re other joints more susceptible to injury due to mobility of the joint? What li

Question

re other joints more susceptible to injury due to mobility of the joint? What liseases or injuries are most common in these joints? iscussion Due on Wednesday (07/04): When the biceps brachii contracts, the elbow flexes. When the triceps brachii contracts the elbow extends. Explain the role of both muscles in terms of agonist and antagonist in both of these movements. -Describe how the body maintains posture. Compare and contrast the role of Catt in excitation, contraction, and relaxation of a skeletal muscle. Using fiber types, design a muscle for a marathon runner and a different muscle for a 100-yard dash sprinter. Explain your answer Due on Sunday (07/08): Respond to two of your peers:

Explanation / Answer

The agonist muscle provide major force for the movement. The antagonist muscle opposes the agonist muscle. During elbow flexion, the bicep muscle is agonist and the tricep muscle is antagonist. When the agonist contract the movement will occur and antagonist relaxes.

During elbow extension, the tricep become agonist and bicep become antagonist

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