and the relationships among structures. Physiology (fiz′-ē-OL-ō-jē; physio- = nature‚ -logy = study of) is the science of body functions‚ that is‚ how the body parts work. 2. Define each of the following terms: atom‚ molecule‚ cell‚ tissue‚ organ‚ system‚ and organism. (p. 6) ANSWER: AtomUnit of matter that makes up a chemical element; consists of a nucleus (containing positively charged protons and uncharged neutrons) and negatively charged electrons that orbit the nucleus. Molecule (MOL-e-kūl)The
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MUSCLE LAB REPORT ANATOMY& PHYSIOLOGY INTRODUCTION Muscle action is often described as departures from the standard position of the body‚ the anatomical position. Muscle fiber is an interaction of organelles and molecules within myosin binds to actin and exerts a pulling action. The result of this movement with myofibrils in which the filaments of actin and myosin slide past one another. This action shortens or contracts muscle fiber so that it pulls on its attachment. Muscle are stimulated
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Bicol University INSTITUTE OF PHYSICAL EDUCATION‚ SPORTS AND RECREATION Legazpi City Physical Fitness Physical Fitness is the capacity of the individual to accomplish his/her regular daily activities without undue fatigue and still has an ample amount of reserved energy to enjoy leisure and meet emergencies. I. COMPONENTS OF PHYSICAL FITNESS 1.1 Flexibility- The ability of muscles and joints to go through the full range of motion. It involves four basic movements‚ namely:
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were intrigued by the effects of creatine on muscular strength and anaerobic performance after 2 and 5 days. Their aim was to see if creatine had any augmenting effects on strength and performance and if it differed depending on the amount of time creatine was supplemented. To conduct their study‚ 17
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The Muscular System: Neuromuscular Junction 1. What insulates each muscle cell? __________endomysium_______________ 2. Synaptic vesicles in the axon terminal of a motor neuron contain what neurotransmitter? __________acetylcholine_______________ 3. An action potential in the axon terminal of a motor neuron opens what type of ion channels? ____________Voltage-gated Calcium_____________ 4. By what means of membrane transport does the neurotransmitter leave the axon
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Topic 1 - Muscular System: Anatomy Review: Skeletal Muscle Tissue 1. Fill in the characteristics of the three muscle types: Muscle Type Cardiac Skeletal Smooth Shape of cell Branching Long‚ cylindrical Elongated # of nuclei Uninucleate Multinucleate Uninucleate Striations Yes Yes No Control Involuntary Voluntary Involuntary 2. What attaches muscles to bone? Tendons. 3. The whole muscle is composed of muscle cells (fibers) grouped in bundles called fascicles. 4. Name the connective
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is a sodium deficit‚ the muscle will not be able to contract as well‚ decreasing the intensity at which you workout or perform. Exercise intensity is crucial in achieving muscular hypertrophy (gain in muscle mass). A sodium deficit in the body can also produce several negative side effects such as nausea‚ appetite loss‚ muscular weakness‚ and cramping. Gatorade conducted a study that compared the athletic performance of those who consumed Gatorade compared to water. They found that athletes who consumed
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activated. The signals can be analyzed to detect medical abnormalities‚ activation level‚ or recruitment order‚ or to analyze the biomechanics of human or animal movement. In 1771‚ Galvani utilized electrical stimulation to demonstrate its effects on muscular tissue produces contraction and force. This electrical response was not quantified until the development of improved recording equipment‚ which included the cathode ray oscilloscope‚ by Gasser and Erlanger in 1922. Quantification of the amplifier
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most heavily used muscle when you take a step. There are also secondary that are used and they are: The Pelvis’s Stabilizing these form a muscular crown around the pelvis. Symmetrical Tibialis Anterior muscles are in the front of the calf muscle raises the foot so it doesn’t scrap the ground as you take a stride. What changes are occurring to the muscular system as a person enters late adulthood? The amount of muscle tissue and muscle strength tend to decrease this process is called Sarcopenia which
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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 Y shaped and are shorter and wider than skeletal muscle cells Single‚ very long cylindrica Single‚ spindle shaped cells # of nuclei 1 or 2 multi 1 Striations yes yes no Control The heart The movement of the body The intestines like the small and large 2. What attaches muscles to bone? ______Tendon_______________. 3. The whole
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