ○Based upon the documents provided‚ what are some key differences between the Virginia & New England colonies? Four Colonial Subcultures ●The different values of the migrants dictated the “personality” of the newly created colonies; led to distinct (not unified) colonies ○ The Chesapeake ○ New England ○ Middle Colonies ○ The Lower
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CHAPTER 1 Why do couples marry? Opposites attract? Birds of a feather flock together? OR BIRDS!!! We marry people very much like ourselves!!! Same - age - racial category - social class - educational level - level of physical attractiveness THE SYSTEMATIC STUDY OF HUMAN SOCIETY THE SOCIOLOGICAL IMAGINATION C.WRIGHT MILLS 3. SEEING INDIVIDUALITY IN SOCIAL CONTEXT 2. SEEING THE STRANGE IN THE FAMILIAR 1. SEEING THE GENERAL IN THE PARTICULAR 1) Helps us critically assess
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YG ENTERTAINMENT By: Samantha Li WHAT DOES YG ENTERTAINMENT DO? Create Musical Artists Produce Actors Train people in the Performing Arts Creates Idols MISSION STATEMENT “Become a brand that brings a valuable change to the lives of everyone around the world based on YG Spirit.” YG ENTERTAINMENT HISTORY Establishe d MF and Yang Goon Entertain ment Changed name to YG Entertainment to 2001 Known worldwi de for YG Family PLACE Global Company Main Building located in Hapjeong-dong‚
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stick your finger through the hole in a doughnut‚ that a lot like food moving through the hole that is your digestive system. In other words its going to move all the way from your mouth out your anus. But its not realy inside of you. When you stick your finger through the hole of a doughnut it not technically insdie the doughnut. Just like the food that goes through your digestive system is not technically inside your body‚ its just moving through a hole in your body. We can eventually absorb that material
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Republic of the Philippines BULACAN AGRICULTURAL STATE COLLEGE Pinaod‚ San Ildefonso‚ Bulacan Prepared by: * Jaymarie O. San Pedro BSEd III- English Prepared for: * Mrs. Ana Marie D. Argamosa I. OBJECTIVES At the end of the lessons‚ the students should be able to: 1. enumerate the classes of nouns 2. define the meaning of each noun 3. appreciate the importance of understanding the classes of nouns II. SUBJECT
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muscle tissue: skeletal‚ smooth‚ and cardiac. Skeletal muscle was investigated in this lab. Skeletal muscle is composed of two filaments called actin and myosin‚ which run parallel to each other. Actin has a protein that run along it called tropomyosin‚ that prevents actin from binding to it‚ unless calcium is bound to a part of the tropomyosin called troponin. Sets of actin and myosin filaments are divided into individual units called sarcomeres. Sarcomeres are what gives skeletal muscle tissue its
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Name______________________ Lab Section ________________ Microscopic Anatomy and Organization of Skeletal Muscle and Muscle Physiology Lab 9 Skeleton Muscle Physiology: Computer Simulation Exercise 16B - Page PEx-23 Activity Sheet Objectives: • Use a simulation of skeletal muscle experiments to investigate threshold stimulus‚ maximal stimulus‚ multiple motor unit summation‚ wave summation and tetanus and the graded contraction
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