LAB EXERCISE 2 THE PHYSIOLOGY OF SKELETAL MUSCLE (Martini p. 306-316) Work in groups of 4 Objectives: Name and describe the phases of a muscle twitch. Explain why the "all or none" law is reflected in the activity of a single muscle cell but not in an intact skeletal muscle. Understand that the graded response of skeletal muscle is a function of the number of muscle fibers stimulated and the frequency of the stimulus. Define and explain the physiological basis of the following: - subminimal‚
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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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Bones in our body are living tissue. They have their own blood vessels and are made of living cells‚ which help them to grow and to repair themselves. Every single person has a skeleton made up of many bones. These bones give your body structure‚ let you move in many ways‚ protect your internal organs‚ and more. As well‚ proteins‚ minerals and vitamins make up the bone. Bones have several parts‚ but are manily made out of calcium deposits. It takes around 20 years for our bones to completely
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Chapter 2 : Circulatory system Focus: Plants transport systems Water and mineral uptake Xylem and transport Phloem‚ sugar and translocation Keong BP An overview of plant transport system Keong BP Water and minerals uptake 1. Bulk Flow Transport via Xylem. 2. Transport of Water and Minerals into Xylem. 3. Absorption of Water and Minerals by Root Cells Keong BP 3. Absorption of Water and Minerals by Root Cells Keong BP Water and mineral uptake by the root hairs through
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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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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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Shannon Green Unit 7 Anatomy and physiology for health and social care Task 5(M3) describe the routine care for each malfunction Task 5 (D2) explain how the routine care given for each malfunction affects the body system Bronchitis Smoking The person needs to stop smoking because cigarette damages the tiny hair structures in the lungs called the cilia‚ they the person continues to smoke the damage will stop the cilia from functioning properly and will increase the chances of condition
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Regarding Muscles Vitamin D deficiency has been tied to mainly bone pathologies. Recent research shows that the effects of Vitamin D span further than just affecting bones and particularly cause muscle weakness. Vitamin D is responsible for aiding in the absorption of other minerals‚ such as calcium. Calcium is a key ligand in muscle contractions‚ thus‚ Vitamin D indirectly can effect muscle contractions. An article published in Nutrition Reviews‚ Vitamin D: an overview of its role in skeletal muscle
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Erythrocytes Survive 120 Days Hemoglobin * Globin: 4 folded polypeptide chains * Heme: Iron group in each polypeptide that binds 02 Enzymes: * Glycolytic: generate energy through glycolysis due to lack of mitochondria * Carbonic anhydrase: for transport of CO2 into HCO3 Erythropoiesis: * regeneration of new cells in the bone marrow Erythropoietin (hormone): * when kidneys detect not enough 02 they secrete this hormone which stimulates erythropoiesis‚ increasing 02 capacity
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The Skeletal System:Bone Tissue 1* Dynamic and ever-changing throughout life 2* Skeleton composed of many different tissues 3* Cartilage bone‚ tissue‚ epithelium‚ nerve‚ blood forming tissue‚ adipose‚ and dense connective tissue Functions of Bone 1* Supporting & protecting soft tissues 2* Attachment site for muscles making movement possible 3* Storage of the minerals‚ calcium& phosphate -- mineral homeostasis 4* Blood cell production occurs in red bone marrow (hemopoiesis) 5* Energy
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