Question

question 7
1 pts
muscles that move the upper arm originate on the:
ulna and humerus.
clavicle and scapula.
humerus.
ulna and radius.

question 8
1 pts
the origin of a muscle is on the femur, and the insertion is on the tibia. when it contracts, it bends the knee. its fibers run parallel to the body. which of the following terms might be part of its name?
rectus
oblique
femoris
both a and c

question 9
1 pts
which of the following statements is incorrect?
the origin of the muscle is attached to the bone that does not move.
the insertion of the muscle is attached to the bone that moves.
when the muscle contracts, the insertion moves toward the origin.
all of the above are correct.

Explanation:

• Question 7: Muscles that move the upper - arm originate from the clavicle and scapula. The humerus is part of the upper - arm itself, and the ulna and radius are in the forearm.
• Question 8: The term "rectus" is used for muscles with fibers running parallel to the body, and since the muscle has origin on femur and insertion on tibia and bends the knee, "femoris" can also be part of its name as it relates to the femur.
• Question 9: The origin of a muscle is attached to the bone that does not move, the insertion is attached to the bone that moves, and when the muscle contracts, the insertion moves toward the origin. So all the statements are correct.

Answer:

Question 7: B. clavicle and scapula
Question 8: D. Both A and C
Question 9: D. All of the above are correct