Cross Fontana Brandt Science Fair 22 April 2013 Grasping with Straws: Make a Robot Hand Using Drinking Straws Robotics is the science and technology of robots‚ their design‚ manufacture‚ and application. Robotics requires a knowledge of electronics‚ mechanics and software‚ and is usually accompanied by a large working knowledge of many subjects. The structure of a robot is mostly mechanical and can be called a kinematic chain. This is functionality being similar to the skeleton
Premium Muscular system Myosin Muscle
muscle contraction Introduction For a skeletal muscle fiber to contract‚ a stimulus must be applied to it. The stimulus is delivered by a nerve cell‚ or neuron. A neuron has a threadlike process called and axon that my run 91 cm or more to a muscle. A bundle of such fibers from man different neurons composes a nerve. A neuron that stimulates muscle tissue is called a motor neuron. The motor neuron branches into terminal structures called telodendria that come into close approximation with
Premium Muscle Myosin Muscular system
In the first activity‚ we came to conclusion that one arm in fact was stronger than the other. Everyone’s dominant arm took more time to fatigue‚ which means it‚ stronger. I believe this was the case because the dominant arm is used more. More tension and pressures is put on this arm and it becomes stronger. However‚ according to the maximum clench force‚ the non-dominant arm is the stronger one. This proves the hypothesis wrong. The procedure might have been done wrong and that is why this is he
Premium Muscle Muscular system Physical exercise
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‚
Premium Muscle Muscular system Myosin
Muscle Fiber contractions for our purposes begins with the arrival of action potential (action potential- is an electrical current) at the end of the axon terminal (axon terminal- the swollen distal end of the motor neuron axon). When the action potential reaches the axon terminal the action potential causes the voltage- gated calcium ion channels to open allowing calcium to flow in from extracellular fluid. The presence of calcium in the axon terminal causes synaptic vesicles (synaptic vesicles-
Premium Muscle Myosin Acetylcholine
Thomas Warner Research Paper Regulation of Muscle Hypertrophy Our skeletal muscles make up 40-50% of our total mass and are essential for all humans to move‚ breath‚ and stand up straight. For the first 20 years of our lives and for those physically active after our muscles are continually growing. Satellite cells are responsible for this growth in our skeletal muscle and are referred to as muscle stem cells. When skeletal muscle cells are traumatized due to physical trauma or disease the regeneration
Premium Muscle Muscular system Bone
PTK7 Regulates Epididymal Duct Coiling Through Regulating Myosin II Activity in the Surrounding Mesenchyme Cells of the Epididymal Duct. By Angela Washington Research under the supervision of Dr. Barry T. Hinton of the Department of Cell Biology at the University of Virginia Health Systems Summer Session III 2012 Abstract It is very clear that the epididymis plays a crucial role in the maturation of spermatozoa and without a fully developed and functional epididymis male infertility will
Premium Epithelium Connective tissue
Viany Reyes November 08‚ 2011 Dr. Dunaway Neuronal signaling in muscle contraction is triggered when an action potential reaches the neuromuscular junction. At this junction‚ acetylcholine (ACh) is the main neurotransmitter. Packaged in vesicles‚ ACh fuses with the neuron’s membrane and is released into the synaptic cleft. ACh diffuses toward the motor end plate and bind to the neurotransmitter receptor on it. The muscle fiber is then triggered to produce an action potential of its own
Premium Neuron Action potential Muscle
involved in muscle contraction. List and describe three (3) ways that demonstrate ATP requirements during muscle contraction (6 points) 1) In cross-bridge cycle: • binding of ATP causes myosin head to release actin • hydrolysis of ATP by myosin used to energize (“cock”) the myosin head 2) Ca2+ reuptake into SR terminates muscle contraction • 1° active transport via Ca2+ ATPase pumps • Pump hydrolyzes ATP to pump Ca2+ into SR 3) After opening of nicotinic
Premium Acetylcholine Nervous system Muscle
Western Blotting is used to Identify a Subunit of Myosin Light Chain in the Proteins of All the Different Fish. Chae Yee Kent State University: BSCI 30140 Lab Abstract Western Blotting can be used to detect the Myosin actin light chain in different species of fish and is used to distinguish from different species based on variation‚ commonality‚ or evolutionary divergence. First‚ proteins are extracted from the tissue and loaded into a gel matrix. The matrix will separate the proteins according
Premium Molecular biology Protein Gel electrophoresis