Chapter 2 Lesson 1

Question 1

movement patterns

Answer 1

Common combinations of joint motions the human body uses to move in all three planes of motion

Question 2

Agonist

Answer 2

The prime mover muscle for a given movement pattern or joint action.

Question 3

Antagonist

Answer 3

A muscle that acts in direct opposition to the prime mover.

Question 4

reciprocal inhibition

Answer 4

When an agonist contracts, its functional antagonist relaxes to allow movement to occur at a joint.

Question 5

Synergist

Answer 5

Muscles that assist prime movers during functional movement patterns.

Question 6

Stabilizer

Answer 6

Muscles that support or stabilize the body while the prime movers and the synergists perform the movement patterns

Question 7

muscle action spectrum

Answer 7

The range of muscle contractions used to accelerate, decelerate, and stabilize forces.

Question 8

eccentric muscle action

Answer 8

Occurs when a muscle generates force while lengthening to decelerate an external load.

Question 9

concentric muscle action

Answer 9

Occurs when a muscle generates force while shortening to accelerate an external load.

Question 10

isometric muscle action

Answer 10

Occurs when a muscle generates force equal to an external load to hold it in place.

Question 11

muscle origin

Answer 11

The beginning attachment point of a muscle.

Question 12

muscle insertion

Answer 12

Where the end point of a muscle connects back to the skeleton.

Question 13

isolated muscle function

Answer 13

The joint motion created when a muscle contracts concentrically.

Question 14

integrated muscle function

Answer 14

The joint motion(s) created when a muscle contracts eccentrically or isometrically.

Question 15

muscle innervation

Answer 15

A muscle’s point of connection to the nervous system.