Skeletal Muscle Physiology Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions before submission.) Grading: True/False
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Session 1- PhysioEx Exercise 11—Kyle 1. List the following values from Chart 1: Hematocrit value for healthy male living at sea level in Boston 48 Hematocrit value for healthy female living at sea level in Boston 44 2. Were the values listed in question 1 within normal range? Yes 3. Describe the difference between the male and the female hematocrit for an individual living in Boston. The secretion of erythropoetin from the kidneys stimulates testosterone in males. Erythropoetin makes
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VISVESVARAYA TECHNOLOGICAL UNIVERSITY BELGAUM – 590010 [pic] A SEMINAR REPORT ON “AIR MUSCLES” BACHELOR OF ENGINEERING In Mechanical Engineering By STUDENT NAME USN: UNDER THE GUIDENCE OF Mr. Harsha M.Tech Assistant Professor‚ Department of Mechanical Engg Mr. AMARANATH
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We have three types of muscles in our bodies‚ skeletal‚ smooth and cardiac. Each type of muscle performs different functions in our bodies. Some of the characteristics of our muscles are that they respond to stimuli‚ they are able to shorten in length‚ they stretch when they are pulled and they tend to return to their original shape after contracting or extending them. Muscle contractions occur when our nervous system sends a signal via the neuromuscular junctions the signal arrives at the end bulb
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Advance Preparation—ATP Muscle Kit 1. Order the ATP muscle kits (Carolina) to be delivered no more than seven days before the lab. One kit provides generously for eight students. Extra vials of the chemical solutions can be ordered separately (Carolina) and will reduce waiting time. Just before the lab begins‚ cut the muscle bundles into 2-centimeter lengths and place in a petri dish in the accompanying glycerol. 64 Exercise 11 R E V I E W S H E E T NAME ____________________________________
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Christopher Couchell Muscle Physiology Purpose: The Purpose of this exercise is to understand how muscle twitch‚ contract and react to different activities. Exercise 1: Muscle Twitch A. What is a muscle twitch? A muscle twitch is the fasciculation ‚ or "muscle twitch"‚ is a small‚ local‚ involuntary muscle contraction and relaxation visible under the skin. B. According to the graphs‚ which muscle has the fastest twitch? Why? The lateral rectus eye muscle has the fastest twitch. It
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The Muscular System: Skeletal Muscle Tissue 1. Fill in the characteristics of the three muscle types: |Muscle Type |Cardiac |Skeletal |Smooth | |Shape of cell |Branching Cell |Elongated Cell |Spindle Shaped Cell | |# of nuclei |Single Central Nucleus |Multiple Peripheral Nuclei |Single Central Nucleus | |Striations |Visible
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(a straight line)? Your answer : b. no Stop & Think Questions: What is the driving force for blood flow? You correctly answered: b. pressure gradient How does the body increase the blood vessel radius? Your answer : a. smooth muscle contraction Correct answer: c. smooth muscle relaxation Experiment Data: Flow (ml/min) 4.0 12.6 30.7 63.6 117.8 201.0 321.9 490.6 Radius (mm) 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Viscosity 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Length (mm) 50 50 50 50 50 50 50 50 Pressure (mm Hg) 100
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Neurophysiology of Nerve Impulses ACTIVITY 1 The Resting Membrane Potential 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. If the extracellular K+ increases then the concentration of intracellular K+ will decrease causing a decrease in the steepness of the concentration gradient and fewer K+ ions would be drawn out. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative
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PHYSIOEX 9.0 REVIEW SHEET EXERCISE 4 Endocrine System Physiology NAME ___ LAB TIME/DATE ___ ACTIVITY 1 Metabolism and Thyroid Hormone Part 1 1 Which rat had the fastest basal metabolic rate (BMR)? ___ ___ 2 Why did the metabolic rates differ between the normal rat and the surgically altered rats? How well did the results compare with your prediction? ___ ___ ___ 3 If an animal has been thyroidectomized‚ what hormone(s) would be missing in its blood? ___ ___ 4 If an animal has been
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