Chapter 8

Question 1

Proximal and distal insertions

Answer 1

Insertions: where the muscle is attached to and generally moves when the muscle contracts (bones)

Question 2

Agonist

Answer 2

A muscle that causes the main motion of the movement.

Question 3

Antagonist

Answer 3

A muscle that can move the joint opposite to movement produced by the agonist

Question 4

Target (prime movers)

Answer 4

A target muscle is defined as the primary muscle targeted by an exercise.

Question 5

Synergist

Answer 5

A muscle that assists another muscle to accomplish a movement.

Question 6

Stabilizer

Answer 6

A muscle that contracts with no significant

movement to maintain a posture or fixate a joint.

Question 7

Dynamic stabilizer

Answer 7

A bi-articulate muscle that simultaneously shortens at one moving joint and lengthens at an adjacent moving joint with no appreciable difference in length

Question 8

What is a good example of a dynamic stabilization

Answer 8

the squat exercise

Question 9

Antagonist stabilizer

Answer 9

An antagonist stabilizer is a muscle that contracts to negate an unwanted movement

Question 10

Uni-articulate

Answer 10

A muscle that crosses one joint (e.g., brachialis)

Question 11

Bi-articulate

Answer 11

A muscle that crosses two joints (e.g., hamstrings)

Question 12

The long bone in the thigh is called the:
A. Humerus
B. Radius
C. Fibula
D. Femur
E. Tibia

Answer 12

D. Femur

Question 13

The action of the hamstrings is to:
A. flex the knee
B. extend the knee
C. extend the hip
D. flex the knee and flex the hip
E. flex the knee and extend the hip

Answer 13

e. To flex the knee and to extend the hip

Question 14

Which of these muscle(s) is a strong flexor of the hip?
A. Hamstrings
B. Quadriceps
C. Iliopsoas
D. Hip adductors
E. Gluteus maximus

Answer 14

c. Iliopsoas