Exam 7: The Biomechanics of the Human Upper Extremity

The most commonly dislocated joint in the human body is the ________ joint.

Where do the wrist flexors originate?

Choose the term that describes the pivots joints at both the proximal and distal ends.

Carpometacarpal joint 1 is what type of joint?

What is/are the purpose(s)of the scapula muscles?

Proper pitching mechanics in youth pitchers can help prevent elbow injuries by reducing the valgus load on the elbow.

Throwing injuries to the elbow usually fall into which category?

The brachialis is strongest and most effective as an elbow flexor when the forearm is in what position?

The rotator cuff muscle which is located between the scapula and the thorax is the supraspinatus.

Which of these muscles is not a mover of the humerus?

Which of the following is not a rotator cuff muscle?

Choose the term that describes the gliding joint in which the capitellum of the humerus articulates with the proximal end of the radius.

Muscles with one attachment proximal to the wrist and the other attachment distal to the wrist are called ________ muscles.

Overuse of the wrist extensors can cause what?

The humeroulnar,humeroradial,and proximal radioulnar joints are the three articulations present at which joint?

The biceps brachii is strongest and most effective as an elbow flexor when the forearm is in what position?

The large range of movement of the thumb compared to that of the fingers is derived from the structure of which of the following?

The wrist extensor muscles originate where?

Which type of movement is permitted at the radiocarpal joint?

Which muscles originate distal to the wrist and insert distal to the wrist?