I. Types of Muscles a. Skeletal i. Striated ii. Uses intracellular calcium to contact iii. Big cylindrical cells iv. Multi-nucleated v. Voluntary vi. Location: attached to the bone vii. Used for locomotion b. Cardiac i. Involuntary ii. Uni-nucleated iii. Striated iv. Location: walls of heart v. Used to propel blood vi. Uses extracellular calcium c. Smooth i. Involuntary ii. Location: Walls of hallow organs iii. Non-striated iv. Uses extracellular calcium v. Spindle shaped cells
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Title of Experiment: An Activity Series Lab MSDS: Copper‚ Cu(s) Stability- Stable. Incompatible with strong acids‚ active halogen compounds‚ chlorine‚ fluorine‚ iodine‚ bromine‚ ammonia. May react explosively with strong oxidizing agents. Toxicology-Dust may cause respiratory irritation. Personal Protection- Suitable ventilation if handling powder. Zinc‚ Zn(s) Stability-Stable. Incompatible with amines‚ cadmium‚ sulfur‚ chlorinated solvents‚ strong acids‚ strong bases. Air and moisture
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This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Observations
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Skeletal Muscle Physiology Activity 1 1. Skeletal muscle fiber- long‚ cylindrical cell with multiple oval nuclei arranged just beneath the sarcolemma Motor unit- all of the muscle cells controlled by a single motor neuron Skeletal muscle twitch- a single stimulus-contraction-relaxation cycle in a skeletal muscle Electrical stimulus- uses an electrical current to cause a single muscle or a group of muscles to contract Latent period- the time between the stimulation of a muscle and the start
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often dictates what the desirable qualities in males and females should be. Movies‚ magazines‚ and even action figures/dolls are prime examples of society portraying the way a man or woman should look. As a result‚ severe body dysmorphic disorders‚ like muscle dysmorphia (MD)‚ have begun to emerge. Situations that can increase ones risk of developing muscle dysmorphia include environments where physical appearance is of great importance and a childhood history of being bullied. This leads to negative
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Muscles are group of tissues that covers our whole body‚ and acts as a sponge-bed for our bones. In addition‚ it prevents our bones from getting easily injured. Moreover‚ in a living body it acts as a store house of energy. Also‚ it helps our body in the movement. And‚ it also provides the essential flexibility to our body. However‚ muscle cramp is a condition in which it contracts involuntarily‚ and does not return to normalcy. The home remedies for muscle cramps relieve the unnatural contraction
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Muscular System: Muscle Metabolism 1. List the three roles of ATP in muscle contraction: 1. _Energize the power stroke of the myosin cross bridge. 2. _Disconnecting the myosin head from the binding site on actin at the conclusion of a power stroke. 3. _Energizing the calcium ion pump. 2. The potential energy in ATP is released when the terminal high-energy bond is broken by a process called hydrolysis. Write the end products of this process: ATP (+ H2O) (
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Enzyme Catalase Activity in Reaction with the Substrate Hydrogen Peroxide Abstract We performed these experiments to observe the effects of enzymes on the rate of reactions. We tested and compared the activity of the enzyme catalase on the substrate H2O2 in various states and percentages‚ and observed the absorption values of the enzyme-substrate relationship at different concentrations. Our results show that the more substrate available‚ the quicker the reaction will happen except in one test
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Compare and contrast cardiac and smooth muscle. In cardiac muscle‚ each heartbeat is triggered by the hearts own pacemaker cells‚ which initiate electrical discharge and when this reaches the contractile muscle cells (the cardiomyocytes)‚ they create an action potential which increases the concentration of calcium ions into the cell. Calcium ions play a key role in activating what is known as the contractile machinery – the actin and myosin filaments. The cardiac action potential‚ unlike other forms
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process‚ was said to be developed in China during the early 2nd century AD‚ possibly as early as the year 105 A.D.‚[1] by the Han court eunuch Cai Lun‚ although the earliest archaeological fragments of paper derive from the 2nd century BC in China.[2] The modern pulp and paper industry is global‚ with China leading production and the United States behind it.To make pulp from wood‚ a chemical pulping process separates lignin from cellulose fibers. This is accomplished by dissolving lignin in a cooking
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