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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Skeletal System Study Guide – Use the lecture folder to help you answer these questions. The more detail you add‚ the better prepared for the test you will be. 1. What are the functions of the skeleton? Support & Protection‚ Body Movement‚ Hemopoiesis‚ Mineral Storage 2. What is the difference between osteoclasts and osteoblasts? Osteoblast are cells that generate bones‚ osteoclasts are cells that destroy bone. 3. How many bones do we have in our body? 206 4. What do bones need in order
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Spring 2014 1. Neuroglial cells that regulate neurotransmitter metabolism and capillary permeability are: a. neurolemmacytes b. astrocytes c. oligodendrocytes d. neurons 2. The portion of the nervous system concerned with afferent input from skeletal muscle is: a. visceral sensory b. somatic motor c. somatosensory d. propriosensory 3 Light adaptation of the eye occurs due to: a .a decrease in the active photo pigment b. an increase in active photopigment c. a shift to using rod cells d
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Muscle Contraction Helpful links: Diagrams: http://themedicalbiochemistrypage.org/muscle.php http://classes.midlandstech.edu/carterp/Courses/bio210/chap09/lecture1.html Good explanations: http://science.howstuffworks.com/life/human-biology/muscle2.htm Quiz: http://www2.muw.edu/~jfortman/220practst2.html Flashcards: http://quizlet.com/17858377/physiology-ch-8-muscles-flash-cards/ http://quizlet.com/16553525/quiz-4-flash-cards/ http://quizlet
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|Skeletal‚ Articular and Muscular Systems | |Human Anatomy & Physiology Assignment 6 | |A short study of the human bodies skeletal‚ muscular and joint types. | Contents
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shortly after birth through the development of secondary ossification centers. Intramembranous ossification forms membrane bone from fibrous connective tissue membranes‚ and results in the cranial bones and clavicles. ~Movements of Muscle~ 1) Flexion: bending a joint to decrease the angle between two bones or two body parts. Bending the elbow‚ or clenching a hand into a fist‚ are examples of flexion. When
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Muscles attached to scapula: Levator scapulae origin is transverse processes of C1-C4‚ insertion at superior angle of scapula‚ it moves scapula and flexes neck. Pectoralis minor’s origin is ribs 3-5 and insertion at coracoid process of scapula‚ it depresses scapula and elevates ribs. Rhomboids Major and Rhomboids Minor’s origin at spinous processes T1-T4‚ insertion at medial border of scapula‚ they move scapula. Serratus anterior’s origin is at ribs 1-9‚ insertion is at medial border of scapula
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The Skeletal System is the framework of the body‚ consisting of 206 bones as well as a network of tendons that is made of tough band of fibrous collagen tissue connecting a muscle to bone‚ ligaments connecting bones to joint and cartilage that allows some flexibility of movement. The skeletal system serves 4 functions: (1) Giving the body its shape (2) Protecting the vital internal organs (3) Allowing for movement (4) Storing minerals and producing blood cells The skeletal system has 6 basic components:
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Jeni Hewitt English 101 Mr. B 17 March 2013 Do you exercise? Obviously exercise is important and has many benefits. When the word exercise is mentioned‚ what comes to mind? Some people believe that exercise is more of a health and heart thing. Some believe exercise is more for appearance and the way one looks. While others believe exercise is for psychological reasons. Exercising is important for a lot of things dealing with the body. Most all benefits of exercise are helpful for the
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musculoskeletal system is made up of bones‚ joints‚ and muscles. This system gives the body form and support‚ and protects the body while allowing it to move. Basically‚ the muscles in this system perform three important body functions: the movement of body parts‚ maintenance of body parts‚ and production of body heat. These muscles all consist of a mass of protein fibers grouped together‚ and most are of mesodermal origin. And almost all of the muscle fibers you will ever have or need were present at
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