ZOO 3731 quiz 5

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Which of the following muscles is NOT involved with moving the jaw?

sternocleidomastoid

Which muscle extends the torso?

spinalis

During the cross-bridge cycle, after the calcium binds to troponin, what happens next?

Tropomyosin rolls away from actin, exposing the active binding sites

A muscle that flexes the knee would originate on the:

femur or coxal bone

The orbicularis oris muscle is an example of a:

circular muscle


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