Osteoporosis ("porous bones"‚ from Greek: οστούν/ostoun meaning "bone" and πόρος/poros meaning "pore") is a progressive bone disease that is characterized by a decrease in bone mass and density which can lead to an increased risk of fracture.[1] In osteoporosis‚ the bone mineral density (BMD) is reduced‚ bone microarchitecture deteriorates‚ and the amount and variety of proteins in bone are altered. Osteoporosis is defined by the World Health Organization (WHO) as a bone mineral density of 2.5 standard
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to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle‚ particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ------------ Lactate + NAD The reaction above can move in both directions‚ forward (favored by Type II skeletal muscle) and reverse
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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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6: Bones and Skeletal Tissues Objectives Skeletal Cartilages 1. Describe the functional properties of the three types of cartilage tissue. 2. Locate the major cartilages of the adult skeleton. 3. Explain how cartilage grows. Classification of Bones 4. Name the major regions of the skeleton and describe their relative functions. 5. Compare and contrast the structure of the four bone classes and provide examples of each class. Functions of Bones 6. List and describe five important functions
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1. Explain the relationship between the skeletal and muscular systems. The relationship between the skeletal and muscular systems is that we are made up of bones all throughout our body and we need this to stand and hold our body together‚ similar to the skeletal system the muscular system is made up of soft tissue and is lined all over our body. We could not stand without the system as well. 2. Why is the circulatory system important? This system is important because it is used to circulate blood
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Skeletal Muscle Cell There are millions of different types of cells in the world. They are located everywhere. Some are more known than others. The skeletal muscle cell was studied by many scientist but two important scientist are Alexander Mauro and Bernard Katz. They discovered a lot about thee skeletal muscle cell. The skeletal muscle cell is located everywhere in the body. Skeletal muscle cells are attached to bones by tendons as well in some areas the skin. Skeletal muscle cells are
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muscular system is one of the most complex organ systems in the body‚ and it is imperative to the body’s survival‚ as it serves many significant functions‚ including movement‚ protection‚ posture‚ and heat production just to name a few. The muscular system has three types of muscle: skeletal‚ smooth‚ and cardiac. However‚ the main focus will be on the skeletal muscles and how they contract‚ as well as fatigue and respond to changes in temperature. In terms of the anatomy of the skeletal muscle‚ it
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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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Osteoporosis is a disease that affect strength of the bones ( literally the word osteoporosis means “ porous bone” ) leading to increased risk of bone fractures. The bone strength has two main properties‚ the mass and the quality of the bone. The bone is a living tissue made up of tough elastic collagen fibers and minerals and contains cells that make and moulds itself in a process called bone resorption‚ it also forms the rigid skeletal framework that protects body organs. Osteoporosis is influenced
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Skeletal To make sure that you are taking care of your skeletal system you must be getting calcium because your Bones depend on calcium for strength. Regular exercise like walking‚ jogging‚ or biking physical activities are important in keeping your bones strong and healthy. It is also very important to get enough calcium provided by drinking milk and eating cheeses‚ yogurt and ice cream. They all contain calcium‚ which helps bones harden and become strong. Muscular Moving/exercise the muscles
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