Fulcrum - Study guides, Class notes & Summaries

NSCA CSCS (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A Q: Which of the following substances regulates muscle actions? a. potassium b. calcium c. troponin d. tropomyosin Answer: b. calcium Q: Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? a. acetylcholine b. ATP c. creatine phosphate d. serotonin Answer: a. acetylcholine Q: When throwing a baseball, ...

MSSC manufacturing final study guide Questions With Complete Answers(rated A)_________ is a reddish, malleable metal that conducts electricity well and resists weathering. - Steel - Cast iron - Aluminum - Copper - ANSWERCopper The mechanical advantage of a third-class lever can be found by the ratio of the length of the __________ arm divided by the length of the __________ arm. - Resistance, effort - Effort, resistance - Resistance, fulcrum - Effort, fulcrum - ANSWEREffort, resistanc...

between the origin and insertion which is usually located proximally in limbs ? o :## Origin What happens during REVERSE MUSCLE ACTION? o :## specific movements of the body the actions are reversed THEREFOR the positions of the origin and insertion of a muscle are switched What is a mechanical advantage using the example of a lever? o :## if the load is closer to the fulcrum and the effort is farther from the fulcrum only a small about of effort is needed to move the load Bones serve a...

_________ is a reddish, malleable metal that conducts electricity well and resists weathering. - Steel - Cast iron - Aluminum - Copper - ANSWERCopper The mechanical advantage of a third-class lever can be found by the ratio of the length of the __________ arm divided by the length of the __________ arm. - Resistance, effort - Effort, resistance - Resistance, fulcrum - Effort, fulcrum - ANSWEREffort, resistance A spring scale is used to measure __________. - Force - Mass - Torque...

What two variables determine the mechanical advantage of a simple machine Force, distance A screwdriver can be used to open a can of paint. In this situation, the screwdriver is being used as a Lever Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Brainpower Read More An oar is used to row a boat. The distance between the oar lock and the rowers hand is 104 cm. This distance is considered The effort distance The di...

Understanding LEVERS - Important for Assessment and Treatment correct answers Modifying Biomechanics is useful in assessment - For example, in manual muscle testing the longer the resistance arm (RA) is for the assessor, the less force the assessor will need to resist the patient's movement. Modifying Biomechanics is useful in exercise prescription - For example, you can make an exercise easier or harder by changing the lever arm length Improving your mechanical advantage will help re...

Calculus CORRECT ANSWER Calcium and phosphate salts in saliva that become mineralized and adhere to tooth surfaces. Plaque CORRECT ANSWER Soft deposit on teeth that consists of bacteria and bacterial by-products Acquired Pellicle CORRECT ANSWER Thin clear film that forms within minutes sometimes stains and comes from saliva & fluid found in the gingival sulcus Biofilm CORRECT ANSWER An organized community of microorganisms that attaches to the teeth Dental plaque CORRECT ANSWER Yello...

between the origin and insertion which is usually located proximally in limbs ? - Answer-Origin What happens during REVERSE MUSCLE ACTION? - Answer-specific movements of the body the actions are reversed THEREFOR the positions of the origin and insertion of a muscle are switched What is a mechanical advantage using the example of a lever? - Answer-if the load is closer to the fulcrum and the effort is farther from the fulcrum only a small about of effort is needed to move the load Bones se...

When compared to a classic lever system, the synovial joints of our Musculoskeletal system play the role of the _________? A. Weight B. Force C. Fulcrum D. Lever E. Resistance - Answer-C. Fulcrum. Which of the following event will occur when depolarizing graded potential's reach the membrane of the axon Hillock, causing its membrane potential to reach threshold? A. Ligand-gated Ca++ channels close rapidly B. Voltage-gated Ca++ channels open rapidly C. Ligand-gated Na+ channels close ...

Certified Mobile Crane Operator Prep Test Questions and Answers 100% CorrectCertified Mobile Crane Operator Prep Test Questions and Answers 100% CorrectCertified Mobile Crane Operator Prep Test Questions and Answers 100% CorrectCertified Mobile Crane Operator Prep Test Questions and Answers 100% Correct Where must the operator's manual be kept during crane operations? - ANSWER - The operator's manual should always be kept in the cab according to ASME B30.5, what are the minimal requirement...