BIOL 235 Midterm Exam 2 with Complete Solution (100% Verified)
between the origin and insertion which is usually located proximally in limbs ? Correct Answer- Origin What happens during REVERSE MUSCLE ACTION? Correct 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? Correct 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 serve as levers and joints serve as ________ for the lever Correct Answer- fulcrum Agonist (Prime Movers) _________ muscles while antagonist ____________ muscles Correct Answercontract, relax What are muscles that contract and stabilize the intermediate joints called? Correct Answer- synergists What is a group of skeletal muscles, their blood vessels, and nerves called? Correct AnswerCompartment Origin an insertion of the masseter Correct Answer- Origin = maxilla and zygomatic arch Insertion = angle and ramus of the mandible What is the origin of the deltoid ? Correct Answer- acromial extremity of clavicle, acromion, and spine of scapula What are the 3 muscles that make up the hamstring ? Correct Answer- semimebranosous, semitendinosus, biceps femoris
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