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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Professor: Pierre Louis‚ Vertulie 4/16/13 A&P SKELETAL PROJECT! This system has 206 bones and associated cartilage‚ tendons‚ and ligaments. Because bone is unbending‚ it gives the body a structure‚ maintains its shape‚ and protects essential organs. Bones provide a place for muscles and supporting structures to attach‚ and‚ with the movable joints. A joint is a place of union between two or more bones that may be movable or immovable. Bone also functions as a place for mineral storage
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types of muscle skeletal which are voluntary‚ smooth muscle which are involuntary and cardiac muscle. Muscle is made up of protein filaments‚ myosin and actin. These filaments slide past each other to produce a contraction which changes both the length and shape of the cell. The primary function of the muscle is to produce both movement and force. Skeletal muscle is composed of bundles of muscle fibres containing myofibrils of thick and thin filaments (myosin and actin). Skeletal muscle have distinct
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1. Discuss the relationship between distribution of muscle fiber type and performance. How might exercise training modify or change a person’s fiber-type distribution? Skeletal muscles contain multiple fiber types that are distinguished by their different myosin ATPase speed‚ and the development of their SR. The two main fiber types are type I and type II fibers. Type II fibers have a faster ATPase and a more developed SR than type I fibers. Type II fibers are also part of a larger motor unit‚
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The Muscular System The body contains 650 muscles that allow the body to move in different ways and also helps with blood flow. There are three types of muscles including: visceral‚ skeletal‚ and cardiac. Visceral muscles are the ones found in organs. This is one of the weakest of the muscle types and is also involuntary. The only voluntary muscles‚ skeletal‚ usually attach near joints. These muscles are considered voluntary because they are physical actions that can be controlled. The last muscle
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Hannah Loback Muscle Essay The muscular system is a network of tissues that controls movement of the human body. Attached to the skeletal system are a multitude of muscles consisting of tissues‚ blood vessels‚ tendons‚ and nerves. Muscles are a bundle of fibrous tissue in the body that have the ability to contract‚ thus producing movement and maintenance of body parts. Without this system the ability to function and maintain a healthy lifestyle would be impossible. Correct posture‚ locomotion‚ and
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Maintaining a normal body temperature is crucial for optimal health and is one important aspect of homeostasis. Homeostasis is the body’s ability to balance varying internal conditions within narrow limits despite a constantly changing outside environment (Marieb & Hoehn‚ 2016). When a person is subjected to stimuli‚ which is a change in the variable‚ such as cold weather‚ temperature sensitive receptors in a person’s skin called thermoreceptors‚ detect this change. The receptors then respond providing
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The 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
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Question Does age affect people’s ability to maintain homeostasis? Does height affect people’s ability to maintain homeostasis? Hypothesis My hypothesis is that as people age‚ they begin having a more difficult time maintaining homeostasis because their body can no longer respond as quickly to an outside stimulus to restore homeostasis. However‚ due to the small age range of the sample set‚ there may be only a small discernable differences in heartbeats per minute between age groups. My hypothesis
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Duchenne Muscular Dystrophy Duchenne muscular dystrophy is a fatal genetic disorder that causes progressive muscle weakness throughout your body. This disorder is caused my mutations in the dystrophin gene. The dystrophin gene is responsible for the production of a muscle protein. So the muscles suffer a loss of protein and contractile fibers. Then the muscles replaced with fat and connective tissue. DMD mostly affects young males exclusively due to an x-linked recessive inheritance pattern
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