-Understand the Blood vessels and nerves of skeletal muscle tissue. -Understand the difference between a myoblast and Satellite cells -Understand the difference between Sarcolemma and T-tubules -Know the difference between thick and thin filaments (actin vs. myosin) -Know all the components of a sarcomere ( each band‚ zone‚ & line) -Understand the neuromuscular junction and the components of the neuromuscular junction (synaptic knob‚ motor end plate‚ synaptic cleft) -Know what happens at each physiological
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acids. In general‚ proteins may be structural proteins used to build tissues‚ they may be enzymes that mediate chemical reactions‚ or they may be hormones. Examples of proteins would be channel proteins in cell membranes‚ collagen protein in the skin‚ actin and myosin in the muscles‚ and hemoglobin in red blood cells. Types of dietary sources would be‚ meat‚ milk‚ (both of which are not pure proteins‚ but are good sources of protein)‚ eggs‚ grains and beans. Carbohydrates - Complex carbohydrates
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After reading the journal Combating trafficking in persons: a call to action for global health professionals‚ I have learned that there they estimate that between 21 and 31 million people are enslaved. 22% of them are enforced to have sexual intercourse exchanged for money. This report also states. “Health care professionals can help identify victims of human trafficking‚ who commonly come into contact with providers during captivity. Providers can also help restore the physical and mental health
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Nanotechnology: Footprints to Future Nanotechnology involves Chemistry Physics Biology Electronics/Photonics Materials Science and Technology Pharmaceuticals Polymer Scientist etc. Top-Down and Bottom-Up Approach Welcome to the Nano-World Did People know about Nanoparticles earlier ????? Purple gold synthesized by Michael Faraday in 1889‚ stored in British Museum Lycurgus cup: It appears green in reflected light‚ but appears red when light is shone from inside
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Worksheet Fill in the following tables: Type of Microscopy State of the Cell (live‚ dead‚ both) Limit of General steps for resolution sample preparation/ fixation Advantage of Technique Phase contrast light microscope Amplitude contrast microscope Optical tweezers Fluorescence/ Confocal Microscopy Transmission Electron Microscope (TEM) Scanning Electron Microscope (SEM) Scientist Robert Hooke Antonie van Leeuwenhoek Ernst Karl Abbe Fritz Zernike Shimomura‚ Chalfie‚ and Tsien Ernst Ruska Schleiden
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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 called sarcomeres‚ which are the subunits of skeletal muscle. In order to generate force‚ these filaments must slide past one another (Widmaier 2011). Muscle fibers are innervated by motor neurons
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How exercise affects certain aspects of the body During exercise our body needs more oxygen and blood to keep the muscles activated. To grant this the heart pumps higher frequency of blood increasing the heart rate. Heart pumps blood through arteries faster resulting in a high blood pressure. Exercise increases the stroke volume (the amount of blood pumped in one beat)‚ so an increase in stroke volume means that the heart can pump enough blood to the body with fewer beats per minute. Even after the
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muscle myofibril in a highly simplified way. Using terms from the key‚ correctly identify each structure indicated by a leader line or a bracket. Below the diagram make a sketch of how this segment of the myofibril would look if contracted. Key: actin filament A band I band
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The length-tension relationships represent an important part in the function of skeletal muscle. When skeletal muscle is stimulated‚ passive tissue rapidly changes into dynamic tissue which can produce force. Furthermore‚ during this process‚ the length of muscle may decrease‚ increase‚ or remain the same. Moreover‚ the amount of power a muscle can produce depends on its length‚ velocity and stimulation Powers & Howley (2015). Muscle velocity and stimulation are normally in a constant when creating
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CV 1 Topical Organization of the Cardiovascular Lectures 1. 2. 3. Function & Anatomy Heart & Vascular System – Chapter 9 Cardiac Electrophysiology – Chapter 9 Hemodynamics – Static & Dynamic Hemodynamic Properties – Chapter 10 Cardiac Mechanics – Chapter 9 Cardiac Output – Chapter 9 Peripheral Vascular System – Chapter 10 Regulation of Blood Pressure – Chapter 10 4. 5. 6. 7. June 19‚ 2013 1 CV 2 Topic #1: Functions & Anatomy of the CV System Chapter 9 Functions 1. Delivery
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