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Alborosie
3 years ago
6

George is lifting weights. he starts by doing biceps curls which involves ____________ his elbows. his elbow is able to bend bec

ause the humero-ulnar joint is a ____________ joint. sam is doing leg presses, ____________ his knees as he pushes against the weights. the knee joint is primarily a ____________ joint, though it can act as a condylar joint when flexed. meanwhile, jane is doing "lat pulls" by pulling downward on a weighted bar. this movement involves ____________ of her arms. her shoulder joint is a ____________ joint, allowing a wide range of movements.
Biology
1 answer:
Lilit [14]3 years ago
3 0

George is lifting weights. He starts by doing biceps curls which involves flexing his elbows.  His elbow is able to bend because the humero-ulnar joint is a hinge joint.  Sam is doing leg presses, extending his knees as he pushes against the weights. Meanwhile, Jane is doing "lat pulls" by pulling downward on a weighted bar. This movement involves adduction of her arms.  Her shoulder joint is a  ball-and-socket joint, allowing a wide range of movements. 

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