Serratus Anterior 1. ABDUCTION of Shoulder Girdle Joint 2. UPWARD ROTATION of Shoulder Girdle Joint Pectoralis Minor 1. ABDUCTION of Shoulder Girdle Joint Pectoralis Major 1. FLEXION of Shoulder Joint 2. HORIZONTAL FLEXION of Shoulder Joint 3. MEDIAL (INTERNAL) ROTATION of Shoulder Joint Rhomboid Minor 1. ADDUCTION of Shoulder Girdle Joint 2. DOWNWARD ROTATION of Shoulder Girdle Joint Rhomboid Major 1. ADDUCTION of Shoulder Girdle Joint 2. DOWNWARD ROTATION of Shoulder Girdle
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Origin Insertion Action coracobrachialis (deepest underarm) coracoid process of scapula medial midshaft of humerus humerus: flexion‚ medial rotation‚ abduction biceps brachii short head coracoid process of scapula long head supraglenoid tubercle of scapula radial tuberosity‚ bicipital aponerousis humerus: flexion forearm: supination‚ flexion brachialis (in b/w) anterior distal half of humerus tuberosity of ulna forearm: flexion
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SCIENTIFIC INVESMENT WHAT IS MEAN BY SCIENTIFIC INVESMENT? Can investment analysis of common stocks be more effective by relying on so-called scientific or quantitative methods or on subjective intuitive methods? The quantitative method relieves the financial analyst from making the simpler investment "decision rules" by placing them in tables‚ charts‚ and computer programs. Evidence suggests that an intelligent use of quantitative techniques‚ strengthened by competent judgment‚ may offer fascinating
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Background Information Muscles in the human body can be classified into three different types- cardiac‚ smooth and skeletal muscles. The skeletal muscles are the muscles that can be controlled voluntarily‚ in things such walking and picking things up. The skeletal muscles are made up of bundles of muscle fibres (which are also known as myofibrils‚ as can be seen below). Each of the muscle fibres contain many sarcomeres‚ which is the most basic form of striated muscle tissue- they consist of two long
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for muscle contraction. Hypothesis: Based off the frog muscle immersed separately in Solution A of ATP and distilled water solution‚ Solution B of ATP with KCl in distilled water and MgCl2 in distilled water and solution C of KCl and MgCl2 in distilled water‚ I hypothesize that solution B of ATP with KCl in distilled water and MgCl2 in distilled water will cause the muscle to contract. Introduction: This lab consisted of discovering what solutions will cause a muscle to contract. A muscle contraction
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FROG MUSCLE PHYSIOLOGY 2) What was the smallest voltage required to produce max contraction? What proportion of the muscle fibers in the muscle do you think were contracting to produce this maximal response? Muscle fibers act in response to isolated stimuli in an all or none fashion. However‚ a muscle organ‚ such as the gastrocnemius muscle‚ is composed of many individual muscle fibers. It is known that all of the fibers in a muscle do not have the same threshold and that a stimulus applied to
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Laboratory – Muscle Physiology A. MUSCLE TONUS Observations‚ Report and Conclusion: A. Define muscle tonus and give its importance * Muscle tonus refers to a state of slight muscular contraction maintained by synchronous impulses of low frequency‚ discharged by the spinal motor neurons. * Reflex in nature. * Muscle tonus is a small amount of tension in the muscle due to weak‚ involuntary contractions of its motor units. Muscle tonus is important in a sense that it governs the
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How to Build Muscle 1. Develop a Technique Learn the proper way to do each exercise whether it is pushups or weight training. Developing a solid technique will maximize the workout and strengthen the muscles. Strength training is a method that should not be overlooked because it allows a person to start with minimal weight and add more weight as they progress. This builds more muscle which in turn builds more strength. 2. Machines vs. Free Weights Those weightlifting machines
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Skeletal muscle is a voluntary and striated muscle that attaches to the skeleton to allow control over posture and movement. Each skeletal muscle consists of bundles of muscles fibers called fascicles. These fascicles are composed of many individual muscle fibers or muscle cells that can be up to several millimeters long. These muscle fibers are composed of myofibrils‚ which are organized into thick filaments‚ myosin‚ and thin filaments‚ actin. These filaments are organized into repeating structures
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and unfamiliar exercise‚ particularly which involves eccentric muscle actions can cause muscle damage and lead to delayed-onset muscle soreness (DOMS)‚ which may impair performance. This is due to the high force features of eccentric contraction (Starbuck & Eston‚ 2011). It can also cause muscle shortening‚ swelling and loss of strength in the muscles. Injuries commonly occur during eccentric loading of the muscle; that is‚ when the muscle is contracting while it is lengthening. (LaStayo‚ et al.‚ 2003)
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